SCIENTIFIC ABSTRACT KISELEV, A.V. - KISELEV, A.V.

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• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT


USSR/Chemistry Adsorption Jul 52
.Ivne!~ Detieifidince of the Heat of Wetting of,Sili6a
G61,byVater on the.Degiree of Filling of Its Sur-
face) A. ~ V. Ki selev, K. G.. Krasil'nikov-, N., Lo
Pokrbvskiy, N. X. Avgull, Oo M. Dzhigit andK..-D.
Shcherbakova, Moscow. State U imeni M. V. L6monosov.
Zhur,! Fiz Xhim,,Vol 26, No 7, pp 986-997
Thii!,work has both theoretical and practical
The,",dependence of the heat of wetting ofIsilia* a':g'el
'..'by: water, on. the quantity of previously-adsorbed.
viii~~ was:~ measured on a homogeneous, coars.ely
silica,gel made from SiCl and having 4
porobb
kn6wn specific surface. Results 4of the measurements
estiblished the abs dependence of the heat of :vet
tirig,,by water and the'differential heat of adsorp-
tion~of the water vapor on amount of water adsorbed
.-Per unit Of surface. The,differential heat of ad-
sorption of water vapor decreases in proportion to
the increase in the degree of filling of the sur-
face.

--~IU,~,iw_,,V.k~ K. D., AtGUL's. N. N.-p- DZHIGI-,;- O*_ M:$' iiSELFj: A: *~',

Adsorpt.~ I Irons solutions In the vicially of 0a lovef
critical tenswoure~ Triethyllunifte-water on udv* cu-
bons and an lampblack. , A - V K I I d Is, V. Kuli-
OR
Chettlin (%I,"Ojw State Ai~i 4NA.k
s.S'S.R. 02, cf~ CA. 45, Fiwt.
4h. lAs-For a sysitent nith a lnwcr crit. letnis. of m6ci-
hility. th~ 40-oristion ii%)thrrtn below the crit. temp. t.
'bouhl 10.41, lhrt)tlgll 11 ssjax~ last havr an S~hajw above to;
--vwntly the i%)tkrrsui thtsold 111ttrwvS. i.e. list le'"P.
V.Wlf. of the Ad-)n~liosl 1.1souhl levrm it, 'islu. Asisocistism
W)thrms of Sless in join. In IftO (4 - Ili'). at 0. M.1.7.
aroil 0% wove deld. on 3 t." of ad%orlwlsts; a mt Wive
C 1), a ZnCitactivatesl sucrose C (U), and tam~k
iovit~ spherical particles (10). By ailmscistion, of AftOll
v ilsot. I his The fin"l. if cturser lsorri. *berm fit is
nonporous. At 0'. the alloseption Lwthrrm of MftN
pltv% through a rnax.. as tirg"ell for a cossiplettly miscible
-vorin: Above 1,. thc curves me S-shaiscil. The 0* as4
th, *Q 7' ismiterms Intersect. at Inwrt conewk., the temp.
C(.Vd. of the &IL-Cpsiou Is org.. whereas at higher temp&..
alluv IX411t, It is P04. Thiscurst"sixMids
to th: inctruxing temp. at low 00111CM,
as a result of which the beginning of cupilLtry layering and
Of nitsitinsol. adsorption (which alark rapid blerrum, of the
adsorption) is shifted to lower couclss. It the 32.7* ati-
wristion Isotherm on 116 made to coincide (throuOlt redec-
lials of the onlinxte wait by a !actLw of 11) with that of
M a, ofrelativitconess,ek. -OAtisellimberms
C0661 y up to the point of Inflection; beyonill that
Isoint. the reduced hothersn H Imloes above the isotherm 1.
C0114"UTUtly, the Primary a.j*kWI)tjM Process I% the OJQoC
%,4% It anif on 111 up to the point of I ins c"pillary Uy".
ins or multiou.A. admxIllisms. (hil""the MI-orption
therms of Mt~N imm aq. sohs- and front rjpor cral at the
same finally sulsorwalut, at C!C, - I or P,'P. - 1; coned
urntly, ill b-th Installcr4. the same. i.e. the toul. Vol. of
I%t adsorbing pores breasnei filled at that point- Ask-sx
the cmir%ls of the xd~arpt~wt. the Vapor i-othttm jwaqw~
.6bove the both"Ill Itum "it.. aml the inflection I%sint W
the latter lim at higher Una 111. the Vapor atul the
%Wn. isotherms coincide up to list point of beginning multi-
11101. ad*wption. wherculter the Vapor L*xherm risws
rapkily above thesoln. isothmn: formation of the UnIMOL
adsorption layer Is the same frout Vapor and from win.
N, Than

KISELEV, A. V. 1 Sep 52
USSR/Chemistry - Adsorption
Adsorption of Vapors on Nonporous Activated Carbon., Particularly Carbon
Black," 11. 11. Avgult., 0. M. Dzhigit., A. V. Kiselev, Moscow State U imeni
M. V. Lomonosov and Inst of Phys Chem-, Acad Sci USSR
I'Dok Ak Eauk SSSRII Vol e6, No 1. pp 95-98
Adsorption isotherms of water; methyl ale, and benzene on carbon black
are constructed for 01t0 1 p6s. Each isotherm is characteristically
different from the others., The specific characteristics and differences
are described. The purpose of the investigation was to investigate the
adsorptive properties of the carbon surface itself and to eliminate the
effect of pores, which is prominent in ordinary gas-'mask carbon. Pre-
sented by ~cad M. Y.. Dubinin 27 Jun 52. PA 234TI7

-,
KIS=, A. V. , 235T31

J
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_01

AU
vtciipuuq,: coeds=
1
gul-, O.W. amd V.
~

(M - V Loimm6wi
7.. AIM.O.,
m~
4Rv 49,,97-

jnt
Y, ZS
.0(190).
-

Lhd probjeth
C
df~flbr
COTC Otibons-with wmrsc~.
-
i
-
SUW ure as,.,p a
s.ou.,lonparms
act re
I
C (cubcia
PO-M
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..
;Tb
E'
-C
1f
l
f H
OH
011
ck
G
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a
b
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A,
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%
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all
d Ciflu stdd thP
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.,Izcd-byhysterisUd -to -M-'y..cm
tde,nsat
-~
iod.. The ad.
uc Cap
,
liti of HJ) 64 UoRpMUGS C IndiCates-that tile vapor b i
w.fPt
'
*hlch the'
adirmbed's# tk utilpiol.'Jayo fA -
Mills. on bourid by
-,
tr bontu". ...... 1
JwRGVtar ri

. . . . . . . . . .
Ji

7_7
V
a dw
ere
th
cu
ots
off
0.1
Val
Ues of
Whem -S
t
ju
t 'nA
tat 6
Ilave valuej
an
d
~10 6.1-kcaf
A,
K!
__ZQAt&*_ _,v .7.
d
Ean ICA
9.
9z, 1
Win. at 280*;,au
I d
"tion wth d flee,
, ft . In"s ud hcats -of
4 -~Th6 jdj,-
it mhulfe IWI rption.and d-
. Orptioo LS6_;
t":- - WCm 'chisi
Atp IS05-,. ctenua kf , two
at 01,
0 a 42 LI-mullmol
1.97= -d
=9.11 fop" (P/P. h ihir= Uve I
the quantjty~
bed
per 9-`40f C -black).
?~ *q ~-YFM c" -f
It- Wms of
IMP. The ococWn~W 1. 1
Imptiod hai to" of ad.
OttiblAted to- it- -1
WO*
detn' of tj
(64 ct.
d. a.. CA
4`10 -Sk6d /,61 4
11% < 1.07 687ld
J: 197
co -
eat, Of cmde~; Ibe
equatitity-.
Th
L 331,1e:W
arft at JOS sq.:A. afar_ g
vv -clfcd.:tvajo~ uto Mal.
Oti_ -k 10-6 3-q- A-). The
ed-
Wit
Tf*'
on pnor
'to--itd
craction of
A. C
RIO
MV4 bndi

N* %Im, GA

I' OL, C,A.! 47,
~

c L
l
on "y 3'k s E, f I c m 11 r 0..
N
rA n

Witil (Pt'6Anlp!C3 Ukd in the Mrlftr Werk on LIM
vtxt via
of
'h i TO CRW. to be 6W A.; and ft. op. surfam
-~-
Dt QL~
:
;4s Ma Thqs4 "ties 4
w01 wi
4
.
v
J
_ 1

. . . . . . . . . . . . .. . . . . . . . . .

Triethylasulne w sorption from vapors and from soluffon~

4 bitica gels of, difler6t- structures. A. V. F. -I& a nd
0
Z
V,V~kiiltclit4iko(M.%%Lottionoso,~St.-I RIV..' IMO
OW)
-
R. 93. 101
l R -
I
both
di
t
U
i
t
d
x
~
-
~wv
GI
S
e
ot
o
u
Cm ;4
u
unit i U tin&a:dIAfan
-POM
el -fro~q
Onn
n th
finj~
e
jorj
r
-
,
.,
e
' g
g
i
'
' 'A
*
-
;i
b
i
m
d f
t
d 11
l
j
n
0

-.
-.v
iase
rom
re o(
t
ane
n
so
n.
pr luc
ep
3
O
p
-
.
~
the c
i%ftza~ obtained with liarsegel only. Vlt-
lik d ti of hydrovarbo4mi- the- botiturn IA. ir-~
1. t ii I'dw-p
i* r4nge
i.e. Mth wunhnol~
,
ronnation. --Aftir-the
layer I forMiltion of a contirtuousImil-'..
0'.
surface :4
-.,A-i 'them amhic~ X
odemted.tawards the
mt Olt bel-,Luteo!
tic
'
-
tba bask dwracter of the.amini. r UP3 4~rm OIL,
gro gO
m6tc effcclively than
111) ~'kte group (In Meoll adsorptimi).,
IL medanista "( thiz zittli
ite adiorption frout hepfareand
met- --whIA9
LI -In-0 ber

om

KARNAIJKHOV, A.P.; KISELEV, A.Y.- KHRA OVA, Ye.Y.
,.W,M
Nature of the adsorption of nitrogen vapors on quartz and
silica gels. Dokl.AIN SSSR 94 no-5:915-918 F 154. WRA17:2)
1. Moskovskiy gosudarstvennyy universitet im. N.V.Lomonosova.
Predstavleno akademikom M.N.Dabininym.
(Adsorption) (Nitrogen) (Silica)

XIUIMV, A.Y.
Iffect of the size.of pore's azd of the chemical properties of
silica-gal surfaces on their adsorptive properties. Trudy Xom.
anal.khIn. 6,.46-76 -155.
1. Nookovskly Conudarstvennyy universitet Iment, N.V. Lomonosova I
Institut fistchemkoy khImil. Aff-SM.
(5111c&) 448-Orp'tion)

AF701597 TREASURE ISLAND BOOK REVIEW AID 802 - S
KISELEV, A. V. (Institute of Physical Chemistry, Academy of 8diendesi,
'SR
DISKUSSIYA (Discussion). In Problemy kinetiki i kataliza
(Problems of Kinetics and -d-atalysis), vol. 8. Izdatel'styo
Akademil Nauk SSSR., 1955. Section T: Effect of illumination
on the adsorbability of solids. P. 71-72.
The work by W.A. Weyl on dehydration of silicA gel is discussed,
as well as the paper-by A. N. Terenin on the formation of adsorp-
tion-active structures of silical gels.
Dehydration occurlhg'at low temperatures causes the formation of
highly reactiv'e- free radicals on the surface of silica gels,
while dehydration at high temperatures results in the formation
of a surface which does not absorb water vapor. Five references)
4 Russian (1936-1954).
1/1

En
rd. N. N. A;'O 4, V.
led.,
Xh~ i~
-,"I W v.4 4iiq-~Sq icLoia E,4 thediffcealiai
iv
M'L f nd'r- tile amt. a,ism-twd, ianegra-
The S'
ie t;v4t -~is aiw-
lillricd N;~ 71A) r~.r
it A till! "'!-A
law g.s Tl;~ !T''- '
diams. V4,1 -Ic~! from th,
equation. ftvq~,w I!,::
thL&rv-%s ui [ht: ~idsnvrbiA
for Lra=.w: and -1-;6 A. NT J a
d. The ratic. 4,-!F' houl,f IA; m. 11, -~ientwjl '~tll' it
15 A . 9~i
of C~Ivlrv
pcn%leut [.wrh'xI ~~ 111C
:11su to til-~ ~0 of H~Lrufll And
T~Ie Calcn. L~'A by F% and 1!,fu 11 15,
new (cf. Kis'lev' C .1 40. Illar. th~
pahod-, 13 filtmian
'pay- M

cai!~Cheii~ t
a ICY
P16b'i 22 2 ~~50_-
-Nis-eie--i"i
'and"Ell-tek-olib.-Yu''
So utions in
lid tan
p e over
gel: P
=ti ~
.
'
bnV struc ure
-110 an-,; 1
_7 955
The-- study.. of behzene.'ads6t -narrowing
_ptioh from solutions showed that the
-,of Pores 9 :sil ca~. gdliv--o --the third structurak type ~(unifo
upward durva tu re of
rous) iharPl~r increased absolute adsorpt on laoth
Pa.

ptanio p6pentanee- The qrpt on'..
ari& i
e such- h~.dro6arbbas-as he ads

j diams era
t ti6:1-lof--,Bii'ii~~-~~is~~In'creases-dtiring the reduction-:of q _t ~
~ en P01
Po
l
idss-ihixt.~ 49~ ul tz" d by' ng -absolute- adsorption~',
o. a The-res obtaine ._atudyi the
t
'the of ~b iore and liquid solution in heptane over. two-
~Iso rMs OnZeno~, OM VaJ3
.goIis n .tigial In'stru ture-a"-Aisted-_ -ThirtooW 1
-
-
'
:
es-,
for-enc
:(1'947.~-1
Ussn:-re
954) e;.'ProphP
Ins titutions- The- Me,:V* I-buic.inosov-, State: Universi ty Moscow

Presented. bys i3iiii. Mak,
Academician. 5 '1954

i-a"t Of adsorpuen CT at=--no vnpvrd
=dynamic& mad adearptfon forces Nit u
licrtzin,
WV, and I A
NdMA S.S.R., , Vtm. V,.b it4,q l-,
CA. 31, OW-The hmEs of vls~rpu :0,i ~ml t .10- -j
tion hotherm!! were detri fat
described previously (loc.
wkia
fie! detd. Vor
ruee-Iffie fbltowlarg Values Mv--
AV' AF* -2.40tcalit'nole. and AS* -
+ 1.9 caL ftQe;depte, A Owetkal calco. tur energy of
adsarrition a 3r with, tire Meas-ur'd-
at:
U
,-

kal
ilydt
Mid beat 0, cr
-Alucs of e sarpti Gi "ll" Of$

L EVoj A, v,
USSR/physical Chemistry Surface Phenomena. Adsorption. Chromatography. Ion
Exchange.. B-13
Abst Journal: Referat zhur Ddmlyaj No. 19, 1956) 61211
Author: Kiselev, A. V. ShAELlova, I. V.
Institution: N=e
Title: AdBorption-of-patty AJCQholoLand Phenols frcm Aqueous.8olutions on
C"bon Black:
Original
Periodical: Zh.' fizz khim#~-iq%,~L'30, No- 11 94-loB.
Abstract: view!.of r46801VIng tbeLquestiom of the orientation of,tbe
With tb~
zolecules-lofthe,ad
sorbatwaVthe surface of carbon adoorbents,
were recorddd.*t.-20., the adsorption Isotherns.(A) of n-#ropazol ~1),
n _bUtajjol~ j. j-hoMol L (nj) ', phenol. (IV), resorcinol (V), L bydro-
quinom - 0I), I'and:Iphlorog1ucInol-(VII)-*r= aqueQus solutions at
cbennel black j*vIvg'a-specIfic-Guxfacd~of 150 m2/g. Absolute iso-
tberms plotted in accordance with the thus secured and the litera-
ture data show that A of fatty alcohols and phenols at carbon black
Card V2

-b
osbuftri am In tas AlmlIPUM L11jeate COILW stud
L
t.-irovA,74tioni

V~ tA k
ail, MIU-1owJA Uctww C"agel were il-,-, e~u&.Lw
2 cpherk*1 Al SM"ta wnlyns. made by caLcininx kh~ ---a-a
lysts at IsW* for 6 hrv., aud by
lor U hrs.. bq stud y In j w e
H4. &I'd Z).v
&a4 LS,

ity w-as 1--sted by th~ B.-S.
duces the sp. surfaLt an" ' e si:
out affecting appr tilt -;,I IU~
ducts the Ap. burfaxc
ccanp

NIUM A. T. - KOTAMA, I. T.
Adsorption of water vapor by activated carbon. Zhur. fix. khIm. 30
no.12:2775-2786 D15& (mm 1o:4)
1. Akademiya nauk SSSR, Institut fisicheskoy khimil, Nomkva.
(Adsorption) (Tapors) (Carbon. A--tivated)
;W-

- e - '.. I., -, II -'l-
i- t~--,
~ - - ~XV ; - -
,~ ;~ ~ P.- , . - . .
I

n oft'suleft
cA
MC LTn
"1" 7

ion), K-
pers
a4su--'i tue
l m. Into jWj 4ad'selectivity aadsnrp-,
t3QIrp;_NC.-i;o ringtag a uCtuoWcompicies of variable
a
6 function of specifiQ conditions tit the inter-
UCtjon of'tht tidsarbed n-101s. on thp adsorbent. , Adsorption
de ' 16M a_s lindtiag camy of soly. The electron
us un L'S
-pto;( 'let 001 1' ~C
its 11-U1 -Cid7tM
~Flxd u -bouding takes plare, e.g in
lode' C lafly if 11
C!')r.--6urfiPtexC�-ww'mn -HCI tufd 'aromatic h
ydrocazlions

~i_~rfdslfmdyj C.A.
47. 304d), indicated by infra-
-Pee

re - tfho$
Njff.-'Als~dthe a6orptlon.of
~P

OrOU4~91ass;~ _'RtjN~on:$IOj jel (C.A. 4 7
9 Gas
*
a;
`

-.7-12091ii)
_~'orbf X~Okl
and III-.011 lufs-th
e characteristics.:
Ifi7 a)
jbege rjsel~ the- fidsortitidit ~ N n stegyromant to~ true 1-:
,
-them. This Is indicatect..
dlelowcrjng.of.thi~11~0.ar IvIeOll vapor pressure over-
-
dl~~ ici -rU Specific activ
ity of Sio. gel is implaisted by the'
futefUtiOD-Of the 011-9foups with:*- electrons in the, aro-
atte'6ore, Shnllai~6 tlk~ tieuxeue-Ilcl inte'ractioa. and T.:
cohipleicg tire forme e same interaction is
With PhON th
tue Oil groups 0f'06 gel with
0 atiolif -74c rielectivity of such
krotio".'effects actleally Itriportant'lor the

I ,
rmys
eft InfM
with--i4id.,hydrriezarbons (cf. C.A. 49,A4.j2ihI),'or of naph--
from tol-
muc cW_ Siniflarcooditions are dwu5sed for activechar

ecial auct g=j'
bites, and f(w the chminatographic reactions
;w 'which SiO, aud AhOrSiji gets are the adsorbents.,
IV. MIC,
ull~~~
.~j

. . .. ... .......

O-A
OLD
clooo-,, RACK
Oil
1169

SELEV A.V~ fessor, redaktor; DZHIGIT, O.M.,redaktor; MEZIYER, V.V.,
-- 4kfinichaskiy redaktor
[Surface chemical compounds and their role in adsorption; a c :ollection
of papers didi6ated to the 200th anniversary of,the. Moscow State .
University, 1755-1955J Poverkbnostnye khimichaskie soadinanila i ikh
roll v iavleniiakh adeorbtaii-, sbornik trudov konferentsii po
adoorbteii, posviashchennoi 200-latiiu Moskovskogo gosudarstvannogo
universiteta imeni N.V.-Lomonosova, 1755-1955. Moskva, Izd-vo
Hook. univ., 1957. 367 P. (HLRA 10:5)
(Surface chemistry) (Adsorption)

KIBE=j, A. V.
low-
"Capillary Condensatton-list Maxim,',*--.')Ioscow 1957
Moscow State U* In. Lomonosov and Instaftp, Chm,,q AS USSR
This paper reports inveatigati Of the'differential. beats of adsorption
up to satuntion an adsorbents of various nature and stracturso
A-3oO798,288

A. ve
a'arption of aub
zu, M
fcvitw of tlk- r

sm
bl-.f-g differomt

A of cite-m... N~JD.tlc
plietteillis-5ignio
5j

AVGULI,
Inergy of &dsorptl forces and hG&t of adoorlAion of.simple
Zz AN -
moleapies oz grap to. izv ssm Otd.khim.nauk no*2:230
~31 F '570 (NM 10: 4)
1, las%itut figicheskay khimij Akadenii nauk SSSR.

Pit-aucMiux
rumaes Ca C
-L-V.R-UMIC~3. W190517i,1021-31( .1957).-FAI a Mkhrimetc .7
-116th4UMS L't %dS=p
Di str - of caimt. heaf.'&Q'4ngj jid. don and
MetrntW heat of idsarption of rAtntanc. heptane, and ae-
tart and compaxed MW *hQzc
obtained pvrAously. The tht-r-mody-namic characteristics of
adsorption and wetting v. ere also detd. The standard values
Zf tq4Srl fri~~en=W ai~d gopy ilmd entropy of a45orp-
;tion ue-rjn~~ functions of the w. (a) of C atems in the
Art approx.
7,
wcW-'oUadwip6j4-of s-alk=es w ctiroart h1sik-on-cf, a--
.4.- 4).6 + I-SC-4. kcA./Mole. gives results that agree satis-
facturay WWW~ abWaed "peAmentally.
A- U~Zack
_77
f NO ON
Pei- 832-M. K-N-7144 4 -4

AUTHOR: Kiaelev, A. V., Doctor of chemical sciences. 30-10-5/26
TITLE: Some Problems Concerning the Theory of Adsorption
(Nekotory,ye voprosy teorii adsorbtaii)
PERIODICAL: Vestnik AN SSSR, 1957o October, Nr 10, PP- 43-53 (USSR)
ABSTRACT: The equilibrium of adsorption can be considered as
equilibrium of the adsorbent with the spatial phase of the
adsorption complexes on the surface, in which case it in
irrelevant from the thermodynamic point of view9 whether
the adsorption takes place physically or chemically.
The adsorption of monomolecular layers with a horizontal
interaction can be described b the equation of equilibrium:
.
!
a h (I - a
K
M

I'- KXlh(l-.a/.
m
This equation passes over into Lengmyur's equation in that,
T
case where no interaction takes place between the molecules
of the adsorbent.
The theoretical computation of the constants of the
Card 1/3 equilibrium of adsorption requires first the computation of

Some Problems Concerning the Theory of Idsorption 30-10-5/26
the energy of the adsorbing forces and of the entropy of
adsorption.
Computations were made for the cases a) adsorbing energy
of normal alcanes and b) adsorbing energy of some isomeric
alcanes, cyclones and aromaiia hydrocarbones. The results,
of these computations were partly diagrammatically
represented. It may be stated that the theoretically
computated values agree very well with the experimentally
found values.
In the case of the computation of the entropy of adsorption
it is shown that a satisfactory consistency of the
theoretically calculated and the experimentally found values
can also be determined.
The influence of chemical modification on the surface of the
adsorbent plays an essential Ale in the chemistry of crystals.
Concluding it may be stated that today it is already possible
to predetermine the influences of the aforesaid, effects on
various important systems and also the evaluate them
mathematically.
Card 2/3

Some Problems Concerning the Theory of Adsorption 30-10-5/26
There are 7 figures, 2 tableaq and 27 referencesp
22 of which ars, Slavic.
AVAILABLE: Library of Congress
Card 3/3

AUTHORS: kvgull, N. N., Isirikyan, A. A., 62-11-4/29
Kiselev, A. V., Lygina, I. A., Poshkus, D. P.
TITLE: Adsorption Equ1ibria and the Energy of Adsorption
Powers (Adeorbtsionnyye ravnovesiya i energiya
adsorbtsionnykh sil)-
PERIODICAL: Izvestiya AN SSSR, Otdel. Xhim. Nauk, 1957, Nr 11,
pp. 1314-1327 (USSR)
ABSTRACT: Here the th*oretical and experimental investigation of the
adsorption powers in physioal adsorption, mainly of complicated
non-polar molecules with adsorbents of an atomic and ionio
lattice, is brought. The results of the theoretical
computation are compared with the measurings of the dif-
ferential heats of the adsorption. Here a method for the
computation of the adsorption energy of non-polar molecules
with regard to three terms in the potential of the dispersion
powers with.oonstants, whio)i are computed by moans of
polarizibility and magnetization-ocafficientev was worked
out. With it the induction potential by the average
polarizibility of the adsorbed substance and the average
eleatrostatio field of the adsorbent was taken into
Card 1 considerations Furthermore the push-off potential with a

Adsorption Equilibria and the Energy of Adsorption Powers 62-11-4/29
constant in:the-.exponent, which is computed from the
individual constants of the adsorbent, is taken
into consideration.'Finally all interactions of the given
power center of-the molecule of the adsorbed substance are
added:up.with.all adsorbent'-lattice centers. The push-
off-constant."66fore-the exponential function is determined
-from the conaitio,n~lof t Ihe mi.nimum of total energy of all
~inter.action_s- i-n-an, equilibrium- distance from the adsorbent-
surf ace. ~ I t s' shown--that the computed adsorptioWenergy
-amounts,'of -ine'A-gases, -Aitrogen slid 13 hydrocarbons of
different structure~..(nor'mal and.isomeric.alcanes, alcene,
aromati o,al: ones) . on. graphi te ~ are. similar to- the measured
adsorption''heats on.graphited soot. It is shown that the
-~:comput~ed-adsor~ption-.energy amounts of the n-alcanes, of the
benzeiie:-and,-'toluene:on'-m' g-nesium.oxide are also similar to
the, me."u3~ed~l"adeorption-heitte.-~Furthermore~-it i's shown, that
e' " i_ "" ~V
in.7th .,_dase`:o ~ an -adio,kption, on graphitw the- amounts of the
first,: sicozid-and third feim.of the*-, energy, of dispersion
powerg-and,the absolute-amount of,.the push-off,energy were
90-95, or 5-109 or 0-5 - 1, or 35 - 40 % respectively of
the.total,energy of.dispersion powers in the investigated
Card 2/3

KISWAV, A.V.; MMTIII, G.G.
Adsorption of vater vapor by silica and hydration of the surface
of latter Evith oil ry in Inglish]. Koll.zhur. 19 no.5:562-571
S-0 157. (MIRA 10:10)
1,Moskovokly goeudaretvenn" universitet im. K.V. Lomonosova,
Laboratoriya adsorbtsii.
(Adsorption) (Hydration) (Silica)

I he duct Of thL- and the 47drutwn -V the
sMace of ANCIS on he A
4--t lt~ V----
'~? "ism,

)<
J, 3
NAB

4,-r i - - Q
I I' -
, - . .-, , _~~ al, tlle r"!r ll,~, - - . ,
Y I- ii~', ... I ': .-..: -- 1 .7 ~ 1 .~.. . I
. ,!..h -

j
f
~tr

a Q 41~t t,*" 's an it hydrated sit! I'd is
Ik"
an

The abs. revenible isothcr~s,f
tion between the no. of zn'~13. in a wigl,! ;a--7 -A g,i e
max- coz!tefft of the HO groupi gel ~Lrfl-c. 1. t

adsorption by S10% gvIs of known surface were de-td- The
gandaLrd MO, saraple5 (Dzhigit. d al., C-A. 40, 361~,a) of a
graded series o( gels with a total pore cc./-C-
and 4 LnZmstrW samples, pare vo!. 0.35A rk3 cc-,'Z. ~.-tre
pmi6ed is Wore but dried at 2W. a-d the part di~.az
varied between IN and 24 A. The I it ackorptloa isot herm
chtalned wAs nGE revmible, owing to Ibc turface hydrann,~.
tmt the succeeding adsorption~io~,rpti,',n ~vvlc3 here rt-
vtxsible~ The adsorption i3GOICM3 of EhC a:)d i!,-
"n gds %vith hydrated surfaces were functioas of the no. 4,
hydrated SiOlmola. on the gel vurfam; t_~As showed that the
adsorption resulted frc= the formation of H-bonds betwetu
the HIO Mols. and the OH- on tht gel surface. Thc ther-
mal history of the gets and their nort d6rus- affecteill try
little the r"wsibk adwzptian of wrttr v-.xpors- The zrrm
o occupied by I vaul. Cf water was 25 $q. A.
W M
Stcr
.

z I:-
ISIRIKTAII, A.A.: KZSXLVV, A.Y.
Heat of adsorption of n-hexane and In-heptans vapors on silica
g.ale [with summary in English]. Zhur.fiz.khim- 31 no.9:2127-2137
S '57. (Kim 11: 1)
l.M oskovskiy Gosudarstvenny7 universitet im. M.V. Lomonosova.
(Heat of adsor-Ption) (Hexane) (Heptane)

V 1q, V
76-10-7/34

AUTHORSI Zhdanov, S.P.p Kiselev, A.V.
TITLEs The Chemical Structure of Quartz and Silica Gel Surfaces and
Their Hydration' (0 khimicheskom stroyenii poverkhnosti kvArtsa
i silikagely& J yeye k1dratataii)
PERIODICALe Zhurnal Fizioheskoy Mii, 1957, Vol. 31~ Nr 10, pp. 2213-2223
(USSR)
ABSTRAM
-
Silica gel is anisomorphous body, the Sio tetrahedrons have no.
ilicon atoms are not
spatial order, the distances between the ii
constant in it. They can however, not differ considerably from
the distance in the crystalline modifications of silicon. In
order to be able to estimate approximatively the minimum amount
of ca for-silica gel data referring to the structure of one
of theogrystalline modilications of silicon, e.g. of the
ob-quartz, can be used. Here the structure of the quartz fis-
sion surface and the silica gel surfaceare investigated at
various states of the surface, as well as the influerc e of the
dehydration and the hydration of the silica gel on its adsorp-
tion properties. The mean surface taken by the OH-group at the
Card 1/2 qu&rtz- and ailica.gel surface in the case of a maximum hydra-

76-iG-7/34
The Chemical Structure of Quartz and Silica Gel Surfaces and Their Hydration
ASSOCIATIONt
SUBMITTEN
AVAILABLEg
Card 2/2
tion is determined and the number of hydroxides on the unit
of this surface. is computed. These quantities agree with those
detOrMined after the dehydration of the silica gel surface and
the irreversible adsorption Of water at it. It is shop that a
dehydration of the silica gel with great pores at 650 in va-
cuum reduces considerably the absolute amount of the water
vapor adsorption and gives a concave shapetD the adsorption
isotherm, It is shown that in the case of a surface debydrat-
ed to a great extent the ohemosorption of the water renews the
adsorption properties of silica gel. There are 6 figures, I
tab-Is, 15 Slavic references.
Institute for Chemistry Of Silicatesi"o c"Aw ~c Iniversity
imeni M-V. Lomonosov
(Akademiya nauk SSSR, Institut khimii silikatov; Moskovskiy
gosudarstvennyy universitet imeni M.V. Lomonosova)
July 4o 1956
Library of congress

AM!HORS- Karnaukhov, A.P.-, Kiselev, A.V. 76-12-5/27
TITLE; On the. Theory of the corpuscular Structure of the Advorbents. The
Capillary Condensation and the HYSteresia of Sorption in Interspaces
Between Regularly Packed Spheres (K teorii korpuskulyarnoy 3truk-tury
adsorbentov. Kapillyarasys, konderwatsiya i sorbtsiomW gisteresis
v zazorakh mezhdu pravillno upakovannymi sharami).
PERIODICAL Zhurnal Fizicheskoy Xhimii, 1957, Vol- 31, Nr 12, pp. 263-5-2643 (TJSSR)
A13STRACT: The authors undertook a theoretical description of the capillary oon-
aensation and especially of the capillary condensation hysteresis in
aystems of spherical particles with various packages. The treatise
ocaprises 3 stages: 1.) Computation of capillary condensation in
model systems of correctly packed spheres. 2.) Computation of the ca-
pillar7 condensation and polymolecular adsorption taking place common-
ly in these systems- 3-) Analysis of possible deviations of theselcom-
putations for systems with disordered package of the spheres P. and a
comparison of the results obtained with the test data. The present
report gives the results of the first stage of Investigationt 1.) An
idea is given on the pores existing between the spheres in the case
of correct packing with the coordination numbers 12, 8. 6 and 4.
Card 1/ 2 2.) The capillary condensation in systems of spherical-partioles in

On the Theory of the Corpuscular.Structure of the Adsorbents. 76-12-5/27
The Capillary Condensation and the Hysteresis of Sorption in the
Interspeces Between Regularly Packed,,;ipherez
contact oon .mists ~ essantia3.3,y of the vapor condensation round AIhe
ef.here contact points and the intexidttently filling of the nariowed
intermls between the parlioles. This filling subsequently disperses
.in the remaining pore spacee The reason for the development of the
hysteresis at vapor oondensation and with the vaporation of the
fluid. in suoh systems is shown. 3..) With a packing with the ooordi-a
nation number 4, the capillary condensation (without pol~uolecular
adsorption) is limited to one stage. It is the stage of.reversible
filling of the space round the contact points of the spheres. 4.)
Computations of the isothens with the capillary oondensation of th~
nitrogen vapors in p&&Jxgs of spherical silica particles with a dia-
meter of -100, 200 and 400 k, as well aa coordination r~zbers 12, 8s
6 and 4 were cax-rlad ou-t. There are 8 figares, i table, and 16 refe-
MAWS, 7 of which are Slavic.
ASSOCUTION: Mlosoaw Ste.-ba Uni-wernity imeni II.V.Laaonosov (Moskovskiy gosudarst-
v*nW universitet im. M.V.Lomonosova).
SUBMITTED: Tu3,y 11 1956
AVAILABLE: Llbinmry of Gongrass
Card 2/2

069-20-3-7/24
AUTHORS: Avgul I , N.N. Berezin G, I. , Kisele!~~. ; Korolev, A-Ya.
TITLE: The Heat of.Adsorption'of Hydrocarbons on Carbon Blacks of
Different Degrees of Graphitization (Teplota adsorbtaii ug-
levodorodov na sazhakh s razlichnoy stepenlyu grafitirova-
niya)
PERIODICAL: Kolloidnyy zhurnal, 1958, vol XX, Nr 3, pp 298-304 (USSR)
ABSTRACT* In the article the adsorption isotherms and the differential
heats of adsorption of 3-methylhexan and benzene on the black
sferon-6, graphitized at 2,8000C, were studied. In Graph 11
the absolute-adsorptionisotherms of the two'vapors on black
sferon-6 heated to li700 and 2,8000C are represented. Both
coincide, i.e. the temperature has no influence on the ad-
sorption properties of blacks. 'The heats of adsorption of
hydrocarbons on carbon black graphitized at-2,80000 are close
to the theoretical values for the potential of adsorption
forces calculated previously.
There are 4 graphs, 3 tables, and 17 references, 13 of which
Card I/# are Soviet and 4 English.
IIS5-e- Z~

OTHOR
TITLE
PERIODICIL
ABSTRkCT
ISIRIKYAN A.k. and KISELEV I.V. 20-2-41/62
Heat of lensene and Hefa~nevipo Idsorption. on Calcined,
and Hydrated Silica.
(Teplota adoorttaii parov benzola i geksana na prokalen-
nom i gidratiroyannom kremnezemakh.- Russian)
Doklady Akademii Nauk SSSR 1957, Vol 115, Nr 2p
Pp 343-346 (U.S.S.R.)
'it was proved by a number of papers that changes of the
chemical composition of the silicagel surface due to
surface reactionst such as dehydrationg etherification
and'haloidationg sharply alter its properties ot adsorp-
tion toward the adsorbed substances. This concerns sub-
stances.which are not only absorbed due to general inter-.
actions of.dispersion, but also due to additional
closer in teractionag e.g. of an acid-basic type.j-2he
thermaldehydration of silicagel leads to a r1ea~oAA-6',n
of the adsorption of methanol and benzene vapors' fiil.the
initial part.of the isotherm. The vapor adsorption,"of a
saturated bydrooarbon (n-heptane) is, howevers not chan-
ged by the dehydration of silicagel at 200-4000C. In
the present paper the influence of the degree of dehy-
dration of the silicagel surface on the Talaes of
CARD 1/4
20-241j62
Heat of Benzene and Hexane Vapor kdoorption on Calolned
and Hydrated Silica.
differential heat, as mentioned in the title, is studied.
An improved variety of an earlier described eet was used
f.or measurement Silica in for f "white soot" waa chosen
am initial sdoo;bent, Its prodmnootion method excluded the
formation of a solid layer of hydroxyl groups of siljoic
acid on the surface. 111.1 gives complete isotherms of
benzene-va~or' adsorption on the initial and hydrated
Bicilca sample..It follows from the illustration that the
samples are porous. In the region of capillary conden-
sation the isotherms of both samples are very similar,
but In'the initial (Purely adsorptive region) the iso-
therm of.the hydrated sample rises much higher in spite
of its smaller specific surface. It is clearly to be
seen from ill. 2 that the adsorption surface increases
in relation to bensene, due to hydration of the silica
surface. Ill- 3 gives the differential adsorption heats
of benzene and hexane on a calcined and hydrated silica
sample as dependent on the absolute value of adsorption a
(M, Mol/M2) in the region of monamolecular content. The
adsorption heat of hexane vapors is little sensitive to
an abrupt change in thd degree of surface hydratiou of
CARD 2/4 this sample, as it is the case in benzene. The obtained

2o-2-41/62
Heat of Benzene and Hexane Vapor ideorption.on Calcined
and, 4yd.rat~4d 4bilioa.
Yalues of~.differential adsorption heats of the present
hydr.ocs,Aon6.anUtheir relation to surface hydration
h f'
show.that t e' un4am4ntal interactions,with the sili-o
cagel sur`fa'cei.,re.pr'esen't the non-plar ones-of Van der
Vaal. Their'.enersy-,~howeverv is smaller than in the case
ofa:dsorption~on graphitedue to a scarcer arrangement
of centers of forces in the qutrta lattice. The absence
of a sharp. irif luence -.of. the increase, in hydroxyl conjer;-
~tiationon the.silioa-a.urface.up6n the adsorption heat
OfIdIcane indicates a low enegery condent in the usual
Antetaotions of.induotion.*In the case of benzene ad-
so'rption. the formation of x complexes with silicic acid
on-the hydrated surface only inoreases the total heat of
adsorption of benzene Q 3 by 10 ~, but the pure adsorption
heat Q -L is strongly increase* by it (close to e - OP5
it is about doubled). Thereby the form of the isotherm
of benzene vapor adsorption is highly changed.
CARD 3A
T~T
Mr!
k=

AUTHORs
TITLEs
PERIODICALt
ABSTRACTs
6ard 113
- I/
2o-6-29/47.
Kiselevq A. V.
The Adsorption of Vapors,in Form tions cf Complexes of the Molecules
of the Adsorbate on the Surface (Adsorbtsiya parov pri obrazovanii
na poverkhnosti kompleksov iz molekul adsorbata)
Doklady AN SSSR9 19579 Vol- 11T# Nr 6, pp. 1023 - 1026 (USSR)
The author investigates the absorption of vapor with consideration
of the spreading of the complexes of the molecules of the adsor-
bate vertical to the surface and along the surface. The author
deals with the adsorption of a vapor on a homogeneous surface
which does notbear any centers specific for the given adsorbate*
The general case of'Van der Waals (Van-der-Vaal's)'s interactions
inthe, surface-layer is investigated* In this connection t1v author
employs - the method of quasichemical equilibriums and examines a
chain of.quasichemical reactions# 1) The 'primary reaction ofthe
prodtiction of individual complexes ~vapcr-moleoule + free surfacq*
at individual complex). Anapression for the constant of the
equilibrium is givens.2) The Iroduction of multiple complexes along
the surfaoes'lndiiidual complex + individual complex * twofold
horizontal complex, individual complex + twofold horizontal com-,
plex ;g:t threefold horizontal complex etc. (The possibility of

2-0.6-29/4T
The Adsorption of Vapors in Formations of Complexes of the Mo3mules of the Adsor-
bate on the Surface
the.produotion of multiple complexes from multiple ones is disre-
garded here). The constants of the equilibrium are also given for
this case. Then the equation of the isotherms of the adsorption
is given and a wayto.their solution is shown- 3) The production
of vertical complexesi a) Twofold vertical complexes form in those
part's which do not carry any vertical complexes. The corresponding
quasichemical reaction has the form vapor-molecules + complexes iof
the first layer which are open toward the top %* twofold vertical
complexes. b) The production of threefoldg fourfold etc. vertical
complexes$ vapor-molecules + twofold vertical complexes j* three-
fold vertical complexes etc. The constants of the equilibriums are
given for -these cases, too. The total adsorption is equal tD the
sum of adsorption in the vertical complexes of the different types$
Then the equation of the polymolecular adsorption with considera~
tion of the production of the horizontal complexes is written down
and linearized. This equation describes the isotherms of the poly-
molecular adsorption with a convex and also with a concave initial
part. Only a approximate description of the adsorption of vapors
was given in the present paper. There are 14 referencest 9 of which
Card 2/5 are Slavic.
Z1,4'n :

41sel-ev)
24(6) PHASE I BOOK EXPIDITATION sov/14oB
Soveshchaaiye po metodam issledovaniya struktury vysokodispersnykh i poristykh tel.
2d, ianingrad, 1956.
Meto-dy iss'ledoMiya 6trUktWry Vy sokodispersnykh i poristykh tel; trudy'vtorogo
soveshchimiya (Yethods -of Inveettgating the, Structure of Highly Disperse
and Porous Bodies; Trwaactions'of the Second Conference) Moscow, Izd-vo AN
SSSR, 1958. 294 p. 2,000 copies printed.
Sponsoring Agenciev. AkademiYa nauk SSSR. Institut fizicheskoy khimii and
Institut khimii silikatov.
flesp. Ed.: Dubinih,' M.M., Academician; Ed. of Publishing House: Razumova, L.L.;
Tech. Ed.: Markovich, S.M.
PURPOSE: 7his book-is intminded for scientists, teachers and advanced-stud6jits
interested in the structural analysis of highly disperse and porous bodies#
COVERAGE: This collection contains reports by members of various Soviet ifii3ti-
tutions of higber education: Institute of Physical Chemistz7, AS
Card l/
5

Methods of Investigating the Structure of Highly (Coat.) SOV/1408
Institute of Chemistry, AS Georgian SSR; Fbx Eastern Branch, AS USSR;
Georgian Scientific Research Institute for Petroleum; State Optical Insti-
tute; leningrad Teftological Institute; Moscow and Leningrad State Universi-
ties; Far Eastern Polytechnic Institute; "Agrophysical" Institute, and others.
Introductor7 remarks were made by Professor N.A. Thropov, Director of the
Institute of Silicate Chemistry. Apart from reports under the four subject
divisions (see Table of Contents), the collection includes discussions, con-
siderations and proposals adopted at the close of the conference.
TABLE OF CONTENTS:
Foreword 3
PART I. X-RAY AND 313CTION-NICROSCOPE XRTWDS OF
STUDYING TE3.STKXTUNS OF HIGHLY DISPERSE AND POR-
OUS BODIES-
Poray-Noshits, Ye-A., and V.N. Filipovich (Institut khimii silikatoy AN SSSR-
Institute of Silicate Chemistry, AS USSR). Several New Possibilities of
a Small-angle X-ray Scattering Method
C4rd,:,2/
------ -- - ------
Methods of Invest igating the Structure of Highly (Cont) soVAoB
Leontlyev, YeeA., and V.N. IA*Iy~anovich (Thatitut fizicheskoy
11himli AN SSSR.- Institute Chemiatty, -AS'USSR)
Blectron-microseope.IrLvL-stiiption of the Structure of Porous Bodies by the
Replica Method- 19
Discussion Oy contributing authors and V.I. Lygin) 37
..PART II. ADSORKION METHODS OF -STUDYING STRUCTURE AND THE
RESULTS OF THErR APPLICATrON
A. Investigation of Systems Consisting of Spherical Particles
Kiselev' A.V. (Moskovskiy gosudarstvennyy uni versitet imeni N.V. Lawnosove i
_:~~~~fizicheskoy kbi-Ii AN SSSR - Moscow State University imeni N.V. IA=no-
sov and Institute of Physical Chemistry, AS USSR). Corpuscular Structure of
Adsorbent-Gels 47
Radushkevich, L.V. (Institut fiz .icheskoy khimii AN SSSR-Institute,of Physical
Chemistry,AS USSR). Capillary Condensation of Vapors in Systems of Spherical:
Particles 6o
Karnaukhov, A.P. (Moskovskly gosw1arstyenM universitet, imeni N.V. Lomonosova-
Moscow State University imen1 N.V. Lomonozoir). Capillary-Condensation
Cardj7yresis in Systems of Ideally Packed Spheres 71

-- . , i,
~j r _r- 7~ , I
I - - - -

V~

'AUTHORS: 'A.V -Khra ova, :Ye V 62-56-4-2/32
Kiselev, P
- -------------L--------
TITLE: Adsorption:-of Nitro-en Vapors on Graphitized !arborl
Blacks and ~ Charc oal s (Adsorbtsiya parov, azota na grafi-
tirbvannykhisazhakh i ugle)
PERIODICAL. Izvestiya -Aka&emii 'Nauk SSISR Otdeleniye Khimicheskikh'Naukl.
i
SR)
1958t "r 4, PP-~ :369 402~ (U
ABSTRACT: In papers already published (Reforences 1 ~-4) the advantages~
of work W'ith: carbon .black ~ compared to other working ~'methods.
(with active:-charcbal and.graphites) was painted~out. Tile
variety..ahd--:s_urface roughness of carbon,blacks-can be:
essentially,decreased by means of thorough heating (at high
tempereAures) In this an enlarging of the cry tallites.
in-carbon blacks-is caused and the surfaces become more.
6 -The works of the authors contain many.~investi'
homogonous.-
ation s de al ingwith the adsoiption and the diffe-entia 1 heat,
of.various vapors, as well as'of the:ndaorptioh
of adsorption:
.
of solutions
. on carbon black. (References 1-4,10`47-918,19)-,"
~
In this paper the authors deal xith the investigation of - the.--
Card 1/p adsorption of nitro-en va-nors.on various samples of original

62-58-4-2/32
Adoorption of lfitrof,,an V~61;ors on Graphiti2cd Carbon Blacks and Cl-arcoala
and ~7r"phiti,,ed.cIarbon blacks as well as of charcoal.By
annealina 'lie carbon Iblacks their rouZh surface was remark-
a,bly homo-enined. The annealing of charcoal on the same
Q
conditiona ca-.scs the destruction of part of the pores which
leads to an essential decrease of the pore size. The iso-
thermal line of the adsorption of nitroren vaporo on chLr-:
coal increases more rapidly than on carbon black. The iso-
therzal linus of the adsorption of krypton and methane
vapors on ~;rLphitized substances with homo&nous surface
Show a stop-form below the critical temperature of the
adsorption layer. Above t%e critical point the isothermal
lines do not shovr a break and keep their wave character.
There are 11 fig~ures, 1 table, and 47 references, 22 of
Card 2/,# which are Soviet.

SOV/55-58-Z-30/31
AUTHORS: Gerasimov, Ya. I., Yeremin, Ye. N., KiBelev dev
V.,P.,' Skuratc.*,''S.,M., Topchiyevaj akhparonovi M. Li
TITLEt Training and Education of Teachers of Higher Schools
and of:Scientists
h podgo-
an&Researohere ~O putyak
.
.
tovki prepodavateley. v- k
yashey shkoly i,naucbnykh rabotni ov
PERIODICAL: Vestnik Moskovskogo universiteta. Seriya matematiki, mekhaniki
khimii, 1958, Nr 6, pp 235 238 (USSR)
ABSTRAM According to, -the opipi:on of the authors the actual training,
and education- ,of qualified opecialistain'the field-of natural-,
sciences suffers,from certain drawbacks: They first go through-.
a three-yearst.stage as candidates. This kind of activity Is
in noway a-Iguarantee.for thoroughly penetrating into all
necessary fields oftheoretical and experimental workin-the
domain of physics and physical chemistry, and of the other,
saiences.related therewith. Besides the time is- too short.for,
defending-and.- roving again the truth of the scientific in-
vestigations -carried out. It is obvious that the brevity ot''
time prevents.the candidates from ascending intheirinvestiga-.-
ti6na,from a perfunctory to a more scientific level. There-iG
Card 1/3 no-possibility of selecting certain more interesting themesi.-.

Training and Education,of Teachers of Higher SOV/55-58-6-30/31
Schools, and of Spientists.and RIenearehers
and the like-Finallythe time is too short for giving the
candidate a,sufficient pedagogical training. Consequently, it
is suggested'Wreplace the-term of three years-for candidates
by aliVe yearal term f or.aasilstante-on-trial during which.time .
the practical work and the seminaries will be-conducted accord-
ing to pedagogical principles and the scientific investigations,
will be .carried out in accordance with the ~Iane of the Chair.
The examination,on the special scientific training can only:
be passed,~if.the-asaistanf-on-t rial adduces the proof of having
made,a number of particular scientific.-reportsIVand-,of having
assed the-examination on-the fundamentals of marxism and'.
p
- - ~ %
leninism,:as well as that of foreign'languageo. After, having~
completed his.' trial term and Iiaving'suboessfully passed the
final examination,,-he may become candidate lecturer at his,own
or at any other school. By- a well controlled guidance. of -the-
assistant -on-trial # an excellent ;election is warranted of
first-class men of science. Besides, this system will_~success-~_
fully further and advance the scientific work of the assistanti-
on-trial. The authors believe that the chief result of this
Card 2/3:

sul 62-58s.6-2/3'1
AUTHORS: Kiselev A V.,2 Khopina, V., V., Elitekov, Yu. A. (With the
A. I)
TITLE: The~Adeorption.,of-the Tolue ne- and Heptane Mixture on Silica-
-Gels and:.Carbon Blacks (Adsorbtsiya smesi toluola i geptana
silikagelyakh i sazhakh)
PERIODICAL: Izvestiya Ake,.demii niuk'SSSR9 Otdeleniye khimicheskikh nauk,
1958, Nr 6,-pp. 664-672 (USSR)
ABSTRACT: The present paper'is's, continuation of several earlier ones
(Refs 9, 11, 12) and,deals with the investigation of the
adsorption of toluene from solutions in heptene on silica
gels of-various.structure,se-Numerous authors (Refs 4~ 6, 13P
14) recommend.this-system(for the purpose of determining
the:epecifio.-s,urface_of catalysts and adsorbents)o AAefinji.-
tion was given,of'the-isothermal lines for the adsorption
of toluene.f.rom.solutions in.n-heptane on silica-gels having
various degreeB'~of porosity. The thickness of the monomole-
cular adsorption layer of-toluene amounts to 3.,71, the
molecules of-ioluene are oriented flaton the surface of the
Card 1/,57 silioa-gel._The-narrowing,of pores on silica-gel from 104 to

sov/62-58-6-2/57
The Adsorption of the Toluene- andReptane Mixture on Silica-Gels and Carbon
Blacks
30 R 6y~which the adsorption potential'is increased) increases
the adsorption of toluene within therange of low concentra-
thns and causess~ shifting of the isothermal maximum for
thin~pored samples in, the direction of lower concentrations*
The prevailing adsorption of aromatic hydrocarbons and ole-.
fines on. s.ilica-gel is connected with two factors-, with the
intensity of,the interaction between aromatic nuclei -and
the hydroxylene.. of, -the silicon acid, and the influence e.xer-
cised by substitilents.. Inthis way the surface occupied by
a molecule on -the silica-gel,surface is increased. On carbon-
-black with an acid.surface (from heptane-..solutions) toluene
is adsorbed throughout the entire area of ''concentration (but
not to the same-extent as on silica-gel). Carbon-black graphit-
ing reduces the-Adsorption of'. toluene considerably. There
are 8 figurest lAable~ ILnd 26 referenees, 16 of whioh are,
soviete
ASSOCIATION: Moskovskiy gosudarstvennyy universitet im. 9. V. Lomonosova
i Institut fizi.che.skoy khimii Akademii nauk SSSR
(Moscow State University imeni M. V. Lomonosov and Institute
Card 2/& of Physical ChemistryAS USSR)

3-58-7-3/36
AUTHORS: Gerasimov, Ya.I., Yeremin, Ye.N._, Xiqajex,_AV., 3kuratov, S.M.,
Topchiyeva, K.V., Professors; thakhparonov, M.I., Doctor of
Chemical Sciences and.Lebedev, V.P., Dotsent
TITLE: The National,Economy Needs Physico-Chemists (Narodnomu kho-
zyaystvu nuzhny fiziko-khimiki)
PERIODICAL: Vestnik vysshey shkoly, 1958, Nr 7, PP 14-16 (USSR)
ABSTRACT: The authors stress the necessity of creating special-faculties
on physico-chemistry in universities. At present, faculties
train chemists Whose knowledge of physics is rather limited.
The student is not trained in a special branch of chemistry,
and the shortage of time does not allow him to develop his
knowledge of practical methods.
ASSOCIATION: Moskovskiy gosudarstvennyy universitet imeni Lomonosova,
(The Mosbow State University imeni Lomonosov)
Card 1/1

AU.TUOR Kloolov,.A.T., Professor Soll/63-3-6-2G/43
TITLE- SyMpoS4Ur on the Structure and the Properties of Porous Bodies
in Bristol (Simpoziuni po strukture i svoystvam poristykh tel
v Bristole),
PERIODICAL: Khibiicheskaya nauka i promyshlennont7, 1958, Vol III, Itr 6~.
6 (US R) %
PP 615 81 S
A13STRACT: Adsorbents, catalysts, coal, building materials, textile
fibers. etc are All highly porous bodies, In March 1956 a
symposium took place in Bristol dealing -,,Tith the structure and
properties of porous bod:ies. About 70 specialists Attended
the symposium and presented 15 papers and read 1 lecture, In
the first session Professor Barrer presented a paper on
sorption in porous crystals and Professor Winn-Jones on the
characteristic of coal surfaces. The papers of the second
session wereread by Professor de Boer and Professor Ewerett
on the relation of the pore structures to adserptior pheno-
mend. Professor Desay dealt with the passing, of gas through
the pores of coal. Profe7ssor Kiselev read a paper on the in-
fluence of geometrical and chemical modification on ad-
sorption properties, Doctor Shoffield on the influence of
~,,urfacc charges on the properties of porous bodies, H.U.
Card 1/2 KiV~aradze,,-..-I the structure of metal films, King on the porous

S011165 -3 -6-20/435
Symposium on the Structure and the Properties of Porous Bodies in Bristol
structure of .,;ool and nylon, Professor Preston on the movement
of liquids in plantn and trees, and Honeyborn on t1he structure
of porous construction stones and their resistance to the in-
fluence of the weather.
Gard 1/2
WIN
R

sov/6,9-58-12-6/it
AUTHORS z Kiselev,. A.-Vi.and Nikitin.. Yu. S.
TITIZ:
n~ the Strue-
The'Effedt*of-Thermal aild Vapour Treatment o
Wive and-Oatalytic Activity of Aluminium Silicate-
Bead CatalOts.-Miyahiye 'termicheskoy * iparovoy
obtabdtbk--iia'strakturaI katalitiche8kuyti- Aktivnbst'
sh&rIkovykh.a1yumosi1ikatnykh katalizatorov)

PIMODICAL: KhImlyd i Tekhnologlya Topliv i Masel, 1958.0 Hr 12,
pp 27 32 (USSR)
ABSTRACT: Vh6rmaV oVe r-1~6at_ Ing and 'the action-of'water vapour
dohb~titute deridds factors during the' poiadnine bf
al~miidti Mi-silicate GatalyStSL and cause a decrease in'
same -,(Rof
.thL& activity. And -strudtuMl "changes of the
-7)0* Vari .
-In the 'catalytic activity due to
ations
piercing- bf-t
" .
he ddtAlysts'at high tem~ratures~'and
th
h
th
an-~
c
~the I r
vapburv w6re a6mpaftd Wi
treatment Wi
gee' in th'dir,~orous strudturee- FiVe'bead 'datalysts
W
ith slmilar~'chemiiical composition-were tested.- "They:
l
wdre'"6ub jdbtdd'to cAldinAtion'and vapour treatment in
r --- Thdse t6sts were* carrl~-d ftt 'Ih~'a.
vdrtidal kiln--In' a quartz reactor. Ads6rption and de-
sorption isothetme of methanol at 2000 were determIned,
Card 1/4 for each sample. The structural characteristics of the

SOV165-58-12-611'0
The'Effeot*of.Thermal and'Vapour Treatment on the Structure and Pata-
lytic Activity-of Aluminium.Bilicate.Bead.oatalysts
catalysts were'calouilated from these isotherms. The
datalytic activity was evaluated after cracking'of, a,
kerosine -gas. .;oil fraction of Artem-Malgobek -petroleum
66t 450100; the.-experiment was carried out-for.30 mln.~-
A'table.gives data on the structural chamc-
teristic8'. of the catal~,st a6 well as yields of gaboUne
(fraction xip;to 2000C), gas, coke and on'the rate of
coi*ersio'n. Stru*cturCchariges ddring thermal treatment
diff6r largely-from'thos'e observed during vapout',treat-
ment.- Oalcination of the catalyst at temperatures
above ~5000' caustis a a-ontracti6n'in the sp6olfUc ~ur-
face *hich.isapproximately proportional toth6 oon-
traction Of the',.por6 volume. ' The dimensions of the
~ord's~-dd not change.'
slighter'deorease'in the'volume
of'th(i pores-is'obse-rved during vapour treatment.,'but
the dimensions.ofthe pores increase rapidly (Fig-l);
-Equatiohbifor calculating these parameters are given*
Variations -in the activity of 'the catalysts (viz Table)
also ~ojht`to a sharp decrease in the cracking activity
Card 2/4 of aluminium, silicate catalysts. The depth of conversion
NOW

SOV/65-.58-12-6/16
The Effect'of Thermal and Vapour Treatment on the Structure and Uata-
lytic Activity of Aluminium Silicate Bead Catalysts
by heat- -and vapour_treated catalysts was also compared.
Larg4-grain heat- and vapour-treated catalysts had
approximately the P. sam-- effect (depth of conversion equals',,
0.29 _.0.31.~x:10--). Fine-grain,'catalysts are-less
effective'.Iddpth of cowersion equals approximately
0. 22 x 10-;d )*.Equations are derived f or calculating.-
the depth of.conversion and it is suggested that alterao-
tions'in the activity of the catalyse s are connected-
with variation's in the w6iZht of 1 m of dry granular
At equal deposition.the activity
material (Pig 2).
of the sample calainated at high temperatures is :con-
sider.Ably'higher than the activity of samplestreated
with vapourat 75010. During vapour treatment the speci-
fic surfaoe,decreases at a much faster rate than.the
L
deposition bf:the catalyst; therefore, the activity-
Card 3/4 of the vanour-treated catalyst decreases much quicker than

SOV165-58-12-6-3116
The Effect-of Thermal and Vapour Treatment on the Structure and .iata-
lytic Activity of.Aluminium-Silicate Bead Catalysts
that of1the heat treated catalyst. There are 2 Figures,
1 Table and .17 lieferences.- 8 6oviet; and 9 AnG.Lish-
ASSOCIATION: Khimi che skiy fakulltet WU, VHII UP (The Department of
Chemistry BDU VNIZ NP)
Card 4/4

GIRASIMOV, Yaj.; YEF04IN, Ye,N.; PSEW, A.V.; LIBEW, V#P#; SKMTOT,
S.M.; TOPCHrWA. -K,V,; SUMPARONOV-0-IT.I.
.Methods of preparing scientific vorkers and teachers of insti-
tutions of higher education. Vest.Mosk.un.Ser.mat.0mekh. astron,,,
f1s.,khtdo-13 no.1:235-238 158. jMIRA 12:4)
(Science-StucLv and teaching)

k,"
69-20-1-8120
AUTHORSt Kiselj9yj.A.Vj Lygin, V.I.; Neymark, I.Ye.; Slinyakova, I.B.;
I Chen, Ven'-khan.
TITLE: Electron Microscopic and*Adsorption Studies of Silica Sols
and Silica Gals (Elektronno-mikroakopicheBkoye i adsorbtsion-
noye iseledoyaniya silikazoley i silikageley)
PERIODICALs Kolloidnyy Zhurnal, 1956, Vol XX, # 1, PP 52-58 (USSR)
ABSTRACTt
Card 113
The globular theory of the structure of many gels (Silica-
gels, alumo-silica-gels, titano-gels) postulates that the
framework of these gels is made of ball-shaped primary par-
ticles. In the article the results of an electron microscopic
study are represented. The.substancea investigated are at&-.
bilized solaq peptized hydro-gels washed with liquids of dif-
erent pll~and xeiogels obtained from these hydrogels. The
!
ols and hydrogels we're investigated after application and
drying on a collodion support. The collodion supports by
applying a 1%-solution of collodion in amylacetate on the
surface of distilled water. Hydrosols were investigated by
making a carbon replica of them. A carbon film of 100 ang7
strom was applied in a vacuum device by means of thermal
bg-20-1-8/20,,
Electron Microscopic and Adsorption Studies of Silica Sols and Silica
Gitla
spraying. The carbon film is fixed by paraffin an& shaded
by chromium. The obtained replica has a dissolution of
50 angstrom and is investigated by means of the electronic
microscope UBM-100 working with 60 kv. The sol particles
of 50-100 angstrom form in the early stages of the colloid
before the formation of the -hydrogel. During further gel
formation the size of the particles is not increased. The
electron microscopic investigation of xerogels is more dif-
ficult, because the dense framework does not allow a detailed
analysis. Carbon replicas were used, therefore, to investi-
gate the porous structure. Fig. 3, v,g, represents the ste-
reomicrophotography of a xerogel, the initial hydrogel of
Which has been washed by a liquid with a pH of 10.2. In
fig. 3~4, the hydrogel has been washed with a liquid of pH
8.2. The ad6orption,method leads to the same results: the
adsorption isotherms of methanol vapors and the distribution
curves of-the pore diameters show that a decrease in the
Card 2/ 3 pH value of the washing liquid causes the formation of

AUTHOR: Kiselev, A.V. 69-20-3-14/24
TITLE: Adsorbate-Adsorbate interaotion in the Adsorption of Vapors
on Graphitized . BI.aoks'(Proyavleniye vzaimodeydtviya ddsorbat-
adsorbat pri-adsorbtsii parov na grafitirovannykh sazhakO
1. The Equations for the Vapor AdsorptJon Is6therm.Consider.-
ing the Interacti-on.Adsorbate-Adsorbate (1. Uravneniya izo-
termy adsorbtsil parov, uch.ityvayushchiye vzaimodeystviya.
adsorbat-adsorbat)
PERIODICAL:. Kolloidnyy -zhurnal,,1958, vol XX, Nr 3, pp 338-348 (USSR)
ABSTRACT: Molecules of an adsorbing substance getting into an adsorp-
.tion layer interact one with another. The influence of this
interaction is generally explained as due to the non-homo-
'geneity of the slArface. Recently, methods for the production,
of adsorblents with a homogeneous surface have been devised.
These adsorbents permit the measuring of the adsorption as
well as of the adsorption.heat. Such adsorbents are sur-
faces of blacks graphitized at temperatures higher than
1,50000' The.interaction adsorbate-adsorbate is experi-
mental!; the clearer, the stronger this interaction is, and,
the weaker the interaction of the adsorbate-adsorbate is. In
Card 1/2 the article, various equations for isotherms of monolayer ad-

69-20-3-14/24
Adsorbate -Adsorbate Interaction in the Adaorption of Vapors on Graphitized
Blacks. 1. The Equations for the Vapor Adsorption Isotherm,Considering the
Interaction Adsorbate-Adsorbate
sorption are represented which take into account the adsor-
bate-adsorbate interaction from the gaseous phase'on a homo-
geneous surface. Approximate equations for mono- and poly-
molecular capor adsorption have been derived by the method of
quasi-chemical equilibrium. These equations describe the ad-
sorption isotherms with one and two points of inflexion. The
form.of the adsorption isotherm and its initial curvature is
determined by the values and the relation of the two equili-
brium constants adsorbate-adsorbent (KI) and adsorbate-ad-
sorbate (Kn). For Kn = 0 the equations transform,to the Lang-
muir or Brunauer-Emmett-Teller type f-Ref 2 and 4
There are 10 graphs, 1 table, and 34 references, 17 of which
are Soviet, 15 English, and 2 American.
ASSOCIATION: Laboratoriya adborbtsii)Mbskovskiy'gosudarstvennyy universitet
imeni M.V. Lo-monosova (Laboratory of Adsorption, Moscow State
University imeni M.V. Lomonosov)
SUBMITTED: February 24,1958
Card 2/2
1. Carbon black-Vapors 2. Vapors-Absorptica

SOV-69-58-4-8/18
AUTHORS: LlselevA.V., Kovaleva, N.Y., Sinitsyn, V.A., Khrapova, Ye.V.
TITLE: 'Adsorbate-Adsorbate Interactions in Vapor Adsorption on
Graphitized Carbon Blacks" (Proyavleniye vzaimodeystviya ad-
sorbst-adsorbat pri adsorbtsii parov na grafitirbvannykh
sazhakh)
2. Application of Adsorption Isotherm Equations for Descrip-
tion of Experimental Data (2. Primeneniye uravneniy izoterm
adsorbtaii d1ya opisaniya eksperimentallnykh dannykh)
PERIODICAL: Kolloidnyy zhurnal, 1958, Vol XX, Nr 4, pp 444-455 (USSR),
ABSTRACT: In the articleithe:equations of Reference 1 for the isotherms
of mono- and,pollfMolecular,aldsorption of vapors are applied to
the description of the experimental isotherms of adsorption on
graphitized carbon black. The adsorption of n-alkanes is de-
scribed by the.isotherm equations 1 and 4)which are similar,
to the equations of Langmuir and Brunauer-Emmett-Teller., The
isotherm of oyclopeptan adsorption has two inflexion,points
and is described by equation 4. The experimental isotherms
and adsorption heats of nittogen, argon, and krypton vapors on
Card the carbon black R-33 graphitized at 2,700 0 C. At a tempera-

SOV-69-56-4-8116
Ad'so'rbate-Adsorbate Interactions in Vapor-Adsorption on Graphitized Carbon
Blacks.. 2. Application of.Ads,orption Isotherm Equations for Description of
Experimental Data
ture of -1~i3 0C the-pure initial adsorption heat is 0.8 kcal/
mole. It has been found that the adsorption isotherms follow
for values E),< 0. 1 the equation of Ifenry, from 0-1-0-5 the
6quation of Hill~(2) and,for higher values the equation of
Langmuir. E) is-the general degree of filling ofthe surface
by the monoiayer., Figure I shows that the adsorption-iso-
therms for nitrogen vapors calculated according to Hillts
equation coincide with the experimental values only to 0.4
and then -incline-downward. The Langmuir equation is applied
for higher.-Values. Figure 4 shows the adsorption heats of
argon vapors and the adsorption isotherms calculated according
to the equations 1 and 2.. The pure initial adsorption heats
amount-to OJ kcal/mole. Figure 5 represents the experimental
0 0
adsorption isotherms of,krypton vapors at -183 C and -195 C
from Reference 13 as well as the calorimetric adsorption heats
at -1830 C from Reference 15. The pure initial adsorption
heat is 1 5 kcal/mole'. It has been found that equation 3 cor-
W*ell
to the experimental data. Figure 7 shows the
card responds

sov-6a,-58-4-8/18
Adsbibate-Adsorbate Interactions in Vapor Adsorption on Graphitized Carbon
Blacks. 2. Application of Adsorption Isotherm Equations for Description of
Experimental Data
adsorption isotherms,for nitrogen, argon, and krypton vapors
at high vapor pressure values. In the case of nitrogen and.
argon at these values, polymolecular adsorption sets in.
Equation 4 gives good results for nitrogen. For argon.the
calculated values are higher. The adsorption.isotherms of
krypton have a step-shaped.character. Equation 4 is use d.
Figure 8 shows the isotherm and the adsorption heat for SO
0- 2 0
vapors at 0 Con carbon black sferon-6 graphitized at 2,700 C:_-
,The pure initial adsorption heat is approximately equal to
the condensation heat and reaches a maximum of 1.5 kcal/mole
at a vapor.pressure of 0.2. The experimental facts are well-
described by the equations 1 and 2. Figure 11 shows 0the iso-
~therms and theadsorption heats for ammonia at -78.8 C and
0,
methylamin at 0 C. The-ammonia isotherm has no inflexion
pointi.whereas the methylamin isotherm has two. inflexion points.
Equation 4 and Hill's equation are applied to the experimental.
data. It has been establishedithat in the same measure asthe
Card adsorbate-adsorbent interactions decrease and the adsorbate-

sov-69-58-4-8/18
Adso'rbate-Adsorbate Interactions in Vapor Adsorption on Graphitized Carbon
Blacks. 2. Application of Adsorption Isotherm Equations for Description.of
Experimental Data
adsorbate,linteractlo'ns relatively increase the isotherms
change.their shape~from convex at the initial part with
single.points of~inflexion (n-alkanes) to initially concave,
with two point-a'of inflexion .(nitrogen, argon, krypton, sulfur
dioxide* methylamin,:etc.) and to concave throughout with-,no
inflexion (water),.
There are 12 graphs, l.table, and 29 references, 14 of which
are Soviet and 15 English.
ASSOCIATIONS: Moskovskiy gosudarstvennyy universitet imeni M.V. Lomonosova,.
Laboratoriya adsorbtsl'i (Moscow State University imeni,M.V.
Lomonosov,Lab6ratory.of Adsorption)
Institut fizic,heakoy khimii AN SSSR, Laboratoriya aorbtsionnykh:
protsessov (Institute,,of.Physical Chemistry of the Academy of
Sciences of the USSR Laboratory of Sorption Processes
Card

AUTHORS: Kiselev, A. Vi, Shikaloval I. V. SOV/32-24-9-16/53
TITLE: The Determination of the Specific Surface of Soot by the
Method of Adsorption From Solutions (opredeleniye udellnoy
poverkhnosti sazh metodom adsorbtsii iz rastvorov)
PERIODICAL: Zavodskaya Laboratoriya, 1958, Vol 24, Nr 9, PP 1074-1076 (USSR).
ABSTRACT: On the basis-of a known, absolute adsorption-isotherm,.the
adsorption from solutions can) according to literature.data
(Refs 1,2), be used for the rapid determination of the specific
surface.S. Once the absolute adsorption isotherm for the
phenol-water-soot-system is known, the specific surface can be
determined more rapidly from one to two adsorption points.
using the same measuring technique as Kaunovskiy and Gofman
(Kaunovski and Hofmann) (Ref 4)- In the paper under review,
the absolute isothermallines of phenol from aqueous solutions
were det,ermined.usinp,three different soot samples: ukhtinskELYn
termich9s)M'a sazha (ilkhta thermal soot), Ukhta core soot,
and ! Uldita. cord, soot graphitized at 17000. The technique
employed is described.-The concentration of the solution in
equilibrium can be determined by the aid of an interferometer
Card 1/2 of the type ITR-2 and a calibration curve, or by titration.

SOV/32-24-9-16/53
The Determination of the Specific Surface of Soot by the Method of Adsorption
From Solutions
The amount of the adsorption x is calculated by a formula from,--.
the initial concentration and the concentration of the solution
in equilibrium. The determination time for this method depends
on the:time ofthe attainment of the adsorption equilibrium;
in series analyses, it does, however, not exceed one hour.
There are 2 figures, 1 table, and 6 references, 5 of which
are Soviet.
ASSOCIATION: Moskovskiy gosudarstvennyy universitet imo M. V. LomonosDva
(Moscow State University imeni M. V. Lomonosov)
Card 2/2

AUTHORS: Soboleva, L. N.,(Deceased)
Kiselevt A. V# 76-1-7/32
TITLE: The Adsorption of Methanol Vapors on the Hydrated Surface
of Silica Gels-and Quartz (Adsorbtsiya parov metanola na
gidratirovannoy poverkhnosti silikageley i kvartse).
PERIODICAL: Zhurnal Fizioheskoy Khimii, 1958, Vol. 32, Nr 1, Pp. 49-57
(USSR)
ABSTRACT: The isotherms of the adsorption of methanol vapors of
12 samples of silica of different porosity are compared.
The absolute isothermalline of the adsorption of great-pare
samples is defined exactly and it is compared with the ab--
solute isothermal line of the adsorption of steam. The pore
measurements are determined, at which a distortion of the
methanol adsorption isothermal lines is noticeable. Isothermal
lines for the absolute magnitudes of the adsorption a
are graphed for quartz and 5 gr(-at-pore silica gels. For the
purpose of explaining the influence of the narrowing of pores
with the residual 6 samples (silica gel) the method for the
construction of reduced adsorption isothermal lines
(ref. 8 180 and 10) was used. The authors showed that a
Card 1/3 narrowing of the silica gel pores below d 30 noticeably'

The Adsorption of Methanol Vapora on the Hydrated Surface 76-1-7/32
of Silica Gels and Quartz
increases the methanol vapor adnorption. This i3timulatiig
effect of the narrowing of pores, i.e. the approach of.
primary particles, on the energy of methanol adsorption shows.
in a much smaller scale than in the case of hydrocarbon vapor
adsorption with hydrocarbons with 4 and more carbon atoms
within a molecule (ref. 19) and is close to the corresponding
effectin the case.of the adsorption of nitrogen vapors
(ref. 20). Contrary to-the adsorption of steam (ref. 3) the
increase of adsorption.energy is clearly visible here. This
is mainly due to the increase of the dispersion interactions
with silioa eel of the methyl group of methanol. The.authors
show that the isothermal, lines of primary adsorption of
methanol vapors can be used for a reliable determination of
the specific surface of hydrated silica gels with pore
measurements of:-d at room temperature. In the case
of fine-porous silica gels this determination becomes un-
reliable. The.authors further show that the process of
adsorption of.,methanol vapors on a hydrated silica gel surfaced
is very similar tothat of the adsorption of water.
Card 2/3 vapour and that it is mainly determined by the hydrogen com-

The Adsorption of Methanol Vapor3 on the Hydrated Surface 76-1-7/32
of Silica Gels and quartz
compounds with the hydroxides of silica Cel. A thcrrual
doh~rdration of the silica 1;ol surfaca and its wethoxylation
cause a decrease-of the primary adnorption of methanol vapors.
0. M. Dzhigit assisted in the elaboration and preparation for
print.
There are 8 figuren, 1,table mid 27 rcferanco3, 24 of which
are Slavic.
ASSOCIATION: Moscow State University imeni 1J. V. Lomonosov
(Moskovskiy Cosudarstvennyy universitet im. U. V. Lomonosova)
SUBMITTED: September 1, 1956
AVAILABLE: Library of- CondrerB
Card 3/3,

AUTHORS: Isirilkyans, A. A., Kiselevq A. V. 76-212-3-28/43
TITLEs The Heat of Adsorption of Benzene Vapors on Silica Gels,
(Teplota adsbrbtbii parov benzola na si1ikag,e1yakh)..-.-,
PERIODICALs Zhurnal Fizicheskoy Khimiiq 1958, Vol. 329, Nr 39
pp..1679-688 (USSR)
ABSTRACTs The present work investigates the dependence of the heat-
of adsorption.on the,filling up of the surface and
volume of pores:,of silica gels of different stru-iture.
with hydrated aux1aces. In the final domain of capillary
condensationisharp,.maxima o.f the heat of,adsorption of
the benzene vapors..were observed and thoroughly examinedv
in the adso rption
OfLn-alkanesi? From the-data of the experimental ps~rto it
'aa gel (a - ecific
follows-that,s. coarse-pored silk KCK-2 P
surfaces -020 M2/g) and a fine-pored nc.8 (specific
sarface 8'..:520 m2 be seen from
1g) were used. As Is to
the givendiagramsp the.ieothermal line of adsorption.
for coarse-pored silica gel is S-shaped.an& shows a
Card 1/3 capillaky.,c6ndensation hysteresisq whereas in fine-pored

,The Heat of Adsorption of Benzene.Tapors on 76-32-3-28/43
silica Gels
silias go! the hyaterasis-I's loss,but sharper; In
investigations of*the heat of adsorption it was noticed:
that at the beginning of fIlling up the sur-faae)an
abrupt-heat,drop'takee place whiah later oontinues to
fall 31n'S3Xqg ~This is in. alkane adsorption~ explained
by the =Bvenness of the surface. A compaTison of the,
heats of adsorption of-the two silica gel eamples
shows that that Of fine-pored silioa gel is .ionsiderably
higher. The increased heat of adsorption of benzene on
.2
a si 1rja'gelw.Lth hydrated surface is traced back to a
formation of*'J~-aomplexes with the,hydroxyl of siliollc
acid. Thus-L.N. Terenin. in benzene adsorption on porous
glass showedAhat a dearease'in the hydroxyl groups
takes place. Adsorption experimenta in comparison with
graphIte we-re performed and the obtain-ad aiffere'neas
were explainede The h5tats of wetting,were caloulat'M by
the lIntagr-ation of the ourres of the pure heate-of
adsorption. The-maximum which the curve of the heat of
Card 2/3 adsorpt-Lon and desorption shows in the capillary

The-Heat of JLdsorption of Benzene Vapors on 76-32-3-28/43
Silica Gels
condenea-vionAs explainedby a compression and expansion
respectively of the liquid which fills up the pores of
the silicia ge1q.An which connection samples with pores
of equal-size were investigated. There are 8 figures,
1 tableg and 23 referenceag 22 of which are Soviet.
ASSOCIATIONt Moekovskiygosudarstvennyy universitet ima Mo V. Lomonosova
(Moscow State University imeni X. V. Lomonosov)
SUBMITTED: December 299 1956
Card 3/3

5W
AUTHORS; ~Jselevj A. V., Poshkus, D. P. SOY/76-32-121-26/32
TITLE: The Calculation of
the Adsorption Energy of Hydrocarbons on
-
Magnesium Oxide (Raschet energii adsorbtsii ugle,vodorodov na
okisi magniya)
PERIODICAL: Zhurnal fizicheskoy khimiip 19581 Vol 32, Nr 12, Pp 2824-2834
(USSR)
ABSTRACT;, Previous papers (Refs 1 -.7) dealt with the adsorption energies,
- on graphite and-the adsorption on atomic and ionic lattioes6
Calculations-for the magnesium oxide lattice were carried out
. for.the crystal plane ('100).-The adsorption heat of-hydrocarbons
on MgO had been previously calculate& and the results had been
reported at the Second International Congress of Surface
Activity held in London on April 1957. (Ref I), The adsorption
energy of combined molecules is understood on the basis of the
prinoiple,of additivity of molecular forces as being the
,aggregate of series of power c
enlers (Group centers CH
3' C_H2 CH).
The calculationof the aggregate energy of the interaction
takes account of the dispersion, induction and repulsion as well
Card 1/2 as of the interaction of the adsorbed molecules. The shares of

YY
10

The Calculation of the Adsor -32-12-26/32
pt-Jon Energy of SOV/76 r
Hydrocarbons onMaV-esi um Oxide
the dj.DIole --dipoleq dipole - quadrupole, and quadrupole -
quadrupole forces.of attraction we=e 81-83%, 12-14% and 3% of
the entire energy respeotively. For the saturated aliphatic
(in--luding n-heptane) as well
n-hydrocarbons (alkanes) C to C
.
4
an for benzene and toluene, a good agreement with the adsorption,
temperatures -,eported in publications was found. The energy of.
the eloctrosluatic induction forces is very lowp being only 2%.
WLth regard to the adsorbentg the oxygen ions are of chief
importance. Their dispersive interaction with magnesium ions
amounts to approximately 15% of the entire dispersion effect.
The repalsicn energy a -mounts to about 40% to 48% of the.,
aggregate,energy of attraction. There are 5 tables and. 314
references, 11-of.which are Soviet.
ASSOCIATIONt Moskovskiy gosud%rstv-enxxv'YL UniVerSi-tet iM' M. V. Lomonosova
Akadem-Tya.nauk SSSR (Moscowstate University imeni
USSR) Institut f izicheskoy
M. V. . LomonOBov Academy of Sciences
,
khimii Moskva &e Moscav, Institute of Physical Chemistry)
SUBMITTED: June 17, 1957
Card 2/2

The.Influence,;of Silicagel Surface Dehydration
20-119-2-30/60
.-on. the.Adsorption of Benzene and.-Hexane.Vapors
same structure of. -the samples are presented, with a
different degree of hydration of the surface, however.
Me isotheridal*:Iine of the absorption of hexane vapors
on the hydra'ted surfhae of a silicagel is almost linear.
Inithe a'doo.rption of hexane on sJ,1icagel a Van der Waals
interaction occurs; not only the atoms of the surface
of the,a*dsorbent but also the atoms existing within the
particles of its skeleton take part irLit..There are.
4 figures and 18 references, 15 of which are Soviet.
ASSOCIATION: Moskovskiy gosVdarstvennyy universitet im.
M. V. Lomonosova
.
(Mbsom* State"University imeni M. V. Lomonosov)
PRESENTEDt August 109 19579 bY X- Ko Dubininv Memberg Academy of
Sciences USSR
SUBMITTED: A=&- 26, 1957
Card

hTHORS:
. 2o-119-4-2816o
Isirikyan, A. A., Kiselev, A. V.
T-IT
LE: The Adsorption Heat of the Vapors of Benzene and Hexane on
quartz (Teplota adaortaii paroy benzola i geksana na kvartse)
pERIODICAL: Doklady Akademij Nauk SSSRy 19581 Vol$ 119, Nr 49
PP,g 731 - 734 (USSR),
ABSTRAM. in the cours e of thIis work 'an adsorption-colorimetric device
'
the
is used for measuring theisothermal lines of adsorption and
differential adsorption heats of the vapors of benzene and
powder up to saturation. The quartz Powder
H-hexane on a quartz
,
f 6,0 m2/g. A diagram shows the here.
had a specific. surface 0
obtained isothermal I lines of the absolute values a(per surface
unit) for the vapore.of hexane and benzene. For benzene the-iso-
thermal line was plotted to full saturation. The isothermal.
lines are reversible up to relative pressures of P/P V 0119.
and have the S-shape which is typical of the adsorptlon on-non-
a
-porous adsorbents.'In the case of higher values of Pha
~
di stinctly reproducible hysteresis was found WhiCh is connected
with the capillary condensation in the interspaces between the

Card 1/3 particles of the quartz powder* Between the quartz particles in