SCIENTIFIC ABSTRACT VEBRA, A.I. - VECERA, M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001859220003-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 99
• Document Creation Date: November 2, 2016
• Document Release Date: September 1, 2001
• Sequence Number: 3
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

BAVIS T.Ya.; M POZHELA, Yu.K.; REPSHAS, K.K. [Repsas, K.];
SHIDD11vasy V.I. [Silalnikas, V.]
Heating of the current carriers in semiconductors in strong
electric fields. Radiotekh. i elektron. 7 no.9:1519-1522 S 162.
(MIRA 15:9)
1. Institut fiziki i matematiki AN Litovskoy SSR.
(Electric fields) (Semiconductors)

STY1101 13. 1. 1.., Lyra, B. ); Vil"MA) 1,,. 1.; 1:.V . I
P, ILoactivity profiles '-. overcan' nir. Trudy !Y
B. no.1:3-9 1~6.li (MiRA .17-7)
1. Institut. geolrq~ri,,, I geografli All Lfl,,~v,,;koy

-TYRO, B.I.; VEBRA, E.I.; SHOPAUSKA.S, K.K.; KFUNDZHUA, T.G.
S
Coagulation of radioactive aerocoln with cloud dyople-te..
Soob. AN Gruz. W-H 33 no.1:61-67 Ju '64. (MIRA 17:7)
1. Institut goofiziki AN Gruzinskoy SSR. Predstavleno chlenom
korrespondentom akade~ii M,M, Miriashvili,

ACCESSION 11R: LP4031103 S/0236/64/000/001/0003/0009
AUTHOR: Sty*ro, B.I.; Vebra, E.I.; Shopauskas, K.K.
TITLE: The radioactivity profile in clouded air
SOURCE: AN LitSSR. Trudy*. Seriya B, no. 1, 1964, 3-9
TOPIC TAGS: radioactivity, dl tribution in air, distribution In
cloud , radon decomposition, coagulation coefficient
ABSTRACT: The distribution of radioaotivity in the air in a oloud
was studied and the profile obtained was associated with the
coagulation coefficient and other structural elements of the cloud
17- Measurements were made of the radioactivity In the air inside and
outside clouds by probing from aircraft; and a series of experimental.
radioactivity profiles were obtained. There is significantly leas
radioactivity in cloudy air than outside the cloud zone, but the
value never deareases to zero, and the variation of the radioacti-
vity concentration in the cloud is insignificant. This residual
radioactivity is closely connected with the microphysical charao-
teristics of clouds and depends on the magnitude of the coefficient
of coagulation of cloud droplets with radioactive aerosols. Thus
Card

AOCESSION NR: AP4031103
it appeared possible to determine this coefficient of Coagulation
from the radioactivity profile in the cloud. Formulas were derived
for determining the change of radioactivity in clouded air (N&
the number of atoms formed by radon decomposition) according to
the altitude:
No XRa An. *e-4W.
and when 0, i.e., when radon concentration Is constant:
A,+kx
]e-
1,+kn ,+kn
wherex.,is the isotope decomposition constant; XRnPz is the concen-
tration of radon in the cloud and NRn at the lower boundary
of the cloud; w is the rate of vertudd filtration of air through
the cloud; z is the altitutde; n. the concentration of the drops;
Ap, is radon decompositiong and lc Is the Coefficient of coagulatiou
f-drops with radioactive aerosols. The magnitude of the coeffi-
i1cient of coagulating radioactive aerosols with cloud drops is of
the order of 10-5 1/980. Orig. art. has: 4 figures, I t4able and
8 equations.
E.-,-d72/3

ACCESSION NR: AP4031103
ASSOCIATION: Institut geologli i geographii, akademii nauk Litovskoy SSR
(Institute of Geology and Geography, Academy of Science s)Lithuan ian SSR)
ST
JBMITTED: 20Jul63
SUB CODE: ES
ENCL: 00
NR REF SOV: 005 OTHER: 000
Co.
------------------------ ----

AGGF-SSION Nil: AP4018352
S/0251/64/033/061/006!/0067
AUTHOM: Sty*ro, B. I.; Vebr~a, E. I~; Shopauskas., K. K.; KhUndzhua, T.. G.
TITIZ. On the coagulation of radioactive aerosols with cloud drops (Presented by
RLrianaahvili, corresponding member of the Acadbmy on MLay 12, 1963)
SOUXE: All GruzSSR. Soobshcheniya, v. 33, no. 1, 1964, 61-67
TOKC TAGS: radioactive aerosol, cloud drop, coagulation coefficient, filtering
syste,- A02 03 27 v, nuclear emulsion A 2, microscope system MBI 2, turbulent mixin-g,
Brownian motion
ABSTIFLICT: A nmw experimental method is presented fo r deberriiining the coaaulation
of radioactive aerosols with cloud drops. For measuring the radioactivity in the
atmosphere an intake nozzle was installed above the overhead port of an aircraft
at a ciis'Lance of 0.5 m from the -fuselagc alonE: the direction of motion'of the
aircraft. The air was filtered.by a D-2-03-27V systen, using fiber filters. The
system was so designed that 'the drops could not porcolate into the filter (this
was checked by using arythrozene). During the test flight 1 cubic meter of air
was inducted in 6 minutes. The filter was then removed and brought in contact
with nuclear photoomulsion of type A-2. After 20 hours of exposure, the system
Card 1/2

ACCM310N MR.- AP4018352
was examined under a microscope of type MBI-2. The coefficient of coagulation wast
com ~utod from the resi.Llts- tb be on the order of 10-5 to lo-4 'per second. The
half-period of nonradioactive removal of aorosol wa3 computed to be 1-to 2 minutes.
Orig. art. has: 3 figures, I table, and 7 formulas.
ASSOCIATION: Akadomiya naulc Gruzinskoy SSR, Institut geofiziki (Acade4 of
5ciences Georgian SSR, Institute of Geophysics)
SUBIMTED: l2may63 DATE ACQ.- 1~mar64 ENCL: 0
0:
SUB CODE: ES NO FM SOV: 008 WIER: 002~
Card 2/2

STYRO, B.I.; VEBRA,,E.Yu.; SHOPAUSKAS, I.K.
Some physical characteristics of hot &lpha-radioaclive
aerosols. Atom. energ. 16 no.6:528-530 Je 164. (MIRA .17:7)

L 3106-66 Eil T1l)/J~NT(M)/FCC/EWA(h).___ _GS/Q1_
ACCESSION NR: AT5023938 UR/0000/65/000/000/0207/0216
AUTHOR: Styro, D. T.; Vebra, E. Yu.; Shopauskas, K. K
4-ti 5
TITLE, Radioactivity, sizes, and composition of a-radiating aerosols
SOURCE: Nauchnaya konfer ntsiya po
e _yadernoy meteorologii. Obninsk. 1,964. Radio-
aktivnyy(! izatopy v atmosfere i ikh ispol'zovaniye v meteoralogii (Radioactive
isotopes in the atmosphere and their use in meteorology); doklady.konferentsii.
Moscow, Atomizdat, 1965, 207-216
TOPIC TAGS: nucleai meteorology, ~icrometeorology, atmospheric pollution,
active aerosol hot particle, atmospheric boundary layer, temperature Inversion.
ABSTRACT: Basically, this paper is a.:l elaboration of an earlier study of atmospheric
samples ariginally collected at altitudes of 0-2 km over the Vilnius area (results
published in Atomnaya energiya,' no. 16, 1964), in which 20 a-radiating aerosol
particles had been discovered. Reexqmination of these samples revealed the presence
of 42 additional particles of this t.,jpe. These particles and one particle discovered
in studying the radioactive fogs of 1_9 October 1963 were examined by microphoto-
graphic techniques to determine the uizes', composition, and degree of radioactivity.
Qrig. art. has: 5 figures and I table. [ER)
I Card

1. 3106-66
'~ACCESSION NR-:-~i~&~08
iASSOCIATTON: none
SUBMITTED: '28Apr65 ENCL: 00
OTHER: 001
SUB CODE: ES, NP
ATD PRESS:Y/
r.,.4 212

ACC NN AP6034790 SOURCE CODEs UR,/0251/66/043/002/0327/03341;
AUTHORSt Styrot B. I.; Vebral Ee Yus; Shopauskaop X. K.; aundzhuaj T. G.
ORG: Institute of Geophysics AcadeaV of Sciences Georgian SSR (Institut geofiziki
Akademiya nauk Gruzinskoy SSR~
TITLE, On the problem of determining the coefficient of turbulent diffusion along
vertical concentration profiles of radon decay products
S6URCD: AN GruzSSH. Boobahcheniya, v. 43, no. 2, 1966, 327-334
TOPIC TAGS: atmospheric diffusionf radon, free atmosphere, atmospheric turbulence,
alpha particle, nuclear emulsion, aircraft/ k-2 nuclear emulsion, LI-2 aircraftj
YaX-12 aircraXt
ABSTRACT. An experimental method for determining X along radioactivity profilen in
z
the free atmosphere is described. For a layer of free atmosphere, it is assumed that
the vertical distribution of the concentration of the i-th element of the radon chain
is determined by solving a system of differential equations
:-1L K. d (V 11 NJ. 0'--
d~
d dN,
Y; + 1-, -0
d~
Card

NRt AP6034790
The following chain of radioactive substances is considered;
Pbl".--i-- Bill' -* Po'14-* PbAls
Equations describing the profiles of'the distribution of radon and three of its decay
products are obtaineds
7-1
A=1
A exp k."
7
o4 - Ij I -
-1 QIA' 44)
r=1: 2. 4
In the experimental part, theTree atmosphere is obtained by filtering air through*
fibrous materials. A-2 nuclear emulsion is used as the detector. The atmos,6here was
sounded in the areas of Tbilisi and Vilnius with LI-2 and YaK-12 aircraft. -The
radioactivity was measured according to the number of alpha tracks/=2 Of emulsion
(see Fig. 1). The advantages of the method are aimplicity and high sensitivity. This
papers was presented by Acadbmioian F. F. Davitaya on 06 Novomber 1965-

ACC NRs AP6034790-
rI.O.
0.4 0.8, 1.01
Fig. 1. Ebcperimental curve of decrease in
radioactivity with altitude (27 July 1962)
Orig, art. has: 12 formulasp 3 graphap and 1 table. I
SO CODE: 20, 18, 04/ SUBM DAM O6Nov65/ ORIG REFt 006/
rel. units
COH REFt 003

K"YRO, B.I.; VEBRA, E.Yu.; SHO?AUSKAS, K.K.
Determination of some parameters of the remo--ai of natl.;ra."
radioactive aerosols from the air. Izv. AN SSSR. Fiz. atm.
i okeana I no.12:1299-1309 D 165. (min 19: 1)
1. Submitted June 12, 1965.

kCESSZON NR: AP4041454 S/000/64/016/006/05iG/0530
AUTHORS: Sty*ro, B. I.; Vebra, E. Yu.; Shopauskas, K. K.
TITLEt On some physical characteristics of hot Alpha-active aero-
Aol particles
SOURCE: AtoMnaya energiya, v. 16, no. 6, 1964, 52&-530
70PIC TAGS: aerosol, fallout, alpha contamination, radon, neptunium
A~BSTRACT: The characteristics of about 20 a-active hot aej!diol'parj6?1
t~cles found in samples gathered near VilInyus at altitudes 0-3 km
aie described. The particles are characterized by "fans" of alpha
tracks. The fan tracks corresponding to the highest energies are
pidbably the daughter products of radon decay or some products of the,
neptunium, family. The activity of the hot particles was determined
from the.number of tracks*. and the dimensions could be determined by
making certain assumptiofis relative to the particle isotopic composi-I-
Card _ 1/3

tACCESSION
..iThM,
Y.
NR: AP4041454
tion. The few actually measured parti4le sizes lie between the valuegl
235 239
obtained when the fanlis assumed to be produced by U and Pu re-!
spectively. It can therefore be concluded that the hot aerosol
particles are not uniform and consist of isotopes such an U235 U238
and pU239. It Is concluded that'their isotopic composition'
needs further itudye Orig..:art..,has: 31'figures.-.2 formulas,-and I
table.
ASSOCIATIONs None
SUBMITTZDI- O~Aug-63 ..ENCIs- 01
Bull COD81;:xP# CB''. NR RZF-SOVs 002 OTHERs 002

ACCLSSICN Us AP4041454
I - particle no.
2 -sampling :
fliF!bt aliftude
3 - exposuve, hr
4 - number of
alpha tmks in,:
fan
5 - aCtiVity,CU
6 - dia. of act.
part. , microns
~7 Tnpuurved
8 calc. fmm
U-235 radiatim
9 i- CalC, frW
PU-139 rsdiation
10 ground level
OCLOSUR&I 01
-Scm PropAmties of hot alpha-active aerowl particles
1 2 3

T"h"OCTb 4 5

."W; pa
7

U171 0"
1 39 3- FAW 12 22,0
2 1000 74 1131
3 tOOO 74 38 7 8-10-14 '4 7.0
4 1000 235 37 2:4.10-18 - .4 8
5 1000 23-5 26 1,7-10-16 4:2
6 1000 2.3.5
17
3,7
7 toon 29, 12 7,7-10-16 - 3,3
8 .1000 235 10 6,4.10-16 - 3,1
9 1000 29P a 5. 1 - 10-10 - 2.0
10 1000 23.9 H 3's-wis - 2.6
ti I(K)n 235 to 6 4.10-16 3t
12 1000 23.5 3:240-19
2:5
13 870 240 400 2A.J(~-14 1
7 to, 6
ff 870 240 350 2,2-10-14 - to'l
Is 870 240 29 118.10-16 - 4.4'
M 240 22 4-10-16
1 - 40

17
870 .240 7 :14.jo--Is
4 - *2:7
to 240 16 l'o-io-'s 3.6
t9 as YPDIWO 240 AM
0-1
2,5 10
'6
2D Munn
W 240 5" :
1
3't 10-1 2.4

AIM-M
AUTHOR: Styro, B. I.--Styra, B. J.; Vebra, E., Yu.-Vebra, E. V.; Shopauskasp K. K-,
ORM none
TITLE: Determination of some parameters of removal of natural radioactive aerosols
from the air 17
SOURCE: AN SSSR. Izvestiya. Fizika atmosfery i okeana, v. 1p no. 12, 19659 1299-
1309
TOPIC TAGS: atmospheric radioactivity, atmospheric cloudt gas filter, radioactive
aerosol
ABSTRAM The authors describe a method for measurinp,~ther radioactivity of
'a ,'
air iii the free atmosphere and within cloud systmaVi ifs filtration
throug porous filters and the screening of drops. The actual method
,h
was d-.uscribed in a previous paper by the author (Tr. AN LitSSR, Seriya
B, 106), 1964). The authors have developed the theor7 of the experiment
and derived formulas for computing the parameter of nonradioactive re-
moval--Aof radioactive aerosols in cloud droplets. Two methods are pro-
posed for determining-A.: on the basis of the profile of the concentra-
'Vion of -radioactive substances in the air in a cloud axfd outside it and
on th13 basis of disruption of radioactive equilibrium between the daughter'
produi.,ts of rhLdon decay in the cloud zone, On the basis of-Aand data
in tht) literature on the drop concentration in a cloud the authors have
compi~liod the value of the coagulationcoefficient, K of radioactive.
Card 1/2 UDC:

ACC W 011119
0
aerosols on droplets, which on the average is equal to 3-10-6 =3/sec.
Bone shortcoming of the study is the assumption that the processes in the
-cloud zone are'stationary,' but.at present this formulation is necessa%7*
brig'O aria' has: 4 figures.. 21 formulas,, and 1 table. [JPRSj
SUB CODE: 18,, 04 SUBM DATE: 12Jun65 ORIG REF*. 009 OTH REF: 002
Card 2/2 Mr,

VEBRAS, E.A.
Scientific work of D.A. Golldgammer. 1st. i metod. est. nauk
.2:286-297 163. (MIRA 16:11)

VEBRAS, E.A._
From the history, of the development in Russia of the electro-
magnetic theory of light (works of D.A.Golidgammer) Nauch,
trudy Tul.goreinsto no-3:180-193 161. iMIRA 16t4)
(Electromagnetic theory)

--- AP60-30
ACC NR, _f2 SOURCE CODE: UR/0362/66/002/010/1055/1063
AUTHOR: Styro, B, I.; _Ve.Orene,.B, K.
ORG: none
TITLE: Preliminary results and methods of measuring radioactivity
of particles of precipitation
SOURCE: AN SSSR. Izvestiya. Fizika atmosfery i okeana, v. 2.
no. 10, 19668 1055-1063
TOPIC TAGS: radioactivityy, =fttft*r*19NW, evaporation rate,
ABSTRACT: This article describes the method of measuring the radio-
activity of raindrops and snowflakes by capturing them on polished
steel plates or chromatographic filter paper with subsequent contact
with an emulsion, The number of nonradioactive raindrops during a
continuous rain, based on a computed measurement angle of 2w was found
to be equal to 30-40% of the total number'of raindrops. The radio-
activity of individual raindrops generally increases with size with
the rate of increase leveling off. It is shown that the specific
radioactivity of raindrops increases exponentially with decreasing

Z AP6034772
droplet size. Based on this, a computation of the mean value of the
relative rate of evaporation of raindrops falling to the earth's
sur"face is made possible. Orig. art. has: 3 figures, 3 tables, and
8.-fqrmulad.
a
SUBM DATE:, 1~1`20eb66/
ORIG REP: 009/ OTH REF; 004
Card 2/2

LAZAROIU, D.F., ing,; UDRESCU, Petrel VECAS, Alexandru; RADU, Emilia; CARA-
-TAIGAR- S__ ~ ing.
ing.; BANDI, Fr.;
CASIAN,
Present problems on establishing labor norms. Probleme econ 17 no.7:
151-156 Jl 164.
1. Direktor., "Electronicall Plant, Bucharest (for Lazaroiu). 2. Di-
rector, Iprofil Bucharest (for Udresou)., 3. Head of the Department
of Labor Organization) 1profil Bucharest (for Vecas)- 4. Director,
"Rascoala din 190711 Textile Enterprise, BUdharest (for Radu). 5.
Chief Engineer,, "Rascoala din 1907" Textile Enterprise,, Bucharest
(for Caracasian). 6. Directorp l'Bucurestill Glass Factory (for Bandi),
7. Chairman of the State Committee for Labor and Wage Problems (for
Taigar).

VECEK, Ales, inz.
Opening of a heat glazed glass factory in the United Statem.
Skalr a keramik 14 no.81236 Ag 164.

VECEK B.- VOSTAIEKY M,
-- :=L=4
Carbon dio3dde. Zvaranie 1-2 no.1:11-13 Ja 163.
1. Technoplyn, n.p.., Praha (for Vecek). 2. Vychodoceske chemicke
zavody Synthesia,. n.p., Pardubice.- Semtin (for Vostatek).

ECL
T
RA, M. ; jURECEK, 1-1.
"Identification of' organic sul~,stances. III. --studios on alkyl thiu-
ronium salts", P. 72-2. , (CH-EMICKE LISTY, Vol. 46, No. 12, Poe. 10,52,
Praha, Czechoslovakia)
30: Monthly List of East Euroijean- Accossions, (V,,i~AL) LC~ Vol. 4p
ii,o. 6, June 1955, Uncl.

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as foNoTed by me-mtring the Lon~. of the
OAH solng. of-halides wirl. in Njc-)CO, Since the!
reactivity of a balogon depi!nd~ on-the nature and typed ')f.'
linkage of the hal?.,gen; and deterazineii the me of. inter-
el'unge with CS(I 'CAU~Cn the iui:r6ase Of mid
it L po~,ibl lc, by meang of, (he cand. masurements, to~ est.
the n3hir'. aml type cil halog.z)%. SPPCYI-- Cond. (it: 10-1,
U-1 ern.-I) tit 60' atcer.3 hr~, (if tht- mm-tion mixt. hn 0,05.1f
7' .gm solim. in acttona Of org. hafiditi itith 0.03-11 CS(NHA xiveni
Mer IM00, Cff,:CIIC[42Br 4100, NiC1111ir asm,
3700, Br(CHARr 101, EtBr 1400, Cj~jljjlir 12~30, I'rBr
1240, 0711uDr 120D, BuBr 1150, lir(Cllj~,Br 7W, L-,,-)-Dul3r
O.Vj
wt-BulIr 540
370
,
,
_
40, ThDr 2% Fn-0,NClTCJ 20, v4),NC,ll,Cl
W. sulflilta. it. jore,'LL,.
V1, Idontification of ominh.

14 1 (P.-A,~muhzjd Inc
M. Vrilela, awl I hVil.
01
the Wntificution o org, ji"~ii"Jes 1!1 whig tile rriietilm
Of the Stilride With f-f;rC%HjC0CHjl,'r (1), and tit(,, irutii~
Inrynatio,i of the suVw6jim b, mrilde to lcsg solAIC10, salt.
Refluxint: 6.0 rual -ttS (h,,~ 02*)'awl 0.03 m0e, I in 30
c
tn,. Mt-40H I hr. gave ~Br-, in
1141, (f, 6m mtvofl) wl'icll wa, tyawifornicif Into,tbe X.60"
milf, in; 17-'*, (froin B1011). Sit R I d
tit ; r w,,t, Prep
"
'j
'U
411
C0Ctj
G
5
1u-
1._
, tit. K.
.
r
'
11 CIO, SoY, -In. 12S.. Nf.' 11111111U~

I V-IZGMU, M. 9GASPARIC, J.
, ,- ~'~< - iu
Analysis of drugs. Cask. farm. 2 no.10-11:368-381 Nov 1953.
(GW 25:5 )
1. Of the Research Institute of Organic Syntheses, Pradubice-Ftybitvi.
9

E C E -9,4, M,
LMS, R.; VEORRA, M.
Leukkart 'a reaction of some ketone acids and their derivatives. Part 2.
[in German with summary In Russian]. Sbor.ChakhAhim.rab. 18 no.2:243-247
Ap '53. (KWU 7: 6)
1. Institut obahchey organichaskoy khimii Prazhkogo Politekhnicheekago
institute. (Ketone acids)

fz m
in 31 1 rx-mc
m"n of 1411q,ft"
4R. u-
.j.'it~jjijjty GI the 5.1ji!; fCC tji:-IL1~11-JI-f
in fli- erdvr given. Belt -,f th,
tAin,i liy r~luii,,g 10-311
H,
'COCH'Ilf Iml 001
5team bath, -tdcling 200 ~nri
rtmi 30 m,; i. in an lee b, ht -p 2! d ir-,
an aq. of thL bmnudQ, said. arl -wr- of incr-m
acirl, the kil"104 salts b- ppta. the bromide-i with 107 aq.
Naclot. 'Tbe ntctsw-y 2111fi(leg were prcpd. 4-.7, (ollows:
46 S. BuEr, 25.5 g. C~S(Nffj)i, and 60 mi. MeOH %4eve re-
fluxcd 0 ~rs., the Me.-Oll was distd, off from the stelm bath.
the residue mis dild. with H,-O to 80o-100 rul., and the s-j',n.
was heatcd tn the b.p., tre-Atpd with 20 g. NaOIT in 160 mt.
HIO, and Ixtiled 15 min. The mermptan layrT deposited
after C-3011rig Wg dt-Ared hY sAM-19 i"Vd-
r" ;
17 g. Na.OH: - A Wit"
as hmmd fn, h.p.. trealL

10"
142 -4 . qIq
5 '4-7. 13 11
.
1 p,. 713 ,13
!-A C!,

C ZEC17
n
q _a.
b _".W
ee.
Me
r't .L
stan w t m . t ull M Monc tMn
d
at room ternp., then IINV)tized with NaNO, in a flel wb3.
the mixt. t4--2ted t4ter 5 nlia. xvith V41famic acid, after 4
min. with a soln. contg. OWZ (fl-l-iCl &A of IIAW 2S0 ml.
H%0, 41led to the tuark j4 4 2~ml. volurnetric f.:osk, an4
mewured after 00 min. M - lfqAroM-

A

05. Identification of organic OampWilds. M.
Al. lure&k and AL_V,

arioivs alkylthittraniurn rwlts are inw3fif-ated for-
the Ideritification ol alkyl uct haintaoxilkyj group;
attached to 0 or N, Tim unknown mibrLinra h
hqatcd With 111; the a1hyl iollide formed 13,
Olaradvriscd by conversion to tho thhAroniurn
iodide! -Uld Ownct to itq jlicratf~ (rf. Chmi. Listy.1
1061, 45, I-Mand Ii',()) or anothersalt. 3: 5-Dinitro-'
benzmte~ are tiow.rocommentiml on account of thpir,
lower solubility in alcoliol. Other ~Mts examinf.,d
include styphnates, picrolonatcs, toltwne-p-sulphon-
pCTOillorates. ('rhis is a
ates, oxalaus, nitrates and
translation into German of a paper that appeared
in CUm. Li~~!v, 1952, 46, 722.1 D. R. Gr-Assos

LUIMS, R.; VECERA, U.
Iffect of Griguard reagents on the amide group. Part 18. Isomery of
pyrroline Lin Gorman. with silmmry in Russian]. Sbor. Chekh.khis.rab.
19 no.2:263-274 Ap 154. (MTRA 7:6)
1. Inatitut obahchey eksperimentallnoy organicheakoy khimii Pra%hBkogo
Politakhnicheakogo Instituta.
(Grignard reagents) (Pyrroline) (Isomerism)

p
Identi-rication of Orlanic Compounds. 1'. 77,
'H
UIL., I _t
(CuLLi,'J';'IjII jF ',dUV,'K "I" iGA , `~"- j.
L!"i 1~ j. , Yol 9, No. 1, Feb. 1954, Praha, Czechoslovakia)
6KIKH KHD-dClii- idlih .1 W!, . 1
SO: YonthlY List of East European Acce8sions, (E-AW, LG, Vol. 4
tllo. 5, May 1955, Uricl.

VECER-Al I.I.; WKES, R.
"Effect- of Grignard Reagents on the Anide Uoup-MLII. Izomery of
Pyrroline.11 T). 263. (CO=TIO71 OF CZE-C,--.0.;LO!.,,J-V CUKIMAL -7~1"u'am"ATTO11s.
SBORIIIK "Ll'30T. Vol. 19, No. 2, Apr. 195k;
Praha, Czech.)
So: Monthly List of East European Accessiom, (EIAL), Lc, Vol. ),,, no. 11,
April 1955, Uncl.-

th;OM4tOgfaPhy Of dyc Intennedletca. 111, Jdantiffi-
bon and x0parstlon or ..IA.
-1cla, jifl G -
paper chromatography. N 0A dy CL ]it ;;varl~ and
J111 Boreckf (Vkkiimnt.-t~ FardtiNce-
Uily Witw,955)i d.
e? --__jtrjgLXL Czech.). Chem.
"77
4.6 ff
610b.-Identification of Isomeric on~hraquinonesul mile
-disulfortic heids, tests for purity of tecli. Products, and 0143
'cour5e of the sulfonation procesit:9 are possible by means of
chromatography on paper (Wh4tinan no. 4) with Ht.-OH.
NHOH-HtO 2: 1:1 (1) or BtiOH-CJ-IN-1IjO 3, 1 -1 (U) as
solvents. Detection was c=ied out by fluorescence in
are
ultraviolet light. J?, vulnes In systerns I and H at 21'
given for the foilowing anthmnufacnesulfonic and-disulfonic
"Ids. 2 (a.65, 0.67); 2. (0.79, 0.72): 1.6 (0-04, 0,07);
0.15); 1.7 (0.14, 0.10); 1.8 (0.20. 0.35); 2.6 (0.19,
OM): 2.7 (0.10, OM). Bf. Ifudl=

't
.NA - - I mnif
15"P, - ~ " . ~. .! - , ~~ i
- -~, , - - . . . . ..
, , ". - t~ -1
~ i; ;~ I -~ 11 ~ I I . !, -. r - . '.
-F. ~; , : --. . I .~ - c , .,- ~ li~ . v rV, I.' MA

Czechoslovakia/Analytical Chemistry - Analysis of Organic 8ubstances, G-3
Abst Journal: Referat Zhur - Khimiya, No 1, 1957, 1280
Author: baz%4i I and Petranek, J.
Institution: None
Title: Identification of Organic Substances. X. Identification of SulfideE!
Original
Periodical: Chem. listy, 1956, Vol 50, No 2, 240-245 (published in Czech); Sb.
chekhosl. khim. rabot, 19561 Vol 21, No 4, 912-919 (published in
German with a summary in Russian)
Abstract: During the investigation of the derivatives of thioethers, the proper-
tier, of the suifylimines (I) prepared by the reaction of organic sul-
fides (II) with the sodium salt of N-chloro-p-toluenesulfonamide
(chloramine T) (III). The effect of the solvent and reaction time on
the yield was studied with the type-substances, dibutylsulfide and
dibenzylsulfide (IV). The greatest yields of 1 (75-87%) were achieved
as follows: 0-005 M solutions of II and III are mixed in 10 ml CH30H,
the solvent is distilled off, and the residue washed with 5 ml of
Card 1/3

Czechoslovakia/Analytical Chemistry - Analysis of Organic Substances, G-3
Abst Journal: Referat Zhur - Khimiya, No 1, 19572 1280
Abstract: 2 N NaOH and 20 ml of water. 'The pr.~du:t is diBsnlved ir ID ml toluene
over a water bath, filtered, and cyclohexane is added u-nt,.j. t'ie' solu-
tion becomes ttj-rbJd, after which it is all-xwed to stand for crystal-
lization. Dibexizylsulf oxide and p-tr)ILuer,!F-~Bulf(.)i)amj.dP ar,_~ f.".rlned an
side products during the reacti.-on of IV with 111. Compo-iind-9 c-It, I
have also been prepared from the following II ( the melting vnirit and
eutectic point (EP) with standard substances such as acetanilide (V),
benzil (VI), phenacetin (VII) and cyanoguanidine (VIII), andthe in-
dex of ref raction of molten I (L. Kof ler and A. Kof ler ~ Mikrcuethoden
zur Kennzeichnung organischer Stoffe und Stoffgemischti, Irinnoruck,
Universitaeteverleg wagner, 1948) are given). For the d,~'.(--rm-.'.rjat;on
of the eutectic point the aub_gtap~es were mixed in +'be 1:1. Di-
methylsulfide, mP 158.5-1590, F-P with vii 1160, n182-18do D 1~5309;
methyl-ethyl, mP 131.5-132.5", EP with vii io6o n156-1580 D 1.5309;
diethyl, mP 144.5-145-50, EP with VII 109c" D16~-1670 D 1.5217;
methyl-n-propyl, mP 104-1050, EP with V-1 75(), EP with V 740 n-L27-1300
EP with V 770 1 -.)
D 1.5309; methyl-iscpropyl, mp 114-115.50, - n --'5-380
D 1.5309; methyl-n-butyl, mP 87-880., EP with vi 680, nIQ5-lor(o
D 1.5309; methylisobutyl, mp 120-1210, EP with V 810, .133-136o
Card 2/3

,-Z
Czechoslovakia/Analytical Chemls-rry - Aralys:~3 G-3
Abst Journal: Referat Zhur - Khi-mlyaj, Nc~ 1, 1957, 1280
Abstractz D 1 5217- c-.thyl.-L--pr-)pyl, mp 104-1.0.15".. EP w.!.+.-4 VT 7&D, L?p with V 740,
1 -Pr-w 6 -117~5"% EF v4tt V 750
.5
n 1.5-109; etbylia C.
n14o-1410 D 1,521:?,* ~~tbyi-r-butyl. n~p .87-88. FP W~' EP vith
..th V 63"
vi 670 n92-9 ~' D 1-53093 TOT 108-109"', EP w1rit V 7 0:-'
n120-1620 D 1.521'173 mp EP W-.1th V
D120-123c' D 1,5217; n-p-ropyilsoj~r:,pyl: mp Ep with V 72:,
n128-1290 D 1.5217; dj.ILSO-Drop1[.'I,, mp IVI ii.8.5, EP with V 7P
nl32.5-134.5o D 1.52173 prrpylfo,-J)1-,t-.1
m.-j 99-100-1, EP with VI 690,
EP with V 650, ,1()5 -1-07 -5'--' D .521-7; mp 10-2-1030,
-2'7 -f '~-07,
EP with VI 730, EP with V 70!7.1 Li, D 11C.Pro, ~ --3,~I)Utyl
,h VT 71.5c-., EP 6 D 1,522 ,'73 64
mp 96-97(1, EP wit
utyl, mp 64~~., EP w.-Ith VZ C: r', D'1.52i7,;
-b atyll
n
nibo-'102~' D 1-52173 iiisobut-4:1, mP 133..,--
MP 75-760, EP with vi 61-
164 -
1 4 -165-) D 1.1,953; is,)butyi-s-4butyl, mp
3 .50, EP with VII 105 n
95-960, EP with VII 73c'~ n 11-p-limc, D pentametb-ylene, MP-
148.5-149c', EP with-VII 109c, n17;)-174~- D 1.r,-1973 tjb~--nzyi, mp 192-
1930, EP with VTTT 1680 n220-2220 D 1-5.309."
Card 3/3

I .
I
VEG;-:F,A, M. - ide:-L'ification of or~-i-dc subst.--inces. X. ld~ntification of sulfide,~~.
p. 240, Vol. T4, no. 2, Feb. 1956
CE-E~d-IF,Z' LI-STY (Ce skos love risak amade,-.ie ved. Ch.2:-Acky uEt:--,,v)
Praha, Czech.
SOURCE: East European Accessions List (EEAL) Vol 6 No 4 April 1957

Uec, X'I //),/
CZECHO,SLOVAKIAj,Analytical Chemi.stry - Analysis of Organic G-3
Substances
Ab,i Jour Referat Mur - Khimiva, No 2, 1957, 48'20
J
Author gra..,
_Y
Title Organic Quantitative knalysis. VI. Micro-Determination of
Sulfur in Organic Substances
Orig Pub Chem. listy, 1956, 50, No 2, 3C8-311
Abstract The previously described method (RZbKhim, 1955, 2305,
49236) has been improved-, Use of a quartz combustion
tube (Grote W., Krekeler H., *aigew. Chemie, 1933, 46,
106) with a quartz partition and two porous plates
(temperature 700-7500) in lieu of! a Pt catalyst, increa-
ses substanti,,Llly the spc:~d of determination, since the
rate of 02 feed can be ruiced to 10-30 ml/min"te, and at
the came time corb~tatICJL IS COMPIe~e With all. tArPC'0 Of
substances and takes place evenly. Aboorption of the
oxides of sulfur i,; qoantuitantive over the temperature
Card 1/3 - 52

Anulysis of Organic 0-3
Subotanceo
Abs Jour Refcrat Zhur - Khl.rd~-a, NO 2, 1957, 4830
alum as an indicator, and with Compiexon III.
Ag wcol also absorbs t1ae haloj~Qns which iwty have a de-
trimental effect. It ic reconmended to replace a por-
tion of wool b- fresh one after I- analyses of subs-
tances containin-r, halo;~,,,:ns. _:overag,~ error of determi-
nation is 0.15, nea'a q--u--dratLc error is 0.19,
COTrIMLinication V, see ffillMlim, 1956, 68776.
- CIL
Card 3/3

"i'miatim 0 sil phu in ori~ante
-lf~ Itv f Ile 10

Separation and identifiption of the rearrangement prod-
'
ucts of bydra2obenzene. NWoilay M&a, 10i Gasparit
,
-
-
-
U I I d ja~-6.111 It -Nrf-7T1ZT_ ~Tru
r
M,17-777
T Ilk

(1957); cf. C.A. 51, 14691b--~PLNH~ (1,5 g.) tuixed with ~j tc.
21) g. dry sea sand, exposed 72 hrs. to a strearri of dry 110,
the mixt. made alk. with dry Nils, and ific baes extd. with
75 in]. Cj 14 arl(I mi A110, gave W)% of the
following, bascs identified LLS the liz derivs. (M.p., no). bentri-
dine. m. 30S', -; diphenyline, in. 280-11', xW*-* 1.5675,
o-Unzidine, rn. n'j'-' 1.571,*,- a-scmidim, m.
nl,'* I.G(M; and p-scmidine, m. 166% SW
1.6111. The mutual ratio of the bases was
0.84:0.09,resp. In adda -, PhN Ul and (PhIN: were found
among the Feaffange-ment products. w if Lldiick~

1A s tr: :-E2c( 1
7
Orr. r KVIL D,,terminacicn of
sinol"111- ~aai-lollnt brZ"111~( W Gfr;li[tL- CO
Au
F.l,-adlt; 1. hgy
I !; .,Fj! IS C~TI-i l,I,1 :I' 'll-ftZ 1-t.1 211d UIC
HI,_1 "r fillf :'I't In"'! by I the rA~'liui P.-L.1u, IS
v: ii."I, !:. dt'~ -. , ' 1o1% ' , ~~" '1,h lt~-
~:-k N ~- till !~f': - 1*1~ nirt."'A I, (.r &tg 0 Gl-
L~"C' LA or br; iL,5 LhQ perczntaz,- -i hai~s~twt, U1, ac-
ar Icy decrc~* 16111t, d 1-15 rig. sumple in 0 ~15 Ent./
f- 20- W mu. . .0-6 llj~ -A U. 2 U& fl'o,
-ill al. uf a t~ln Lmtg. 0A g. in 100 nil wann
MC(Al, and 4 nil, of a -I". 'MrIEF. 6 g~ in'loo I
w1 1~s HNlo, III, t, '-15 nil . and the A"ptiiin
.till ri laTE-f till :11.,v In"
'i

Identiti~ati6iotorgaziieconipounds. XXIV. Sep3littion
and Identification of sulfides b a r chromatogr!Lhy.
larornir PetrAriek ind v e tav org.
4~.2" e r
i n !-.,-P-ar= COS OV. em ly 5-,
v
u ice-Rybi v , zee
c M V.). -'"L'
21
I-Ifid
1270-82)(1058); d. C-4. 52, 13544b.-Org- sulfides' ay be
sepd, and identified in the form elf the -n r envnejul anyl-
5.4; ~e
sulfilimines (1) on paper impregnated with HCONHt using
C4H# or CHrcyclohexane as the moving phase. P-
OtNCsH4S02NHj, (5 g.) is dissolved in I g. NaOH in 10 ml.
H20, the soln- cooled to 10* and, before the sulfonamide Na
salt begins to sep., 17 ml. coot NaOCI soln. adJed (contg.
1.95 g. NaOCI and prepd. by passing 7 g. Cl Into 8 g. NaOH
in 10 red. HO and 30 *g. ice). The p-nitrobentmesulfochloril-
amida Na jail (11) is filtered off and recry5td - from &-6 ml -
RIO to yield 6 g. yellow crystals contg. 23.15--U%' active
'Cl and forming in 11,0 and MOB intensely yellow colored
IsoIns. 11 (200 mg.) in 6 mi. MeOll is added to 0.5 milli-
mole sulfide in 2 nil. MeOH, the mixt. allowed to stand 15
min., dild. with 20 mi. HzO, treated with 10 mi. 2N NaOH,
extd. with CHC13, the ext. (contg. 1-10 pg. 1) chromato-
graphed art Whatman No. 4 impregnated with 10% HCO-
NH3 in RtOll, the chromategrarn sprayed with a freshly
prepil, soln. of 0.7 g. SuCl, in 100 ml. 15% aq. TICI, and
the spots detected (in a 30 min. interval) by spraying with
1% p-MeNC,H,CHO in EtOH contg. 6% aq. HCI- I
.form yellow spots. The following R, values of the p-
-SRR' 3:2
0jNC,1:tS0,N. were found in C6Hd, QH4-
o'cyclo.3e;cane. and 1:1 Cjfrcyclobexane, resp., (R, R'.
RI values given)- Me, Me, 0.08, 0,02, -; Me. Et. 0.21,
0.08, 0.01; Et, Et, OX, 0.19, 0.05; Et, Pr, 0.57, O~35
0.11; Pr,Pr,0.73,0.55,0.24-, iso-PrJso-Pr,0.72,Q.63,-:
Pr,iso-Pr,0.73,0.S4.*--, Et,iso-Bu,0.72,0.53,-; Ht,
Bu,0.74.0.54,-; Pr,Bu,0.83,0.71,0.40; Bu,Bu,-,
1,1.tj 0.80,0.57; iso-Am,Iso-Am,-,0.89,0.75; hfe.PliCfft,-.
_; Et. PhCH3, -, 0.33, -; Pr. PliCIT2, -, 0.53,
'Bu, PhCH" -, 0.69, -; PhCH1, Phcll,, -. 0.0.
Ph, Ph, -, 0.86, -; Et, Ph, -, 0,56, -; Pr, Ph,
0.74, -; Et, p-toly], -, 0,74, -; Rt, o-tolyl, -, 0.77,
XXV. Identification and separation of allhad C C
alcohols7by paper chromatography. JijE ~rluc
--GS ii', and IfirrAlav Vetefa. Ibid.
Ci-C,3 ales. and some cyclancils2were successfully chrotnat(,~
graphed as 3.5-dinitrotiErz-o-aFes on Whatman No. 3 impreg-
nuted with 10% paraffin oil in cyclohexane. Newsysternsr,[
solvents contg. 14C0NH* (1) and HCONAfe, (11) were used
as the mobile phase. For preliminary information is rec-
onimended the system 16:4:4 II-MeOll-H,O where Ck-C,
ales. are in the frout and Cia-a ales. near the start. The
following systems are suitable for given ales.: 30:70 1-1110,
C,-C.; 50:50 I-H%O. Cr-C,; 70:30 I-H20, Cz-Cv; 1,
Cc-C,2; 10:10:1 11-hleOH-HiO. Cfr-Cls; 70.30 I-HA:),
cycilluOls Ct-C7:
Tile 3,5-dinitrobenzoates are prepd. by dissolving o.1 g.
ale. in I uil. C.ffs, adding 0,5 g. 3.64ChN),CJflC()C1 in 3
ml. Call, and I nil. pyridine, heating 30 min. oil alll
bath, letting cool, extg. with 5U% Kofl "ith adda. cf
H20 to achieve a quick sepn. of the layers, wa,,;hirlg
Call# ext. with portions HrD. 1:1 IfC1, and 11.0, ar.A
drying with NazSO#. The Caffs soln. is used directly f,).
Chromatography. Tile method is ah- sitimble frr s,pn.
and iflentification of higher fatty a1cs. u,.,ed in tile tt!.xtj1v
tnallur,
Distr: 4r'-2c(j
J-

/Rearrangement of aromatic hydraz compounds. t1iroslay
(Vtk-. us synth., -Pardubice-Itybitvi,
V-'# CM. list 52 f~7S:408(1958).-An extensive
Me ). y 7 :5
review in 19 chapters with 102 references. P.
-CL, M
Distri 4E2c(j)

CZECHOSLOVARVI/Optics - Opticcl Technology K-4
Abs Jour t Rof Zhur - Fizikn, No 9, 1958, No 21405
Author : Vocora 14.
Inst : -Imt-eirm-
Title tOhronologicvl Study of Anmouphotos
Orig Pub %Jemna moch. a opt., 1957, 2, No 3, 75-78
Abstract :The author oxmines the properties of surfnco systoris of
anmorphoto fittings end invectigztcs in particul-cr the de-
pondenco of the angulpr megnification on the an-la of inci-
doneo of the rcy md on the nnglo of tho pristi. A graphic
nothodis-proposc;d for detorriinption of optimm angle between
the prisms. The condition of perallolnoss is examined, end
the dependence of the coefficient of anamorphotos on the
angle of field of view is given.
Card 1/1

v F lC I . I ,
"r-
Convention of -nvlytic chemis'L8 in C-ottwaldclv.
P. 85 (Chejuicky Finumysl. Vol. 7, lic - 2, 1~7, Pr"ih,-, Czechuslovcllk-io)
Monthl.y Index of East Eurcpean Accessions Lc;. Vol. 7, nc,.. 2,
Felcruar.y 1958

VELFRA, M.; SNOBL, D.
-I-
"Organic quantitative analysis. VIII. Microdeterminati~n of sulfur in or-
ganic compounds. Mechanism of the formation of silver sulfate. In German."
P. 986 (Collection of Czechoslovak Chemical Communications. Sbornik
Chekhoslovat-qkikh Khimicheskikh Rabot.) Vol. 22, no. 3, June 1957.
Prague, Czechoslovakia
SO: Monthly Index of East European Accessions (EEAI) LG. Vol. 7, no. 4,,
April 1958

A
CZECEOSLOVA.KTA/Analytical Chemistry - Analysis of Organic E-3
Substances,
Abs Jour : Ref Zhur - Fhimiyaj, No 8., 1958, 249o4
Author : XIII. Vecera- Miroslav Friedrich Kurt
-i~ - j
XIV. ;-s-p;ff?Tff-JT-rT-'Vecera Miroslav
p
Inst : -
Title : Identification of Organic Substances. XIII, Use of Ion-
Exchangers in Organic Analysis. XIV, Separation and
Identification of Aliphtic Aldehydes and Ketones by
Means of Paper Chromatography.
Orig Pub : Chem. liBty, 1957., 51, No 2., 283-286, 291; Sb. chakhosl.
khim. rabot.. 1957., 22, No 5., 1421-1425, 1426-1431
Abstract : XIII. Formation of a solution of an acid on interaction
of the solution of the corresponding salt with a cathio-
nite (K.) is used for determi;ation of equivalence and
molecular weight of organic acids and bases. First a
difficultly soluble salt of the substance under study is
Card 1/3

CZECHOSLOVAKIA/Analytical. Chemistry - Analysis of Organic E-3
Substances.
Abs Jour Ref Zhur - Khimiya., 1-10 8, 1958, 249o4
the form of solutions of their 2.4-dinitrophenyl hydra-
zones (DPH) in benzene, chloroform, alcohol or I. The
chromatograms are developed with cyclohexane (1-1) satu-
rated with I. After volatilization of II the chromato-
gram is spia-yecl with a 1% solution of NaOH in alcohol;
DPH become apparent as brown, red or blue spots. It is
possible to identify 1-5 microgram DPH. Rf increases
with the number of C-atoms in the n-chain; A and K with
straight and branched chains have same Rf with equal n.
The presence of double bonds and OH-groups lowers Rfe
Part XII see RZhKhim. 1958, 14240.
Card 3/3

CtECHOSLUIAKIA / Analytical Chemistry. Analysis of Organic E-3
Substancos.
Abs Jour Ref Zhur - Khim., No 10, 1958, No 32229
tic absorption curves in the visible spectrum range, which
permits to detect V first of all, as well as IV by an indi-
rect method. The absorption spectra in the ultraviolet range
permit to identify I, II and III as bases and chlorohydrates
in solutions. The powder x-ray pictures of I, II, III, IV
and V chlorohydrates and aniline can be used for the identi-
fication of these substances. They can be identified also
by the polarographic curves of their interaction with HN02
diazonium salts of K, II and III, with W102 1-phonylbenzo-
triazole salt of IV and with nitrosodiazonium of V.
See report XIV in RZhKhim, 1958, 249o4.
Card 2/2

CZECHCSLOVAKIA/Organic Chemistry Theoretical and General
Questions on Organic Chemistry. G-1
Abs Jour: Ref Zhur-Khim., No 13, 1958, 43212,
Author Vecera Miroslav, Petranek Jaromir, Gasparic Jiri.
Inst
Title Rearrangement of Substituted Aromatic Hydrazo-
Compounds.
Orig Pub: Chem. listy, 1957, 51) No 5, 911-919; Sb chekhosl.
khim. rabot, 1957, 22, No 5, 1603-1612.
Abstract: A study of the rearrangement of hydrazo-benzene
(1), 2- and 4-r.-.ethyl-hydrazo-benzene (II, III), 2,2'-and
4,4'-dir.ethyl-hydrazobenzene (IV, V), 4-acetamido-
hydrazo-benzene (VI), N-acetyl-hydrazobenzene (VII)
and 1'l'-hydrazo-naphthalene (VIII), by action of a
solution of HU in alcohol, or of dry HCl in absence
Card 1/3

Questions on Crganic r-'riemistry
Abs Jour: Ref Zhur-Khim-, 110 13, 1958, 43212.
of a solvent, at about 200. The rearrangerx-n-.
products (RP) were isolated by paper chromatography,
purified by crystallization cud also by chromato-
graphy on silica gelirapregnated with dimethyl for-
namide, and were identified by color reactions and
fluorescence reactions. Among the RP were found
benzidine (IX), diphenylene (X), o-benzidine (XI),
o-semidine (XII), p-semidine (XIII), the corres-
ponding azo-compounds (Ia-VIIIa), aniline (XIV).
Listing the initial substance and isolated RP:
I, IX-XIV, Ia; II, TX-XIII, Ila; III, X-XIII, IIIa;
IV, IX-XIII, IVa; V, XI, XII, XIV, Va; VI, XII-
XIV, VIa; VII, IX, X; VIII, IX-XIV, VIIIa. Velo-
city of competing reactions, and proportions of
Card 2/3

P, InX r -~~
TV
7-11

J~;-. la': Lc.,%
and
p, r a t
jputm,
Z~Rk

A-)
.31;
Moz,11U.,T;v "neir ti I- qT- ',71 r-11 Larner,

J.
"Identification of organic comcom1i. XIIII. Idpntifiration of
anthraquinonesulfonin. acids."
074 (Institute of Applied F-hysics - Czechosolovak Academy of 3cience)
IT) .
V01. 51, No. 5, MaY 1957
SO: Monthly Inlex of East European Accession (Z2AI( LC, Vol. 7, No. 5, Nay

CZECHnSLOVAKIA/Analytical Chemistry. Analysis of OrGanic
Substances. E-3
Abs Jour: Ref Zhur-Khim , No 13, 1958, 43082.
Author X.-MQ_cgxa-MI=oajav-,__Pulusek Jaroslav.
XI. Synek Ladislav, Vecera Miroslav.
inst
Title Organic Quantitative Analysis. X. Micro-Determinatien
of Chlorine and Bromne in Organic Substances. XI.
Use of Cobalto-OPbaltic Oxide as.Combustion Catalyst
in Elementary Analysis.
Ori6 Pub: Chem. listy, 1957, 51, No 8, 1475-1481, 1551-1552;
Collct. czechosl. cher, cormuns, 1958, 23, No 2, 257-264,
331-333.
Abstract: X. 1-5 mg (detervination of Cl) or 4-7 rig (detemina-
tion of Dr) of the substance are used in the conbustion
Card 1/5

CZECHOSLOVAKIA/Analytical Chemistry. Analysis of Organic
Substances. E-3
,',,bs Jour: Ref Zhur-Khir.., 11c 13, 1958, 43082.
by the modified method of Grote and Krekeler, in a
quartz tube 580 nn Ion(; and 9 mr, inside diameter
containing two porous quartz plates, in a current
of Ck at 7500. If the substance contains alkali
metal a tenfold aniount of VIOS-is added. Liquid
substances are weighed in capillaries with ITH1110-,.
Combustion of the substance in effected within J
5-15 rUnutes after which the tube heated for an
an additional 5 minutes. The halogen is absorbed
as HC1 (HDr) in a U-vessel filled with glass beads
and containing 5 ml of %v' H40.L. For deterLLination
of Cl- the solution is neutralized first with
0.1 N and then with 0.01 N solution of NaOH, to a
mixed indicator (0.1~ alcohol solutions of methyl
Card 2/5
14

CZECHOSLCVAKIA/Analytical Chenistry. Imalysis of Organic
Substances. E-3
Abs Jour: Ref Zhur-Khin., No 13, 1958, 43082.
red and methylene blue 3:1) which has a grey
transition shade, 10 ral of freshly neutralized
saturated solution of HgO.Hg(CN)j. are added,
and after 1 minute the titration is carried out
with 0.01 N HkSoy. to the initial. gray shade
(Viebock F., Der., 1932, 65, 496). Dr -is deter-
rained by titration of exactly neutralized solution
with 0.01 N solution of AgN03 in the presence of
an adsorption indicator (0.1% aqueous solution of
Drilliant Yellow) until the yellow-green color
changes to orange Whnim, 1955, 46100). A
detailed description is given of the sklection of
optinal conditions of combustion as well as a
conparison of the proposed procedure with the
Card 3/5

CZECHI)SLOVAKIA/Analytical Chemistry. Analysis of Organic
Substarices. E-3
Abs Jour: Ref Zhur-Khim., 110 13, 1958, 43082.
undergo quantitative cor.,.bustion at about 600
Catalytic activity of CojOt~ is not decreased
by the action of halogens or oxides of sulfur,
and therefore the same catalyst filling can be
used for several months. Preparation of cata-
lYst: to 15 g asbestos and 10 g Co(NOj); -6Hj0
are added 50 ml water and 5 drops of concentrated
NH40H, after which the mixture is 0evaporated to
dryness and calcined at about 500 .Analyses~are
carried out in the usual manner. Combustion of
11-15 mg requires only 5-15 minutes. Halogens
and oxides of sulfur are absorbed on tZ-wool at 600
oxides of nitrogen -- on MnO Cormiunication IX
see RZhKhim, 1958, 4320.
Card 5/5

C2',ECHOSLOVAKIA/Analytic Chemistry - Analysis of Organic E-3
Substances.
Abr. Jour Ref Zhur - Khim-iya, Ito 14, 1958, 46438
adjust the results of H and N determinations.
The method of linear regression is the most suitable
statistical method for the evaluation of the accuracy;
by that method it is possible not only to describe the
accuracy, but also to make apparent the constant and
regularly variable errors&
See report XI in RZhKhim, 1958) 43082'
Card 2/2

-PZ

VECEM, IN. ; MRANTF, J. ; Gj',S~ARIC, J.
--------------
"Identification of organic compounds. XVIII. CbromatoE-raphy of aromatic
hydrazo conpounds.11
P. 1553 (Chemicke ListT, Vol. 51, no. 6, Aug. 1957, eraha, Czechoslovakia.)
Monthly Index of East European Accessions (EEAI) LC, Vol. 7, No.6 June 1958

-- VECERA., 14. ; U.SPARIC, J. ; S.FE-1h,-K, A.
"Identification of organic conpounds. XIX. ~-Iicroidentificntion of the lower
aliphatic alcohols, O-alkyl and N-alkyl Lroups by paper chromnatography."
p.. 155h (Chemicke Listy, Vol. 51, no. 6, AuE. 1957, Praha, Czechoslovakia.)
Monthly Index of East European AccesBions (&Ii) LC, Vol. 7, No.6 June 1~58.

CZECHOSLOVAKIA / Analytical Chemistry. Analysis of
1 Organic Substances.
Abs Jour: Ref Zhur-Khimiya, 1958, No 20, 67346,
Author, : Petranek J., VecerajV1j_..-
Inst : Not given,
Title : Organic Quantitative Analysis. XrVI. Calorimetrical
Determination of Small Quantities cf Aldehydes.
Ori,(,-, Pub: Chem. listy, 1957, 51, No 9, 1686-1689.
Abstract: Aldehydes (A) when condensed with resorcinol W
or with fluoro-lycine (II) in concentrated H2SO4
C~
or HC1 give very weak and poorly reproducible
a I COOH (III), that con-
colorings. In lacial CH3
tains 10-20 vol. % H2SO4, A reacts slowly with I
and sufficiently fast with II, even at approx.
20o, resulting in the intensive and stable yellow
and orange colorings. Since III should not con-
Card 1/3
30

CZECHOSLOVAKIA / Analytical Chemistry. Analysis of E
Organic Substances.
Abs Jour: Ref Zhur-Khimiya, 1958, No 20, 67346.
Abstract: tain A ' it is being purified by fractionation
with 5% 11 and 5% concentrated H2SO4- to 5cc of
very dilute solution of A in III, 5cc of III, con-
taining 20 vol. % H2SO4 is added, the mixture is
then cooled to 18-200 followed by the addition cf
lec of 1% solution of II in III, After 10-30 min-
utes, the photometric readings are taken using
either dark blue or blue-green filters respectivly.
The Bere's low is being observed for the cases when
5cc solutions contain 26.6 - 265.8e of n-toluene
A, 4.2 - 29.9 ~of vinyline, or 4.1 - 30.6 Wof
piperonal. The greatest intensity of color de-
Card 2/3

C~ZECHOSLOVAKIA / Analytical Chemistry. Analysis of E
Organic Substances.
Abs Jour: Ref Zhur-Khimiya, 1958, No 20, 67346.
Abstract: velops after 10-30 minutes and the color becomes
stable after 25-90 minutes. With aliphatic A,
II forms a color unstable products. The stand-
ard error is + 2.75%. Alcohols, carbonic acids
and their esters do not interfere, however, in the
presence of water the color intencities diminish.
This method Is applicable in particular for the
determination of aromatic A. Some of the latter
could be identified by means of spectrophotometri-
cal curves obtained for their respective colored
products. For Part XV, refer to Ref. Zhur-Khimiya,
1958, 57232.
Card 3/3
31

CZECHOSLOVAKIA/Analytic Chemistry. Analysis of Organic E
Substances.
Abs Jour: Ref Zhur-Khimiya, No 22, 1958, 7376o.
Author Miroslav Vecera,, Antonin Spevak.
Inst W0,99W04%
Title Organic Quantitative Analysis. XVII. Determination
of Little Amounts of Chlorine and Bromine in
Organic Substances.
Orig Pub: Chem. lity, 1957) 51, No 11, 2037-20110.
Abstract: A rapid, simple and universal method of determination
of little amounts (0.01 to 2e,,) of Cl and Br in
solid and liquid organic substances is proposed.
1 to 15 mg of the substance is burned in a Oi, flow
(15 ml per min.) in a Pt combustion boat or glass
Card 1/3

CUCHOSLOVAKIA/Analytic Chemistry. Awdysis of Organic E
Substances.
Abs Jour: Ref 2hur-Minlya, No 22, 195A,, 73760-
capillary placed in a Si tube with Idiaphragm and
heated by an electric stave to 800 . The producing
hydrogen halide is absorbed from the combustion ga-
ses by 2 ml of %-Ual H40A solution. 2 mL of 0.3%-
ual I~g (SCN)Z solution in CHjOH and 4 ml of 6%-usl
NHqe(so ~).4 solution in 6 'n.3;M*A hrelaMeAUrithe
absorbing solution, which is photometered at 470 m/.i.
The duration of combustion is 10 to 30 min. Liquid
substances with small contents of halogens can be
burned in calorimetric boubs. The reducing minerali-
zation with metallic Na and combustion in 02 atmos-
phere in a flask yields incorrect results. The cali-
bration curve for the photometric determination of
Card 2/3

V6~CERIJ /r,
I
CZECHOSIMIUM/Analytical Chemistry . Analysis of Organic E-3
Substances,
Aba Jour : Ref Zhur - Khimiyaj No 2, 1959, 4378
Author : Vecera, Mo, Synek, L.
Inst :
Title : Qualitative Organic Analysis, XVII19 Microdetermiimtion
of Carbon and Hydrogen UsinC; Cobaltous-Cobaltic Oxido as
a Combustion Catalysts
Orig, Pub : Chem Listy, LI, No 12, 2266-2274 (1957) (in Czech)
Abstract : Z simple and reliable micronothod has been developed for
the determination of C and H in orpnic substances. The
combustion is carried out in a quartz tube of 300 "xra
length and 9 ma I, D., usinf; CO 04 on asbestos (thiclwcss
of catalyst bed 2,5 am) as catXlst (RzhXhim, 1958,
43082). A 3-5 ma satTle is ignited in a Pt-dish in a
stream of 02 for 3-5 min; for substances havina Iii(ji va-
por pressures, 5-10 min are required, The hidi
Card 1/2

Distr: 4132C
(,.,oQu&n11(itIYo organic nnalysis. XM.' A rapid 5 -bjm.,-
L.. .pj . I .
h
y&ogn microdete n 11. M. V D. nobl, and
t aua . Ila u &C ybitvi,
r1c kr" SM. 9.1 9-27; cf. C~4. 51. 16 b;
and H
2$1 19712 micromcthod for the drta. a
u3cs ~CoO_ -as a combustion cataly%L The app. for the com.
bustiV-57that for removing the other products, and the
absorption chambers for the H and C Is described. The
accuracy Is equal to that of other methods. IV. Micro.
determination of sulfud M. Ve&ft and D .tobl. INd.
28-40~-This is a-r-apM and accurate micromethod. for det
S. The substance is first burned in a stream of 0 at 700
after which the S oxides are trapped in Ag wool. Ile trap is
heated to 450% the AgtSOj is extd. with HIO and the Ag is
detd. by potentlometric or visual means. The mechanism
of the reaction of the S oxides with Ag Is explained. This
method Is co pared statistically with the Zimmermann
method (C-4. 47, 2CS&). Also Sk rapid colortmetric method
for the dctji. of 0.005 to 8% 8 in org. and inorg. qlaterial is
described. XV. Microdetweninattem of chlorin6/and bro-
mine in 0 M. v an
method for detg. u an r
Is a rava
B
Jn ors. materials. The s=ple Is burned In a quartz tube
S and the halogen Ions are then absorbed in HA. The a is
then detd. by the Vlebftk wetbod (C.A. 26. 32M and the
Br argentometrically with the aid of an adsorption Indicator.
The findings were covapared with thoge of K-;- and Resch
.59 (c.4. 46, 495M) and Schaniger (C.A. 50, 1443M, A'
-method Is described for detg. small amts. of Cl and Br in
Rix. matcrials

Identification of AMamc_cqrp_p9Mds. XXI- *1,.g choice
' / .
a -chro t b
Of
L>er n- to, a ic
-of solvent systems for
d J'~
orpnic coxpo=d![. ajpari~ azfj I. (Rr
f
schungsiast. organ!sCU_-- r!2 Ar U tt ybitvi,
Czech.). Alikrochitts. Acta 1958, 68-91; cf. C.A. 52,
13544b.-Practical examples are given to show how org.
compds. can he sepd. by mrans of paper chromn(ography,
One 6 not limited to 4,tested" solvent systems, but can use
It lim h"n
new suitable systems as the occasion demands.
found best to abide by the rules of soly. of org. compds.,
provided the compd. to be chromatographed is quite sot.
n the statinuary phase but less sot. in the mobile phase.
By altering the. stationary phase (water, nonaq., polar sot.
.vent, nonpolar solvept) or the polarity and compu. of the
mobile phase, the migrution of the stains in the chromato.
gram can be influenced, selected Rr values can be obtained,
and in many cases it is also possible to secure a desired suc.
cession of the compds. on the chromatogram. Since the
soly. of org. compds. depends on intermol. forces, the prob-
lem In connection with structural influences appears very
complicated and must be solved individually for each case.
Moreover, the soly. characteristics can be affected by using
reactive solvents; for instance the compds. can be con-
verted into water-sol. salts. Complications may arise be-
cause of the dissocn. and hydrolysis of ionizable compds.
The following are among thechief factors, which maymake a
ible: functional groups, their number, polad
sepn. possi I
Y
relative position, their basicity or acidity, C-atom no.
.
homologous corapda., later- and Intmmol. H bonds, steric
factors.ete. It then depends on the type of solvent system
selected, which of these factors am preclorninnat and which i
cun be neglected or eliminated. It the soly. differences are
too slight to permit good sepns., the compds. to be -pd.
should, if powlble, be converted Into deriv3. whose struc-
V1 tural differences arS more pronounced. H. W.Ii=m

C.

Avr
.. XTX. 111drodeterail-
ali-~i
f
l
h
d
~~

na
I ftxv
a
av iz~c
Mjos
a, Y _an
_Au Hon
Pardubice RY 1tv
rd (v ~zkumnt tfista lo ~-g We3
:
IV W
. I d. C-A. 52, 431)3g,
,
Thwinicrodetri. ofYCMund .1kyl u.ops Cj-C4 was tnodV
fied in that the interfering compds.were adsorbed on dry,
Aartar emetic on Bilica In a modified app. according to Shaw'
!(C.A. 41, 7810i) Instead of the usual absorption In liquids.'
The detn. is as precise as the methods olinicroelernentaryl
r-I
l
i
XX M
hl
ana
s.
orinc
croassay of c
n organic Comi
)s
-
J
ds; by combuction In an e
16he
Alrolifix V

.
F-
,
.d javoslay, Buluk A" I 1".'-in twi-ir~
=
mj
.
,
- IC
-
*
-d-M
i-tff
i
o
W m
In a strestri
c
For
Is hea
ed at 720
of 0 In an empty tube (PE
51, 10207b), Cl Is absorbed fil
dil
If,%. and Cl- t1trated with O.OIN AgNO. with brill
!an
yellow as adsorption Indicator. The possible source
er
w
o
t
ti
i
ti
t
d
ti
ti
l
f I
d
l
i
r
r9
err
nves
e
a
eva
on o
s
ca
ua
, an
s
ga
rmfts wq prrsented, L. J. Urhinck
1~9

Rfatr,: 4E2c(j)
.4 Identification of irpudc compounds. XXV1. X-ray t
diffmcdon patteme of SIS-dwkyl N, toWSWOUPBUI*
inifnes. Dobrodav 9nobl, Vka "=1 Mir i
Petrinek, and MuUs11V-17Ye&g (V - V,
Pardubic~WMM-
"Rom. I
"17
(1958); Cf. CA. 60 16m; 52, 135M.-- Y.
Ix M
diffraction patterns tire suiUl; for the IdentIficatio o
n f thio
A wn-by-,
_jOers ter conversion to the title compd3.," is 0
"tiation o
diirEt f 23 studied derivs. This metb
od Is at
than by means of m.ps., eutectical temps.,
and molten
mass nsand the derivs. donot require a high dcate of purity.
Values of the interplanar spacings d, as detd. by t4a usual
AecWque, In org. CoMpdo. havjax a.bIx eletlientao-Ca
and low symmetry can be distorted owing to 'afterdoslaod,
Aus showing considersiAe deviations from tAbuilt;,avalues."
JO The sources of errors and werkinj technique, Wcd
&owf; 06ptrelon is recommended. L,

Distri 4E3d/hE2c(j)

of organic compotin XXVI. ftl -iiiinda~"(; N'-al I C 0"1'- fift4-tv-f-l-, t lip vcnt
0
Friedel-Crafts acylation for the identiflcntion of alkyl UL
'
!
'
dfld
? evapd. and the residue tmated %vith the uppropri,t(' Mt-
"
m
es
G fa, and Mtrnslav
l
h
-
"4~
" xcnt in II.SO, find EA011, x
N.-
.
-TMr
I'uruut)
Rek (VA -
i t~
~
c im-HySHVI,
,e Off in NaOll or C014NN(S-10 or oxit!i7.vfj 1hr. %vith

c
C.A , 53, pme- 6 fill. 30
/"" 11101 ill 5 ml. At:D)l on the sicyri hoah wid 4:1,1.
Alkyl aryl sulfides are firit acylated with AcCI and AICI, withliOnd.11,0.
and the resatting duivs. of PhAc are trim-forun(A to 2,4- (EtOlf, AMil or A(W,U,

-lines, or are ox
o
% idized to sill.

f the nximes cyck-hexanc), and f milfollfni
IML sulfides ivere prcpd. by methylation of thici- '11C. Ph, M,6.5-7.5', 121', 128-!)';
phenols Ivill, MeIS04' and the higher alkyl aryl sull'ide-i are 56.3*/2.9, JEW, 90', 115 Pf, Ph'
made as follows: 7 g, Na ivas (Wqo!vcd in 1,50 nil. EtOJI l&9.&--60,5*, 75-5.5", F6,15.7.5"; ieq-Pr, Ph,
,
34.5 nil, a-MeCellS11 added with stirring and then 40 g, 75.5', Ate, (1).
Mz2CIIIAr, the mixt, rt-fluxed 2 hr- oil tht! steam bath, the 80'. -; Ft. 1, Ol."V/1.6, Isr)" 91" ---; Pr' 1,
solvent distd., tho rc5idue dissulved, iva~ljcd with 61,*; aq. 68.2'11,1, 171-2', !)1', -; ir-Pr, 1. 1112',
Naoll, CWCd with Na:SOj, and distd. to yluld 39 g. product. -; .1fe. t-Ir,C,-Ij, (11), OL5'/2-2. 211-15*, M~', Ft,
~To prep. the ketones. to 0.8 q. AlClj in 5 n21. CJIC13 was IT, 62.1'JLI, 95',
added dropwisc 0,5 g. AcCl and, ~vitjj co(Iling, 0.5 ml. of the OV, -; ij~-Pr, 11, 65.2'/IA,
stillide in 5 ml. CIICJ~t, the mixt. allnNyed to stand I lit. x-ray diquims were also wul ror Ili,
It TtH)ln Wmip,, poured over ice and 5 nil. I ICI, Vic org. layer' M.
4.

CZECHOSLGVAKIA Analytical Chemistry. Analysis of E-3
Organic Substances.
Abs Jour : Rof Zhur - Xhim., No 10, 1958, No 32220
Author : Jiri GaBparic, 1,tiroslav Vecera, Miroslav Jurecek
Inst :
Title : Identificstion of Orgonic Substances. XVI. Identifica-
tion of Sulfidev.
Orig Pub : Chem. listy, 1957, 51, No 4, 660-666; Collect. czechosl.
chem. canimuns, 1958, 23, No 1, 97-io4.
Abstract : Continuing the similar study of dialkylsulfides (DAS)
containing the alkYla 01-C4 with straight chains, bromides,
picrates and perchlorates of dialkyl-n-bromophenacyloulfo-
nia (I) fron. 17 DAS-s were obtained; they contain one or
two C3-04 alkyls with forked chains (with the exception
of tertiary butyl); their melting points, by which it is
recommandod to identify the correapondin,~ DA~"-n, worc do-
Card 113
jN 3

CZECHOSLOVAXIA / Analytical Chemistry. Analysis of E-3
Organic Substances.
Abs Jour Ref Zhur - Khim., No 10, 1958, No 32220
termined (melting points of perchlorates - from 69 to 1700,
those of picrates - from 80 to 1500). 1 is produced by the
interaction of the DAS with n-bromophenacylbroinide, which
takes from 20 min. to 8 hours time; a DAS with forked
chains reacts more slowly then a DAS with straight cahins.
The picrates and perchlorates of higher DAS honologues are
produced from bromides without separating the latter from
the reaction mixture. It is recommended for a more complete
identification of the DAS-s to use the x-ray pictures of
powdered I perchlorates and the eutectic temperatures of
their mixtures with some stnndard preparations. The
melting points of bromides, perchlorates and picrates of I,
as wall as x-ray picture characteristics and eutcctic tempe-
ratures of I perchloratos obtained from the above mentioned
DAS-s are presented, See ropot XV in RZhKhim, 1958, 32229.
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CZECHOSLOVAKIA/Anulytic Chemistry - Analysis of ()rganic E-3
Substances.
Abs Jour : Ref Zhur - 1(hiniya, No 14, 1958, 46452
Author : XVT_1 --Miroslav Vecera, JiriBorecky, XVIII - Mroslav
Vecera, J-aF-omEr_Petranek.-, Jiri Gasparic. XTX - Miroslav
Vecera, Jiri Gasparic, Antonin Spevak.
Inst
Title Identification of Organic Substances. XVII. Identifica-
tion of Anthraquinone Sulfoacids. XVIII. Chromatography
of Aromatic Hydrazo Compounds. XIX. Microidentification
of Lower Aliphatic Alcohols and O-Alkyl and N-Alkyl
Groups by Paper Chromatography.
Orig Pub : Chera. listy, 1957, 51, No 5, 974-976; No 8, 1553-1554;
1554-1556; reports VII, VIII, Collect. ozechosl. chen.
cormnun., 1958, 23, No 1, 130-133; No 2, 333-335-
Abstract : XVII. The benzylthiuronic (I) and 1-naphthylmethylthiu-
ronia (II) salts of mono- and disulfo acids of
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CZECHnSLOVAKD~/Analytic Chemistry - ;M--lYsis of Organic E-3
Substances.
Abs Jour Ref Zhur - Khimiyan, 11c 14, 1958,46452
anthraquinone are suitable for the identification of
the latter. The ultraviolet spectra of these salts are
close, but their melting points and eutectic temperatures
in mixtures with dicyanamide are different. The salts
are precipitated by mixing aqueous solutions of reagents
and in the majority of oases, they are recrystallized
from 30 to 80%-ual C2H 0111and some from CH3OH-4-(C113) CO.
Melting points measurea under microscope or in a capi2a-
ry and the eutectic temperatures of mixtures with dicyan-
diamide (about 1 : 1) of I and II of all isomer anthra-
quinone sulfoacids are presentedi I is more suitable for
the identification than III because it melts more dis--
tinctly.
XVIII. The aroratic hydrazo compounds (III) are separa-
ted chromatographically and identified on Watman paper
tio 4 treated with 25%-Ual dimethylformamicle solution in
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CZECHOSLOUKM/Analytic Chemistry - Analysis of Organic E-3
Substances.
Abs Jour Ref Zhur - Mimlya, lio 14, 1958, 46452
in alcohol (IV) or lOdp-ual solution of form-amide in al-
cohol IV) and dried. From 0-5 to 200 r of the sample
in 0.1 to 1%-ual alcohol or ether solution is put on
the paper. It is developed by the descending method at
21 t 10 with cyclohexanc or benzene. The dried chrona-
tograin is zprayed with 1%-ual solution of n-dimethylani-
nobenzaldehide (VI) in 95 parts of alcohol and 5 parts
of concentrated HC1. At this occasions the III-s re-
group into corresponding dianines, which together i-rith
VI yield products of characteristic color and fluores-
cence presented in the report. The values of R 8 of
III-s are also presented. This method permits fo chro-
m.tograph several hundreds of Y of the substance and
to identify 0-5 Y of a III*; it can be used for the
control of the benzidine regroupatinn at industrial sca-
le. For that purpose, 10 ml of the roaction solution is
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CZECIIOSLOVAKIA/Analytic Chemistry - Analysis of rrganic E-3
Substances.
Abs Jour Ref Zhur - Mhimiyaj No 14, 1958, 4,6452
alkalized with 5 ml of 50%-ual KOH solution and shaken
with 5 ml of C6H6* From 10 to 30 ml of the extract is
put on the paper soaked in V, it is developed in a test
tube with cyclohexane by the ascending methcd and treat-
ed with VI solution. The chromatographic method is re-
conjri nded also for the purification of 111! 60 g of si-
lica gel (VII) is saturated with 24 m-1 of IV, suspended
in petroleum ether (VIII) and a column 25 mm in diancter
is prepared. 2 g of the substance is dissolved in 1 rl
of IV, VII is added and the mixture is transferred on the
column, which is developed first with 200 ml of VIII and
with the mixture VIII - C6H6 ~C41: 1) after that.
XIX. The lower alkyl groups - C3) are idenfified in
the shape of corresponding alkyl-3,5-dinitrobenzcates
(IX)a In order to convert alcohols (X) into IX-s, 0.1
ml of pyridine (XI) and 1 ml Of C6H6 are added to 10 ral
Card 4/6

CZECHOSLOVAMIA/,'malytic Chemistry - Analysis of Organic E-3
Substances.
Abs Jour Ref Zhur - Khimiya, No 14, 1958, 46452
of aqueous snlution of 5 to 50 mg of X, after which 11 g
of K2CO3 and the solution of.0-5 9 of 3,5-dinitrobenzoyl
chloride (M) in 2 ml of C6116 are added to it at cooling.
After having shaken it 3 minutes, IX is extracted with
ether, the extract is washed with 1%-ual H2S04 and water,
and ether is distil-led off. In the case of water-free
X) 5 to 50 mg of X are dissolved in 5 ml of C6H6, 50 mg
of XITI and 0-3 ml of XI are added, all is boiled 1 hour,
the benzene solution is cooled, washed with 2G~-ual NaC11
solution, with water, with 5%-ual H2S04, and again with
water, and benzene is distilled off. In order to split
the alkyl. groups off the alkoxy compounds and alkylami-
nes and to obtain IX-s, I to 2 (2 to 5 correspondingly)
mg of the substance is boiled 1 hour with HI solution in
N2 flow; the alkyl iodides are absorbed while forming
by the suspension of 3 to 4 mg of Ag-3,5-dinitrobenzoate
Card 516
Card 6/6

CZECHOSLOVAKIA Analytic Chemistry. Analysis of In-
or,~anic Substances.
C?
Abs Jour: Ref Zhur-Khimiya, No 18, 1958, 6o643.
Author M. Vecera, L. Synek.
Inst
Title Quantitative Organic Analysis. IX. Microdetermin-
ation of Sulfur and Substanccs Containing Bariwn,
Lead, Silver and Magnium.
Orig Pub: Collect. czechosl. chem. communs., 1958, 23, 110 1,
133-135.
Abstract: See RZhKhim, 1958, 11320.
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81