SCIENTIFIC ABSTRACT LAZAREV, A.F. - LAZAREV, A.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000928910016-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: March 13, 2001
• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

ACC NRi
EWA(h)/EVIT(m)
Amue!)5i-j Monograp~r
UIV
I. M.; Zhemv, V.- S.; Lazarev,, A. F.. Perov, N. L.; TimDfeyev, A. A.0
COTS
s fbr recording and investig~tAng ionizing ragati h dbook (Apparatura.
IM -, 94 an
gistr=1:1 r-.Taffiew a spravochriik) Mscow,
Atordzdat, 1965. 429
illus., biblio. 4500 copies
p.
printed.
TOPIC TAGS: radiation dDsimetry, ionizing radiation, nuclear physics 'apparatuss.
..8cintillatOr.photomultiplier,, gas dischargp counter,,ionizaticn,chanber, ram----
-dosimeter, radiometer, spectrometer
TURPOSE AND COVERME: '1his handbook is interlded for research physicists in the field
of d-osinietrics and,engLneers and scfenticists dealing with radioactive sources of
radiation.: It nkay also be useful to persons conoenied with'the development, opera-
tion, and maintenance of dosimetric, spectrometric, and radiometric equipment.
The book deals with Soviet experimental nuclear physics instruments, equipment,
photomultipliers, saintillatots, Geiger-Mieller counters, ionization chambers, etc.
Characteristics of instruments for individual dosimetric control, mearurements of
doses and dose power, determination of the contamination of working areas and
waterby radioactive substances, aerosoldevices, single and multichannel pulse
analyzers, and others are described.'-
TABME OF COMRWS [abrldgedl!
Foreword - 3
C,3rd 1/3 UDC: 539-107.5

L 26391-66
ACC NRi M025517
Introduction 5
'Ch. I. Asseirblies and units for the detection of ionizing.radiation 7
1. Introduction - 7
2. Ionization chairbers 8
3. Gas-discharge counters 12
-4.-'-Sciritillators -..;--37
5. Photomultipliers - 53
-,Detection, units for ionizing radiation 75
Ch. II. Units and devices of electronic equipnent for nuclear physics 94
-1. Introduction 94
2. Structural eleuents of electmnic-physies eqviprmnt 96
3. Anplifier units and equipuent. - 105
4. Anplitude selection equipment and units and auxiliary, units 116
5. Timselection equipment and units and auxiliary units 146
6. Electric sigial conversion equipment and units 170
7.- Scaling;equipnent and units 178-
8. Tim ffeasuring units - 202
9. Intensity rreasureront equiprmnt and units 204-
10. Output equiprmnt and units, control units 225
11. Power supply units - 237
.12. Mnitoring units 266
Card 2/3

L 26391-66
ACC NRt AV5025517
13. Auxiliary devices - 272
14, Pulse analyzers --276
Ch. M. Dosiimters 321
Ch. IV. Radionetem '339
01

IZOTCV, V.K.; LAZATMV, A.F.
-r- 7. - -*
Stimulating effect of the somatotropic hornone on immunization
with tiLk-borne encephalitis virus. Vop. virus. 10 no.3s280-
282 Ybr-Je 165. (MIRA 18:7)
1. Institut poliamiyelita i virusnykh er"sefalitov AMN SSSR i
Voesoyuznyy institut eksperiwntallnoy endokrinologii, Moskva.

LiSturibriltion of
e Jr :-,r,
hormz;nea of the hypophysis. Prncull, endok. I
73-'/' 7ii-Ag A I
V s e 3 Oy cl z ny~,, e ~ 1-,p e rime, I tz. 1 ~ r,-,- :C 1, r,,,.~ .r
~6A. Vs--yllkova. M,,)Skva.

IAZAU,,ill A.F.; ELO'I'GV,, V.K.
~Xfcct of antiseri= to the growth hormone on Crocker~s
i-,erca-ul. Biul. eksp, biol, t med. 60 no,9:99-101 S 165.
(M:RA 18:10)
1. la-Altut po-lianlyslita i viruspykh entsefalit(rt AVIN SSSR,,
140SI'va.

.,L,'ZA.RE'V, A.I.,inzh.
Using propane-butanfj in welding pipelices. Mont. i srets. rab. v.
stroi. 22 no.12:16 D 160. (Mrqk 13:11)
1. Treat Basheantekhmontazh.
(Pipelines--Welding) (Gas welding and cutting)

IAZAREV - A. 1. . :Lnzh.
Welding tip operating on propane-butane. Svar. proizv. noel2-33
D f6le (1.',IR& 14.12)
1. Trest 11-Bashsantekhmontazh".
(Gas welding and cutting-Ecui ent and supplies)
. PM

STM
71,7-719i.-As in and s~lutwn klil (,,rm-. the
6ngly etarg~d t~- R.tD,,. ~UL- ll~" f,==s th--
daubiy cilargcd Sj,,O. ' hi: Utt~r cu a L.,t rctaired oc
Quicinitej whit, pasic-'i through unadvtb~'t-
The activa gtoorA a catblltift,4 in txacr of &-
crewing adsarb",,, 'Mcr kir Mr. afe; .,-Z%-Qft -
< -CO, f! < &Q4' '010,
VarLms anloni'vi ad&,rb Nlof.) ", and Rec)" Poorly
In aMalmo ffuln., wh-dit ft; ";zI Ile U prt-fete";
#611v PAAIirf"t her;Vlge od flUt UktA(Cr StAbilitV 0

LAZARE.V, A. I.
Dissertation: "A New Analytical Reaction of Rhenium and Its Isolation by the Chromato-
graphic Method." Cand Chem Sci, Novocherkassk Polytechnic Inst, Novocherkansk, 1953;
(Referativnyy Zhurnal--Khimiya, Moscow, No 5, Mar 54)
SO: SUM 243, 19 Oct 54

LAZAREV, A.I.
All efforts into the struggle for further development of Soviet
chemical science and industry. Soob.o nauch.rab.chl.YKE[O no.1:1-3
'53. (14 IRA 10: 10)
(Russia--Chemistry)

C1:7/
Bev
Roils forms the singly
charged ion ReO,*. while MQ- forms the doubly charged MoOj*
Ion, the tatter is adsorbtd an cationites while ReO,' passes through
d orbed. The active group; of cationites can be arranfed in
o a, g
g
d~r of decrea"i" adsorbing power for Mo, as: SOJI < CH.SOH
COOH, , (SO.H + OR),< (COOH + OR). Various anionites
adsorb Mc,042- and RcO4- very poorly in alkaline solution, while in
acid solution, Re is preferentially adsorbed, because of the greater
itability Of ReO,-% Act,vated AJ,Oj completely adsorbs MoO42-
not.11CO R. C. MURRAY.
16-lq.4q

i-N form) i:> tlattr tor 4 h, tila vf~~?
all-I tmt With ~'- klil" o2oo rr,:- a!:d i:)~j TtO
Dissolve tha "o). .'W'

t t
"4W I
v III; .,I wz-'Ief 1--c:
wl-lp-tv fi-mo.c III froal t1w colo-r, ;ot- t:c'-'r
ment -Ith v N'04 "010 iiii; 7, 1 d w a r 20 z;::,

lo M.; "i
1 0 4'~ ~dd d lit
j'jA
wtcl~ iv~t fici A
lleat WQ i~lrnato W
e. ~Nkf' US), i a
a~vtatr ~10 lilt), alrd L.Al fr 5 1 u
i'li till, pfit- tvil~ll it With ho, 1 1, N'If"N'
dk-z-WvL- it in dil, III I I : 0 till till mkd ~cpi ~:;pliaw
ttle AL Ignite, tilt: L -vW vi"ijA%
C' It.

~L t"On i3 Irix'l, of cc
ah
I _5 na 1. 9 fm- cent-zn 3-`a,f=
aad
-
-dilw
'td 31
-ilk,'
zcnkd i~id th~;
'
m~l 0 Wllj
p~,- C CA n b: jl.tttfMut id t5 2~ t~jj.
ntt, E~. M6, -W; To. Sv, M,'
'
ar lpnx
tLat with t '54vm

Inf, t
talltvatm and uxa-
'
n
nt Intalist, -nd. Ehw lawfeku.-C
tl--' as
ked t~3~ ET% :A--~Alwr dacim(nititA is
bwlqed za (his.reactica of R-- witl.

NH c if
la

~T~,,::ppt,*'f~-t!i,--4ilfvrA'iii, X-,Off Vd
iqo, glid 'ifia thwc - - .: G rk.
yah~tq ccl ri=t
~-T

4

MLYOXM. JL L
3UNwKCOlWLKxATmDatrmi
ftttwr U&4L I LL Zhur, Obsbehel ER=.

Idw-dbowJAM and two chrolmalwapWo meWds
noro appUbd IA U stady of rbonl= comptu wit'a dimcMA-

Rt 10*7ozWo. The oomqtai. fortwds of me MeOll~Dw!Cll,

ormad in -U hydr*ohlado act-Amadluto la Qw prineaca
10
da Alolido Was SMIFISt3d. (B.V.J.l

--.=saw

W24

throm
A
MO
I
C2eeb
.
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extended
cg
to
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d
9
apm
y
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-
UL cad
tab

waj
e (in .
J
an "Vited Cf,
g
-at 80 ffut, 0 7 for 1 0 0390 for ca am it 201:
a
I . - . I
a.olw for 1.
-M41 for ;ad on a eigoo OJ57toj!
-Psms cyckT4rAffius in MIMI, with other h
droc
ti
f
l
at
ons
y
j
'dUcus*cd
--.RVRthcd was used, far the andytis of Casmo;
KNOX of
trink of cyclol:
mid UeCH: I weft f d I.V~
:Utificd CO
C
ff
M

c s
c. and
,
..M-F

USSR/Inorganic Chemistry - Complex Compounds C.
Abs Jour : Referat Zhur - Xhimiya) No 2, 1957, 4122
Author : LazaL21z.
Title : Act-ion of Liquid Amal~pms on Perrhenates
Orig Fub : Zh. neorgan. khimii, 1956, 1, No 3, 385-391
Abstract : Zn amalgam reduces KReO4 (I) in sulfuric as well as in
hydrochloric acid solutions. In both media the degree
of reduction of Re decreases with increasing concentra-
tion of the which the author attributes to the for-
mation of comolexes of the reduction products and the Cl-
2- ns. S L
or S04 anio At H.~-, 04 concentration < 3.6 g-equiva-
lent/liter Re(7--) is r,,~.duced to Be of a degree of oxida-
tion < 1+. In 711 H2SO4 reduction proceeds to mixtures
of Re(!-) and Re(*2+). In 10-18N H-.B04 reduction proceeds
to abcut Re(4-u). ' Dependin,.,, on the---- concentrat-L)n of
if 2S04 or ~Cl the Cd reduces I to W_xturez; of
Re0t), Re(4+) and Ec(5+). Un shakdng Cd amalgam
Card 1/2 - 30 -

USSR/Inorganic Chemistry - Complex Compounds C.
Abs Jour Beferat Zhur - Xhirdya, No 2, 1957, 4122
with solutions of I in 9N H 2S04 for >,, 8 minutes, Re(7-)
is converted to RJ(4-1-). on action of Fb amal~:am
on hydrochloric acid solutions of 1 Re(7-;--) is reduced to
about Re(4-4-). Bi analgam reduces Ke(7+) if the concentra-
tion of H SO, is not less than 7 g-equivaIent/liter, At
concentra n
Eo4 of H2S04 > 1011 hot and cold solutions of
I are reduced to Re(5-~. For determination of Re the so-
lution under study, 18N in H 2S04, is shaken for 10 minutes
with 2-3% Bi amalgam in a current of CO 2- The Re(5-,-)
thus formed is titrated with
0-03N "_2Cr207 to rhenyl-anthranilic acid. 0,44-10-77 mg
Re are determined by this method with a relative error
which as a rule is .4~ 2%. At concentrations of HC1 214
the Bi amalgam reduces I to a state close th Re('h-+-).
Card 2/2 - 31 -

RYABCHIKOV, D.I.; LAZARET. A.I
-
Chromatographic separation of melybdomw and rhen-4u,-j. Trady Kam.anal.
khim. 7-41-63 156. (HLRA 9:9)
I.Iantitut geokhimii I analitichaskoy khImii imeni V.I.Vernadekoge AN
SSSRI
(Molybdenum) (Rh*nium) (Chromatographic analysis)

USSR/Analytical Chemistry Analysis of Inorganic Substances, G-2
Abst Journal; Referat Zhur - Khimiya, No 1, 1957, 1236
Author: Ryabchikov, D. I., and lazaryev,_A. I.
Institution: Academy of Sciences USSR
Title: Separation of Rhenium from Vanadium and Tungsten by Ion-Exchange
Chromatography
Original
Periodical: Tr. komis. po analit. khimii AN SSSRI 19506, Vol 7, No 10, 64-67
Abstract: For the separation of Re from V, 100 ml of 0.3 N HC1 containing less
than 0.75 mg of V and varying amounts of Re are passed through a
column packed with 10 gme of MM-1 anion-exchange resin (OH form)
with a flow rate under 3 ml/min. Upon washing with 0.3 N HC! the V
is transferred to the filtrate and the Re retained on the column is
eluted with 250 ml 2.5 N NaOH. The separation of Re from V can also
be carried with SBS cation-exchange resin (hydrogen form). A solu-
tion giving an acid reaction with congo paper (100 ml) is passed
through a column packed with 15 gms of cation-exchange resin (12 mm
Card 1/4

USSR/Analytical Chemistry - Analysis of Inorganic Substances, G-2
Abst JoUrnall Referat Zhur - Khimiya, No 1, 1957, 1236
Abstract; diameter) at a rate of 2-3 MI/min. The column is washed with 150 ml
acidified water. The Re is eluted as ReOl~; tile V is eluted by washing
with 100 nil of 1:4 N113 sol"t'01"
For the separation of V from W 2.5 ml 3% H202 are added to 50 ml of a
solution containing Wt6 and Vlr~; the pH of the solution is adjusted to
1.0 with HC1. The colored solution is passed through a column packed
with anion-exchange A1203 from which the V is eluted by successive
washings with 25 ml of a solution of pH 1.0 containing one milliliter
of 3% H202 and 75 ml ca' pH 1,0 solution free of H202- The filtrate
containing the V complex is boiled and cooled., after which it is acidi-
fied with %SO4 and the VIs titrated with the ferrous salt of phenyl-
anthranilic acid. The W is eluted from the column with 200 ml of 1:3
NH3 solution and 50 El of water and determined in the filtrate by the
usual methods. For the separation of Re from Wj O-C~-0-15 gms of alloy
are fused with 3 gms NA2CO3 and 0.5 gms "aC'03 in a Pt crucible, fol-
lowed by leaching with hot water. The solution containing Na2WO4,
NaReO4, Na2CO , and NaC1 is neutralized and acidified with HCI until
an acid test Is obtained with congo paper, after which the solution is
Card 2/4

USSR/Analytical Chemistry - Analysis of Inorganic Substancesp G~2
Abst Journalt Referat Zhur - XhiniM, 1-10 4 ~957; 1236
Abstract: passed through a column of anion-exchange AlpO3. The column is irri-
gated with 20 ml d 0.1 N HCl. The Re is eluted vith'75 ml of 0.1
HC1. The filtrate and wash solutions cantainfmg the Re sample are
diluted to 200 ml,- 25-30 ml of the solution are treated,-4th' 10 ml
HC1 (sp. gr. 1.19); when the solution has cooled$ one milliliter of
20% UCN or NH4SCN and 1.5 ml of 25% solution of SnC12 in 1:1 HU are
added, and the solution diluted to 50 mll after 10 minutes, the thio-
cyanate complex of Re is determined spectrophotometrically or visuallv.
The W is'eluted with 200 ml of 1:3 NE3 solution and 50 ml water. The
filtrate is combined with 50 ml of concentrated HCl and 10 ml of 0-5%
gelatin solution, and heated over a water bath for 40-60 minutes.
After filtration and 5 washings with hot HC1, the filter with the pre-
cipitate is ignited and heated to 700-8000; after cooling, the weight
of W03 is determined. For the preparation of the anion-exchange
A1203 colum a 250 ml beaker is filled with 75-100 gmB;of powdered
A120 * the powder is covered with water and sbaken. After 2 minutes
the ?i*ne suspension Is decanted. The procedure is repeated 5 times,
after which the A120 is dried and heated to 900-1,0000 for 30-40
minutes. The A120 3 hus prepared is good for 50 operating cycles.
Ca-- d 3/4

'F"k /_ + 2 Y+ 9 e- v
Category: USSR C
Abs Jour: RZh--Kh, 1,10 3, 1957, M4
Author Lazarev, A. Io
Inst t given
Title Reactions of Rhenium with Iron Cyanides
Orig Pub: Zh. Obshch. Mimii, 1956, vol 26, i~,o 4, o65-963
Abstract: The reactions between KRe04 (I) and X4 Cle"e( C")61 (I,) or
K3~_Fe(CN) 77 and SnCl (III) in hydrochloric acid solution have
been investgated and &e optical density of the soluti-ons was
measured in the region 400-rOO r4,IP . The molar extinction coeffi-
cient was calculated and was found to have a value of 3x 103. jAnyl
and butyl alcohol extract a colored comples from the solution. SBS
and Sulfougol-K cation-exchange resins in the acid form do not ad-
Sorb the complex; T1,1 anion-exchanr~e resins do. The optical de-ri3ity
of the solutions along different cross sections of the ternary
diagram. I-II-III has been investigated. A maximum in the optical
density was found at a I/II ratio of 1/1 (in the presence of an
Card 1/p -15-

Category- USSR
Abs Jour: FZh--1ai, No 3, 1957, 7784
excess of III) and at a I/III ratio of 1/1. On
data, Re is assigned a pentavalent state in the
The author gives the fonmla H 3 LRe02(C1")6Fe_7
the basis of these
investigated complex.
for the complex.
Card : 2/2 -16-

AUTHORS: Lazarev, A. I., Lazareva, V. 1. 32-2-7/60
TITLE; The Colorimetric Determination of Titanium in Alloyed
Steels by Means of the Addition blethod
(Kolorimetricheskoye opredeleniye titans, v leEirovannykh
stalya-kh metodom dobavoki
PERIODICAL: Zavodskaya Laboratoriya, 1958, Vol. 24, Nr 2, Pp. 145-146
(USSR)
ABSTRACT: The above mentioned method is Tridely used for polarographic
determinations. In the present work it is used for
colorimetric det~jrminations of titanium. In principle the
course of the analysis is the following: The steel sample
to be investigated is dissolved in the usual way and the
solution is divided into three' equal parts. To each of them
the same amount of orthophosp-horic acid is added in order
to transform the Fe3+ ions to colourless complexes. A 3%
hydrogeuperoxide solution is added to the first and second
part, and to the second part also a known quantity of
Card 112 titaniumoulfate solution is added. After filling up to a

The Colorimetric Determination of Titanium in Alloyed Steels 32-2-7/60
by Means of the Addition Method
certain volume with distilled water the solutions are colo-
rimetrically measured. A colorfilter with a transparency of
400 M~W is recommended by D. P. Shcherbov (ref. 1). The
third part of the solution to be investigateii serves as
"zero-solution". A tablo of the results for n atool sample
with 25~- of Ni and 5~ of C'u, as well as a formula for
calculation are ,Aven, According to the method described
it is also posoible to determine other elements, on the
condition, that the components as well as the reagent are
colorless or that a ctiange of color is caused which
corresponds to the Lambert-Beer theorem.
There are 1 table, and 1 reference, 1 of which is Slavic.
ASSOCIATIOTT: 1ndustrial Institute of the Kuybyshev Hydro-Electric Plant
(Industriallnzvy institut Pri Kuybyshevskoy GES)
A ; AIL,,:3LE: Library of Conf!ress
Card 2/2 1. Titaniim-Deterridnation 2. Titanium-Polarographic analysis
3. Colorimet ry-Appli cat ions

AUTHORS: Lazarev, A. I., Lazareva, V. I. SOV/32-24-7-5/65
TITLE: The Application of Ascorbic Acid in the Determination of
Molybdenum by the Thiocyanate Method (Primeneniye askorbinovoy
kisloty pri opredelenii molibdena rodanidnym metodom)
PERIODICAL: Zavodskaya Laboratoriya, 1958, Vol. 24t Nr 7, PP- 798 - 800
(USSR)
ABSTRACT: The influence of a number of factors on the formation of the
molybdenum thiocyanate complex in the colorimetric determination
of molybdenum was investigated. The optimum concentrations
of hydrochloric acid, of thiocyanate and of ascorbic acid were
found to be 1,4, 0,6, and 0,05 m/liter, respectively. The
coloring reaches its maximum after 10 seconds. A light filter
which is transparent for waves of 440 mk wavelength is used.
The presence of NO- ions in concentrations reaching 0,15 m/1
3
displays no disturbing effect. When iron (III) is reduced in
the presence of thiocyanates, citric or oxalic acid, the
concentration of ascorbic acid must be raised to 0,1 M/l. A
tungsten (IV) complex, vanadium, chromium, nickel and cobalt
Card 1/2 do not disturb the determination of molybdenum, as tungsten is

LAZAREV, A.I.; LAZATIriA, ~ II.
Analysis of a nickel electrolyte by means of static ion-
exchange chromatography. Zav.lab. no.11:1301 '59. (MIRA 13-.4)
1. Akmolinskiy sel'okokhozyaystvennyy inatitut.
(Nickel-- Analysis)

S/137/60/0c;()/W8/005/009
A006/AOOI
Trans-, at:ion from. Referativnyy zhurnal, Metallurg-lya, 1960, 11c, 8, p, 247S
# 18408
AUTHOR - Lazarev, A. 1,
T.M-LE~, K im- ~.,, t i c sof Butectoid Tznansfomat-~on of Steel at Va::,f.cus Heating
Rat.3'S
PUIUOD13AL.. Nauckx, tr. Leningr. ir.-t toch-noy m-Ahan, --1 optiki~ 19,59; Nc. 37,
pp. 99-107
TF,C'-'? The author dell-i-m:Lnsd anal.ytllo.~Clly t-)r,- tempF?;ratu-r-, t',, 1,f e.*Ut;%,-,t,;1d
1. 4
-~~ormaticn of stee' a~ a ffunot'o-a ~-,.f the heating rate .1h bi-ed on 1-h-
k.:,ans. a
4-
I.emparature depp-ndence of the specifl~: deiaalescence pcwer For or(') vi-i
f*-~Ilow�ng.-i-quation was fo;;nd. V(t) ~, B [I - exp k-,~t - t,)], where B and k,
are ztonstants, to is the super?ea" exceeding the equ-'11.brium temp-ira",ure )f trans-
..~o-mat�on, it Is shown that is determin.?d by the -for-mula. t', - t + !Aj
Ln (a V + 1), whtre a is the constant, detervLned like ki, from axperimental
relaticr- tn (1Y), 1Yj) Is tt;na nomttnsgr rale. b-i.1cw th-~ 'trans ormatic-i tsmpeiratur-~,
cazd 1/2

S/1137/60/000/008/005/009
A006/AOOI
K:Lne-'%-,ics of Eut-~ctoid Transf3rmatlon of St"iel at Varlous Heating I~at-s
For anr-ealed steel, k, az.d a az- equa-I t.-, 0.094 d,-gria-i ard 8.3 S~.:/
degreei To the tr, th- tl-ansformatlon r5:-S-z
and the time To in rang.~t, reqair~-d frr- ~~a cznplat.--~on cf -Ih~- trans-fcrmat-.cn,
tlhi~ following dimenz:cniess values ar- u:~ed,, 15 IV44 wh--~r-3 -,~ - I;
ok = t - t, and L (V0 + !/a
quq-tfr~ 0
1--s q - a - ILIO (a VO + 1) L and q wher.3 Q 1E -he h,-a-t sp-i.-it
for thl) t.-arlsfc-nna-11-icn, Bas-~d cn th~3 value Q, tran-sformation hPat,
th-c-~Fe cpuantit-' :~:- allow the graphoaanalytIcall determination of the -'ralues LrI a:.-Ld
6,7S, ','Drrespond-Lag to completed ~ar b- cal 7", -3~ -.",I
This is the ftzli of -th.:- cr--~q-ina'L Ru~~.qixl
abEtract,
ard 2/2

5(2) SOV/75-14-3-21/29
AUTHOR: Lazarev, A. I.
TITLE: Detection and Determination of Rhenium (Otkrytiye i opredeleniye
reniya)
PERIODICAL: Zhurnal analiticheskoy khimii, 19591 Vol 14, Nr 3, PP 362-364
(USSR)
ABSTRACT: Potassium perrhenate yields in the presence of hydrochloric
acid, bivalent lead ion, and sulfite a colored complex
compound whieb can be extracted by means of isoamyl alcohol
and determined colorimetrically. Nickel, chromium$ and co-
balt as well as molybdates and tungstates disturb. By means
of ?he ion exchange chromatography the anion of the rhenium
complex was found to cause the coloration. The valence of the
rhenium in the complex was photometrically determined by
reduction of tin chloride and found to be tetravalent. The
figures show the light absorption curves of the rhenium
complex under different conditions. Table 1 presents the in-
fluenoe exercised by the acid concentration upon the colora-
tion, table 2 the analysis results. There are 3 figures,
Card 1/2 2 tables,and 3 Soviet references.

Detection and Determination of Rhenium. SOV/75-14-3-21/29
ASSOCIATION: Akmolinskiy sellskokhozyaystvenny institut
(Akmolinsk Agricultural Institutef
SUBMITTED: September 27P 1957
Card 2/2

5(2) SOV/32-25-4-7/71
AUTHORS: Lazarev, A. I., Lazareva, V. I.
TITLE: Colorimetric Method for the Determination of Antimony in Metallic
h1olybdenum and Molybdates (Kolorimetricheskiy metod
opredeleniya surlmy v metallicheskom molibdene i molibdatakh)
PERIODICAL: Zavodskaya Laborntoriya, 1959, Vol 25, Nr 4, pp 405-406 (USSR)
ABSTRACT: The reaction of methyl violet with antimony (V) is Darticularly
sensitive and selective (Refs 1 1'2), and even greater quantities
of other elements do not disturb this determination of antimony
(Refs 3,4). Tests showed that from a 0.5 C of ammonium molybdate
the antimony can be directly determined (without previous sepa-
ration) unless too great quantities of molybdenum are present.
In the present case a complex formation was used to eliminate
this disturbing effect of Mo. Oxalic acid, citric, tartaric and
orthophosphoric acid, as well as sodium pyrophosphate, were
examined as complex formers. The best results were obtained with
citric acid. The described analytic methods were examined on
samples of pure molybdenum, molybdenum wire and ammonium
molybdate (Table). The indicated course of analysis shows that
Card 1/2 the colorimetry was made on the FEK-M device with a green light

SOV/32-25-4-7/71
Colorimetric blethod for the Determination of Antimony in Metallic 11oIjbdenum
and Molybdates
filter,, A higher accuracy of the analysis is attained with the
use of an additional light filter Nr 9 which was suggested by
D, P. Shcherbov (Ref 5). The method renders possible a determina-
tion of 5-10- 6% Sb in molybdenum. There are I table and 5
Soviet references.
ASSOCIATION: Kuybyshevskiy industrialInyy institut (Kuybyshev Industrial
Institute)
Card 2/2

5(2)
AUTHORS: Lazarev, A. I., Lazareva, V. I. SOV/32-25-5-4/56
TITLEs Determination of Zinof Lead, and Cadmium in Brass
and Bronze According to the Complexometria Method
(Opredeleniye tsinka, svintsa i kadmiya v latunyakh
i bronzakh kompleksometricheskim metodom)
FERIODICALs Zavodskaya Laboratoriya, 1959, Vol 25, Nr 5, pp 542-544 (USSR)
ABSTRACTs In the case under review strong alkaline anion exchangers
of the domestic trademark An2f were used for the
determination of zinc, lead and cadmium according to the
complexometric method. A complete absorption of Zn-j Pb-
and Cd-complexas takes place from hydrochloric solutions
of a concentration of 1.5 and 0.25 n . Fe, Cu and Al are
scarcely absorbed under such conditions; the absorption of
Cu and Fe increases, however, with a rise in the hydrochloric
acid concentration. Owing to this, impurities were
separated for zinc at 2 n acidity, and for cadmium and lead
at I n acidity. A glass tube with an internal diameter of
16 mm and a length of 250 mm was used as an ion exchanger
Card 1/2 column, which was filled with 10 g of ion exchanger (grain

Determination of Zinc, Lead, and Cadmium in Brass SOV/32-25-5-4/56
and Bronze According to the Complexometric Method
size 0.5 - 1-0 mm). Prior to the first working process,
200 ml 2 n NaOH solution, followed by 50 ml of distilled
water and 100 ml of HC1 of a concentration corresponding
to the metal were flown through the column. The course
of one such analysis is described, and the analytical
results of some alloys are given (Table). There are 1 table
and 5 references, 4 of which are Soviet.
ASSOCIATION: Kuybyshevskiy industriallnyy institut (Kuybyshev Industrial
Institute)
Card 2/2

5(2)
AUTHORS: Lazara7, A. I., Laza.eva, Vo Ie SOV/312-9-5-7-3/50
TITL,Es Colori-metri-1 Methcd fol, De terml natior. of Cadmium W-fth
Rhodam~ne B Kolcrimetrichesk-Ily metod opredaleniya kadmiya
rodaminom B
PERIODICAL: Zavodskaya labcratotiya, '1959, Vol 25, Nr 79 PP 783-786 (ussp)
ABSTRACT: A col-crimetric method f,)r d',.term! natl.nn u." 3admium was
elaborated whish !.s based cn the ra-aution of calmium iodides
* t - t, dam. .~ (Ref 1), The rea.-tion Pond~tions were
w
-, -h r ine B (T)
~~n the FEK-M elk~vice. With an
innzeape -f tle siifuric conc;entration the sensitlvit-
y of
thq (Tab--.e _a red,,zoed, a -ract, which can be observed
4. o a mu-.h 6-~eatex~ degrae in the, Pase t~f hylroch'Dr:'~: acid.
As ar. ol~timllz "On" ratlrn of KJ 0.1 n war, founl. The sequent-A,
of mixin.o ~.-.f -~-h=_ -.-et sclut-lons la -:.Tiportant. The &--?g-ree -,f the
i'enaily :-f bh-a rlependl- ]Areai~`y c;n -%he oadm'um
sc,,,.Cr_.ntrat.iir i.n the range Mrilm--,. The sellsiti7ity of the
rea.,-,t4on am;3ur-ts 0.08 correspond-Ing to that on the
sps3tr,.-ph.-~tomet~T SF-4 i'Ref 3). The de term-l nation accuraoy in
Card *./2 pirr~k cadm-lum, so_-uL+i'__qs -,.s given (Tabla_ 2). In the presence of

Col6rimetrief la"ekhod for D~.'.-armlnabic~,. cf Cadm~-*-am SOV/3-2-25-7-3/50
With Rhodamine B
i a~,:*.dq Lx,~6V.-z as:Ld,
h.ydr..-Yylamin-?- and fate the n,"', take
I : -'a strongly red-a-zed; this
P* 5-~ )2:, th-
far!t als-2 holds fs~:- solvent.-z. The Cl - J -
rp p.-i t..j o
fiti,d,---mmLne 'S i-a ths %as,-, (f +.h,p
cai C-)SH B-*-, Sb and Hg with
The
'p fe
and s
whis"14 was +ha app'*-'-,-,at-*,)n of Ila-d'ethy7d-Uhf:-
34
c sift amn f- ~,s.dxl va. I- bsrmfnaticm to
the m---hho-' assl---r.'-'-e.~~ .%an +Iak-? thc pzase-.ane c,--P z4.nc-
with as--;Orbic a---;-d
lr;.~r. ~11~ a-ai -b.."Zs d- stu-y.~c ara- sis. The c~cxnsp
I.. / iy
-f-r hs 5~f ~7adxlum w~crrding to the
raeth,.,.i eeE,I-r~.bef -7-M- and a.1-am-inum, m-itallir -hromium
and tal, Aet-.r w~jl ;.-ts a-r -:7s-*a xesU't of
va-!,.us mat-~- a--.s are e-b--tel Ta'~Ie 3). Thers are 4 figlaxres~
ASSOCIATION. K--q-cyahl~.~-r-skiy ir-S'.-i +!-.t ~K-ayl:yshe- Ind-astrIal.
Card 2/2 n s ui;

9/o.~1,?/60/026/0W-i/01 6/0-,~6/n
B020/W,2
AUTHOR: Lazarev, A. I.
TITLEs Determination of Molybdenum and Tungsten by an Acidimetric
Method
PERIODICAL: Zavodskaya laboratoriya, 1960 Voll, 26, No. 6, PP. 935-9138
-,I the
TEXTt The autbor recommends the determination of the Pnd po4nj;
acidimetric titration of molybdic and tungstic ar-ids by applying a
potentiometric method instead of using an ind.-icator. The Indicator elec-
trode used was a cdat antimony disc and the referen-le electrode was an
AgC1 electrode which also served as mixer. Besides the potentiometric
method used for the determination of tungsten, the author also re-.om-
mended the titration against methyl red. Molybdic acid is dissolved in an
excess lye which is re-titrated against phenolphthalein. This method,
however, is not sufficiently accurate. In the present paper the possibility
is investigated as to whether molybdenum can be acidimetrically determined
with a potentiometric control of its PH. For this p-urpose an ionometer
of type VM-2M (IM-2M) was used. The potentiomptric titration was carried
Card 1/4

Determination of Molybdenum and Tungsten by S/032/60/026/008/016/046/XX
an Acidimetric Method BO--;O/BO52
out with 20 ml oo-ataining 0-45 fmaole oF sod-JUM molybdate. 0.2 N EV1,
HNO39 H2304 , and oxalic acid solution were used for the titration in the
presence of complex-forming mannite, glycerin, and oxalate -compounds. The
potentiometric titration curves of sodium molybdats with HC1, H so -
~1 4 qI d
HNO3have almost the same shape (Pig. 1,Curve 1). In an aqueous al;:ohcl--*-.
solution, the transition is more distinct, and the titration takes a some--
what different course (Fig. 1, Curve 2). The t1trallion with oxaliz- acid
is illustrated by Cur-ve 3 of Fig. 1. Th~~ irtqrac,1-ion betl-~een the m,.~'_Lybdat=
and oxalic acid is aocompanied by the formation of m-)1yba-~n-um-oxal-J"~ a-!_J-J
for which the following forml3las have, 'eer, 1,ub1i.3hej,? no (C 0
2- 04 3 2 4
[MOO 2(C20 A' and 114 002(C204)2] (Refs. 1-3). The ~noreased acid con-
sumption is due to the development of Fill o0o (C*) 0ATrans-1 ticr, ourr,r,2 At , q
obtained (Pig. 1) for the t1tration of the molybdate '-y i m1xture of
equal volume portions of hydrochloric and oxalic acids. A weak, complex
acid (Ref. 4) is formed from mannite and molybdate. A clear jump of the pH
Card 2/4

Determination of Molybdenum and Tungsten by S/O-,52/60/026/008/016/046/XX
an Acidimetric Method B020/13052
is observed during the titration of a molybdate - mannite mixture (Fig. 1,
Curve 5). Toward the end of the titration, the solutions turn blue due to
the reducing effect Of metallic antimony. Thus, the potentiometric
titration of molybdates can only be carried out within certain pH ranges.
An addition of complex-forming compounds (mannite or glycerin) does not
noticeably improve the titration. The analysis of molybdenum is described.
Table 1 given the results obtained by the acidimetric method and that of
the bismuth-amalgam reduction. In some cases the results are statistically
evaluated by the method described by 1q. A. Alyavdin (Ref- 7). The author
studied the possibility of a direct potentiometric titration of tungstates
by various acids. From the results obtained, the potentiometric titration
curves'were plotted (Fig. 2). The titration of tungstic acid by indicators
is practically impossible. The pH variation in the HC1 and ENO 3 (0.2 N)
titration is represented by curve 2 (Fig. 2), Curve 4 (Fig. 2) shows that
with oxalic acid, tungstate-oxalic heteropolyacid is formed. The course of
titration observed with a tungstate-glycerin mixture and HC1 differs from
the rest of the titration curves. The maximum jump is observed in the
presence of mannite. A potentiometric and an indicator method were worked
Card 3/4

Determination of Molybdenum and Tungsten by S/032V60/026/008/016/046/XX
an Acidimetric Method B020/BO52
out for the determination of tungsten in various compoundsq the analyses
are described, and the -results obtained for tungsten by the conventional
gravimetric method and the one suggested hereq are compared.
There are 2 figures, 2 tables, and 13 referencess 10 Soviet, 2 British,
and 1 Prench.
ASSOCIATION: Akmolinskiy sel'skokhozyaystvennyy institut (Akmolinsk
Agricultural Institute)
Card 4/4

S10321601026100(3110231046.lxx
B020/BO52
AUTHORS: Popov, I. P., Rodzayevskiy, V. V., and Lazarev, A. 1~
TITLE: News in Brief
PERIODICAL: Zavodskaya laboratoriya, 1960, Vol.. 26, No- 8, P. 949
TEXT: A method is suggested for the 3eparation of molybdenum and tungsten
from rhenium, which is based upon the adsorption of these elements on
Mn02* During the separation of molybdenum, 50 - 100 ml of the alkaline
solution containing rhenium and molybdenum, are neutralized w-~th sulfuric.
acid (1:2) until the bromophenol blue turns yellow. For each 60 mg of
molybdenum in the sample, 8 ml of O~25 N potassium permanganate solution,
7 ml of a 0.5 M Mohr's salt solution, and 3 ml of 0,25 N sulfur1c acid are
added. During four minutes the solution is boiled, cooled down, and
poured into a 200 ml measuring flask, which is filled up to the mark
with distilled water. After filtering, rhenium is colorimetrically de-
termined in an aliquot part of the solution by ammonium rhodanide and tin
chloride. The colored complex is extracted by butyl alcohol. Prior to the
Card 1/2

News in Brief
S/032/60/026/008/02-1/046/XX
B020/BO52
analysis of substances with low mangarietAe ctontent, 5 ml of a 0-5 N
manganese sulfate solution are added to the portion of the solution to be
analyzed. Furthermore, 5 ml of 0,5 N ?AnSO4, 7 ml of a 1 N sodium acetate
solution, and 10 ml of EL O~25 N potassium permanganate solution are also
added. Tne solution is boiled for four minutes, cooled down, and then
treate(', i.n the above manner. The same method is employed for the separa-
tion of tungsten. MnO2 absorbs tungsten more easily than molybdenum-
ASSOCIATION: Balkhashskiy gorno-metallurgicheskiy kombinat (Balkhash
Mining and Metallurgical Kombinat)
Card 2/2

5.2200 7661
S07/80-33-2-"26/52
ATJTHORi Lazarev, A. 1.
TITLEi Brief Communications. Recovery of' Rhenium from I'Lingsten-
Rhenlum Alloya
PERIODICAL: Zhurnal prikladnoy khimli, 1960, Vol 33, Nr 2, pp 468-
469 (USSR)
ABSTRACT: 20 g of tungsten-rhenium alloy and 100 ml perhydrol,
placed in a 500 ml flask, were heated on a water bath.
The acidity of the solution, and conoequently the rate
of solution, increased in time:
'0 10 + 711202-~ 21111(!()4 + 611,0,
%V +'1112()'- - 112%VOS + 311,0.
Fresh amounts of' perhydrol must be added to replace
the spent perhydrol. The rate of solution can be in-
creased by using a mixture of 20 ml nitric acid and
50 ml perhydrol. The solution of the alloy contains
rhenic acid, pertungstic acid, and hydrogen peroxide.
On boiling, hydrogen peroxide is decomposed and pertung-
Card 1/2 stic acid Is precipitated as tungstic acid. Rhenic

Brief Communications. Recovery of Rhenium 77661
from Tungsten-Rhenium Alloys QOV/80-':~0-2-36/52
'j J_;
acid remains in the solution and can be separated as
potassium or ammonium rhenate. In a variant of the
above method, the boiling solution of the alloy was
neutralized with Ca(OH) using congo red indicatorl
subsequently excess Cat& )2 was added (30% of the
amount used for the neutralization), the solution was
boiled for 15 min and left for 2 hr in a water bath.
After cooling, filtering through a glass filter, and
3 washings with saturated lime solution, the filtrate
was passed through a column filled with 100 g KU-2 or
SBS cation exchange resin. Ca -F was absorbed, and
ReO4 remained in the solution. The rhenic acid solu-
tion was then neutralized with KOH or NH 3, evaporated,
and desiccated under an infra-red la Th ield of
rhenium in both variants exceeded 997* Thereyare 6
Soviet references.
ASSOCIATION: Akmolinsk Agricultural Institute (Alcmolinskly sell
skokhozyaystvenyy institut)
SUBMITTEDs August 31, 1959 Card 2/2

S.2-2-00
30655
S/136/6i/000/011/004/007
B193/F,383
AUTHORS: Radzayevskiy, V.V. and Lazarev, A.I.
TITLE: Preparation of high-purity tellurium
PERIODICAL: Tsvetnyye metally, no. 11, 1961, 52 - 54
TEM. In an attempt to develop a rational method of
preparation of tellurium with no more than 0.01 - 0.0579'
impurities, several refining processes were studied. Technical-
purity Te and TeO2 were used as the starting materials, their
chemical analyses being given in Table 1. Acid and alkaline
leachin.- in the presence of an oxidizing agent, smelting with
NaOH and sulphating roasting were tried for refining crude
tellurium. Of these, the latter method gave the best results,
the bulk of Se being distilled-off in the second stage of the
process at 500 - 550 0C. On leaching the sulphate with NaOH
(used in a quantity 101,-',, in excess of that theoretically
required to convert all the tellurium to sodium tellurite),
980c of the initial Te content is recovered, other impurities
(Cu, Fe, Cr and Al) being separated at the same time. After
neutralizing the filtrate with 14 2SO4 tellurium dioxide was
Card 1/0

3c)655
S/136/61/obb/oil/oWoO7
Preparation of high-purity E193/E383
obtained containing 73.6% Te, 0.08 - 0.09% So, 0.155% Fe
and 0.14% S. Regarding the treatment of technical TeO.9 a
0
NaOH leach at 60 - 70 C can be used to separate Si, Fe, Cr
and magnesium, to reduce considerably the Cu and Al contents Ix
and to dissolve practically all the Te. Subsequent treatment
with 1.1 S04 yields a product containing 69c' Te, 0.04% Se,
3 - 270/0 9i, 0.10% Fe and 0.37%) S. Since th"'e stoichiometric
content of Te in Te02 is 79-951,lo' Te, the products obtained by
either of the above methods can be regarded as fairly pure.
Metallic tellurium can be obtained by dissolving TeO. in 11C1,
followed by precipitation of To with S029 by electrolysis in
a NaOH solution and by reducing smelting, the two former methods
being used in Soviet industry and the latter in Canada~ Since
the products obtained by the present authors from(rude Te02
contained a largo quantity of Si, the possibility of eliminating
this impurity by reducing smelting was investigated. To this
Card 243

S/136/61/ooo/oil/oo5/oo
E193/E135
AUTHORS- Rodzayevskiy, V.V., and, La.zari1!~'1__A_,J...._
TITLE. New sources of rhen-4um
PERIODICALz Tsvetnyye metally, no.11, 1961, rq-58
TEXT., In a search for new sources of rhen-ium.. its behaviour
in ore-dressing processes and its content in mine waters and in
Cu/Mo and polymetallic ores were studied, During beneficiation of
Mo ores, Re followed Mo and no detectable quantities of Re were
found in the tailings. The isomorphic mode of associ-ation between
Re and Mo was indicated by the fact that it had proved impossible
selectively to lea~_-h out Re during oxydation of Mo con:;ntrate3~
On leaching a MOS2 concentrate with a 30% sodium hypochlorite
solution, the rate of dissolution of Re in the initial stages was
faster than that of Mo, but the Re/Mo atomic co=ent:~ation _ratj.~_
(1.2 x 10-3) in the final solution was practically identic;al w�th
that in the concentrate. When M052 becomes oxydized under
natural conditions, Re is converted to water-soluble form,, sin:a,
after becoming oxydized to the higher oxide ReP-07, it forms a
strongly mono-basic acid HRe204 which can ren,:.+ with oxideE cz,
Card 1/ 4

New sources of rhenium S/l36/6i/ooo/o1i/oo1q/oo-7
E193/E135
carbonates of alkali metalB to form rhenates., all of which ara
more or less soluble in water. This explains the absence of Re
in oxydized Mo, Mo/Cu, and polymetallic ores. Examination of
polymetallic, 3ulphide ore depo5its in Kazakhstan hal re-i-eale~i
that there -is no connelsTion wha--avar between the o::.urrenze cf Pa
and that of other metals (Cu, Pb, Zn, Out cf 200 sample-a-
analysed.., 21 contained both Re and Mo, 17 ~-ontaining Mc only.,
The Re and Mo concentration vari ad between .1 and 2 and 10 and 30
g/ton, respectively', cl-,'as--cmally, a sample contained 3 times mcra
yrite, 3PhalerL-r.e, galeni,~--! ani
Re than Mo. Examinat4sm. of C-hal!:;--%v
other minerals showed that they aontained o-' :.luded pa2!ti:leE cf
In a majority - lea rf Ihe3a minerals
Re-bearing mineral5. f samp
no Re was dete~:Aad,. athers--ontained 0.002-0.004% Ra,, w~zth-
isolated f-;aseB of the Rc --cn+ent being 0.0~ or even 0.3%. Th
~~hemi~-al nature of these has not ya~ bEen
The specific charaAer of '~hc~ Re ~.ompounds -4n Cu/Ma an! po-y-
metallit ores was alan --'ndi-;a-.,ed by *lie re3ults rf orze-dresa4n&
tests. Duz---ng'b-enefL~,iatio--i- of' a pc~jvme,~a.11-4-, z!-e,
1.8% Cu, 0,2% Pb, OA008% Mc and 0,0001% R~, the
Card 2/ 4

222
New sources of rhenium S/136/61/000/011/005/007
E193/E135
recoveries were attained- 96% Cu., 70% Pb, 30% Mo, and 60% Re;
33% Re was found in the tailings. In the case of an ore from
another Cu/Mo deposit, 85~ Re was found in the tailings, 10% in
the Cu concentrate, and 3%,in the Mo concentrate. Whereas
recovery of Re from the Mo concentrate was impossible and from
the Cu concentrate difficult, it ~was relatively easy to extract
it from the tailingst 30% could be dissolved in agitated and
aerated water at room temperature; on adding 5% sodium carbonate
the quantity of dissolved Re increased to 50%; after heating to
90 OC in a 5% sodium carbonate solution, 90% Re was recovered.
The behaviour of Re and Mo during the beneficiation of yet
another three types of ore is illustrated by data given in Table '31
Examination of 8 samples of mine waters from different mines of
polymetallic ore deposits showed that only two of them contained
Re in the concentration of 0.042-0.95 mg/litre, the Re content in
mine waters of Cu/Mo ore deposits being 0.035-0.055 mg/litra-
A method based on the application of an organic, complex-forming
compound (unspecified) was developed, which can be used for
extracting Re from any solution, irrespective of its concentration
and/or Mo content.
Card 3/4

IAZAREV, A.I.j RODZAYE-VSKIY,, V.V. II
"V
,At diethyldithiophosphoric
Photometric determination of rhenium by uW'
acid. Zhur.anal.khim. 16 no.2:243-244 Mr-AP-161. (MUZA 14:5)
1. Akmolinsk Agricultural Institute.
(Rhe~ium--Analysis)

23596
2 S/075/61/016/003/007/007
B106/B208
AUTHORS: Ryabchikov, D. I. and Lazarev, A. 1.
TITLE: Rhenium determination in alloys
PERIODICAL: Zhurnal analiticheskoy khimii, v. 16, no. 3, 1961, 366-367
TEXT: In the photometric determination of small rhenium amounts in alloys
by the thiocyanate method (Ref. 1: Sendel Ye. B., Kolorimetricheskoye
opredeleniye sledov metallov, Goskhimizdat, M., 1949) copper interferes by
forming a sparingly soluble thiocyanate. In a previous paper (Ref. 2:
Ryabchikov D. I~, Lazarev A. I., Zh. analit. khimii J, 228 (1955)) the
authors had devised a method for the photometric determination of rhenium
in solutions containing up to 2-10-3 g-ions of copper per liter. In this
method copper was bound by thiourea to a colorless complex. In the pre-
sence of high thiourea concentrations a complex of rhenium with thiourea
is formed which shows other optical properties than the thiocyanate complex.%,~
In the present paper, the authors describe the rhenium determination in
alloys which contain Iron as the principal mass, and besides large amounts
Card 1/5

23596
S/075/61/016/()03/007/007
Rhenium determination in alloys B106/B208
of aluminum, manganese, nickel, and up to 15% copper, Determination was
made by the thiocyanate method after separating the remaining components
of the alloys. 0.1 g of the alloy is dissolved in a mixture of 5 ml hydro-
chloric acid (1:2) and 5 ml nitric acid (1:1) with slight heating. The
solution is concentrated to a volume of 0.5-1 ml on a water bath. Concen-
trating must be carefully performed, as rhenium compounds are volatile
from acid solutionB~ 5 ml of concentrated HC1 is added to the residue, it
is concentrated again, and this procedure is repeated once more. The
residue is dissolved in 50 ml of distilled water and the solution is passed
through a cation exchanger column at a rate of 4 ml/min. The rhenium
passes over into the filtrate as an anion. A 50-ml burette was used as
exchanger column, it was filled with 10 g of the VY-2 (KU-2) cationite, and
had a glass-wool stopper at the lower end. The exchange resin was con-
verted to the H-form prior to use by washing through the column with 100 ml
of 2 N sulfuric acid, and then with 100 ml of distilled water. For complete
elution of the rhenium anions, the column is washed with 150 ml of distilled
water. The filtrate combined with the washings which now contains the total
rhenium content of the specimen is diluted with distilled water to 250 ml
in a graduated flask. The cations adsorbed on the exchanger are eluted with
Card 2/5

23596
S/075/61/016/003/007/007
Rhenium determination in alloys B106/B208
200 ml of 4 N sulfuric acid; the cations can be determined in the acid so-
lution. The described separation of rhenium from the other components of
the alloy lasts up to 50 minutes. 5-10 ml of the rhenium solution in the
graduated flask are filled into a 50-ml flask, and mixed with 20 ml of
hydrochloric ,acid (1:1), 2 ml of a 50 potassium tbiocyanate solution, and
2 ml of a 20V,, solution o~ SnCl 2H 0 in concentrated hydrochloric acid.
2* 2
After adding each of the above reagents, the solution is thoroughly mixed.
The flask is made up to the maik Oith distilldd *ater.' After 10 minutes,
theIoptical density of.the solution is measured in an NK-M (FEK-M) p~oto-
electric colotimeter through a blue filter against distilled water as'
reference solution. The rh6nium content is'determined ~y a calibration
curve plotted by means of standard solutions of pure potassium perrhenate
in 1 Ij hydrochloric acid. To accelerate and to simplify the described
ihenium determination,-the direct photometric determination of rhenium with
thiourea was Used (Ref. 2). In acid solutions, thiourea forms, with rhe-
nium compounds in the presence of-reducing agents, a greenish complex com-
pound whose absorption maximum lies in the shortwave band of the visible,
speo.trum. The optical density of the solutions,of the complex is directly
Card 3/5

2
S/07 5 /631510616/003 /007 /007
Rhenium determination in alloys B106/B208
roportional to the rhenium concentration in a wide,concentration.range
,z-16o pg of R6 in 25-ml). The molar absorption coefficient of the com-
~
plex is~~.2-jo3. -At room temperature, the complex is'6nly,slowly formed.
The-obening up of the speoimen ahd tht evap6ration of,nitric arid.takes
plac6:in the-way mentioned,above. The concentrated solution is ;hen dis-
solved in 50 ml of distilled-.water, as above, and made up to ~00 ml'in a
measuring flAsk. 25 ml of this solution are mixed with 10 ml of concep-
trated HC1 in a 50-tal-flask, and cooled. After addition of 10 q1l of a 5%
aqueous solution of thicures. and 2 ml of a 20Y. solution of SnCl 2' 2H20 the
flask is fille'd up with distilled water. The optical density of the so-
lution is measured through a color filter'with maximum tranamissivity at
40Q' mjL. The table shows results of rhenium detiermifiationWin alloys by the
two methods described. Th6re are I table'and 4 Soviet-bloc references,
ASSOCIATION: Institut geokhimii i analiticheskoy khimii im~ V. L Ver-
nadskogo AN SSSR, Moak-va (Institute.of Geochemistry and
Analytical Chemistry imeni V. 1. Vernadskiy AS, USSR, Moscow)
SUBMITTED: March 14, 1960
Card 4/5

RODZAYEVSKIY, V.V.; ~~ZAREL-Aa,
New sources for the preparation of rheniums TSvet. met. 34
no.11:55-58 N 161. (MIRA 14:11)
(Rhenium) (Tailings (Metallur&))

LAZAREVA, V.I.; LAZAREV, A.I.-:,-,RODZAYEVSKIY, V.V.
Determination of molybdenum by its catalytic action. Zhur.anal.-
khim. 17 no.1:65-69 '62. (MIRA 15:2)
1. Tselinograd Agricultural Institute.
(Molybdenum--Analysis) (Catalysis)

LAZAREV, A.Il; WAREVA, V.I.; ZAK, S.Sh.; USTENKO, T.M.
Determination of rhenium with ck-furyldioxime after the aeparation
of molybdenum by the extraction with a chloroform solution of
nitrone. Zav.1ab. 28, no.lls1316-1319 162. (MIRA 15:11
1. TSelinogradskiy sellskokhozyaystvennyy institut i Dzhezkazganskiy
goimometallurgicheakiy kombinat.
(Rhenium-Analysis) (Oximes)

D".7 V
2 C', 2

-LAZAREV, A.I.
Conjecture about the nall,ire -T' the luminous particle bservel
by astronautn. Dakl. Ali' ~)-)!;R 156 no. 2:306-307 thy V
(MIRA 17 - 7)
1. Predstavleno aka-lemikom V-11. Lirnikom.

RY A BCH.IKOV, D.1 .., LA ZAREV A., V,J. L AZ% A R-E'Vw
D'E~termi:--l7ion of
11; 17Y
kh-im. 20 no.O/:960-96c l
analit-l-l~,:~k,,y imeni V.I.
Vernadsk,--cro Ul SSSIy Moskva.

ABSTRACT: Since small amounts of impurities affect the properties of rhenium
it was necessary to develop a method for the determination of these impurities.
The photometric method was used for the determination of vanadium, nickel, tirt,
cobalt, manganese, iron, chromium and zinc. The optical density of solutions
was measured with a SF-5 spectrophotometer and a FEK-M photoelectric colori-
meter. The Beer-Lambert law was obeyed for the solutions of all elements ex-
cept vanadium. The amount of element was determined from the calibration
curve or by Chii-method of standard additions. Vanadium was determined from its
Card 1/3

~L:166
71-
ACCESSION NR-.-,.AP4045848 OT~
I catalytic effect:.,dn the oxidation of aniline with chlorate in a weakly acid medium.
At- room' -temperature the rate of reaction is Insignificant and the desired sensiti-
I vity is obtdified, by keeping the solution on a steam bath for 10 minutes. Nickel
was determined'.by the extraction- photometric method using atocC-fury1dioxime.
Copper interferes with this determination. Tin was determined using 9-phenyl-
2 * 3, 7-trih~droxy_ 6-,fluorone as the reagent In the presence of citric acid. The
molarextinction-coefficient of this complex at 505 mjxis 7.7 x 104. M
anganese
was determined as permanganate, produced by oxidation of divalent rnanganege
--with- -~ tTasiurEr-pe-riodate_lrorjL-waa::detiE~~. in ridyl complex witk
7Ained
n-w as. re- duce e
Aivalant Ilie -ir-o: --d tidlng_hyi roxy amin ,! -while thiourea, *as
iide was used as
.-an ercury
Used4br, mas ing,~copper, silver &m Mphe4ylcarba
the reagent for hexavalent chromium, Corn~lexon U11 was used to increase the
stabfflty of ethano ic solutions of diphenylcarbazide. Cobalt was determined us-
Ing nitro-P salt. Zinc was separated from interfering elements by extraction
and determined uaing,methylene blue. Orig. art. has: 1 figure and 8 tables.
6rd 2/3'

L 15999-66 EWT(m)/EWp(t) IJP(C) JD
ACC NR: AP5024W SOURCE CODE: UR/OOr75/65/020/009/0960/0965
AUTHOR: gyabehikov, D. I.; Lazareva# V. I.; LazaravP A. I.
ORG: Institute of Geochemistry-and Angytibal Chemistry Lm, V. LVernadski
AN SSSR, Moscow (InBtitUt geokhimil itanalitichaskoy khimli)
kinetici method
TITLFjs Determination of phenbm
SOURCM Zhurnal analiticheakoy khimii, v, 200 no, 9, 1965P 96o-965
~TOPIC TAGSt thenium, 5atalysis., selenium compound.. spectrophotometry
ABSTRACTs Small and'trace amounts of rhenium were usually determined from their
catalytic effect on the reaction between tellurate and bivalent tin in an acid
.-Mediums A13.expertment was made on substituting selenate for 4-ellurateo -Th6
+ 3Sn (1I)+8H3W4S4+3Sn(1V)+l2%0 is normilly ver9~ slow, but It in-
action S90~
breased no#Aceably in +be presence of rhaniui* The rate of catalytic reaction
_Card12 UD09

~~L 15999-66
AGG.NRt AP5024143
was to thO changes with time of the op4-ical density of observation
V of the reac+.ion for determining the rhenium, con+ent. A suspension of elemental
So was obtained in the ptesenoe of gun arabic. The opticil densi+y'of the sus-
measured by +he SF-5 speettopbotometerr, 7he transparent selenium
pension was
hydrosol, in the presence of gum arabic,, had a radish color* The maximal light
absorption was found in the ultraviolet part of +he spectrum., A study or the
catalytic affect of rhenium on the oxidation-reduction reaction between the
aelenate and bivalent tin, as a funefion of the type and concentration of acids
selbnatesp bivalent +in,, and foreign admixturesp produced a me+hod for the analy-
sis of phenium-con+aining-substanense Ybr the determination of rbanium in Golu-
tion,, 2 ml of Oe5M potassiun selonate solution# 2 ml of 2M,tartaric acid solutiont
.0,2 ml of 21, gum arabio solution# 3 ml of 0 45.M of bivelen+. - tin chloride in by..
drochl*ria agid (113)., and dio+11led water'to the mark. After 30-90-minu+.es
measure the op,444al density in a cuvs4-tq (*zdy) with a 10 mm Ivor at
380-400 M
in reference to the watera. Theduration of the color development, depends on the
~,content of rhaniuake The keforedca, experiment is necessary*- The content of
rhenium is determined by the method of.additionoo, Orig# art* bass 14 rormulasp
8 figures* and I tablet
OZ 'Su
SUB GOD& BM DATE t 25M%y64/-'ORtG Rapt 6M) OM Rut 00V
Q . I LI
2/2
LCqrd

'!Li
clwiou rip.; AP50WO70 S/OG32/65/031/003/0270/0272
AUTHORS. Lazargv-
A,.I*,* Tronina, Ye. N.
TITIZ., Deetermiaing small amntities of vanadiw. by the catalytic, effect of the
uo.-Dound,.3
ZI; t. Zavod 'Iray~-.-Iaborabcriyo,, v-., vq. 3, 1965, 270-272
TOPIC U93: photometry, vanaditm compourd, aniline, bromine, oxidation reduction
(~earf- i or
AB:~~TJPACT: Vie authors irmestigated L11-m catalytic affect of vanadates on the
reaction betwee-, an-irie ar-,-j bromate. Tiiney con$i-df3rC-d t~13
-q and
a of rsaction to depend linea-rlr on in cptical dwsity wit!i Ln e,
wa5 then studied I-Ahotomwitrica,11y, offoct'3 of bro.-'Late, aniline
and van-ada-to concentration wid af rv~j-dity, foreigi-, compo)luldS, a.rid time
t&~ in spaek-ing ~~he optimal ~,on-,Litions fo,-. the reaction. 'Iha
j-a-~..-ftua were crex-ried out at roan te-iperatuve_ The analy-tical is
I'Mad in the paper. 11, -gas found that tbie reaction rate is dim-ctly propor-
~,cnall to bmmate and vanadate co=entrations. The rate increases linearly very

~ _14C)0,3-65
ACCESSION 11R.' A250O.?670
rap, ildly with anilline aulfeta concentrations at low vajj_ies~ but r~=L mLire aim-!ly
rI ins to decline3,
a,t cono-entraticna above 0.01 raole/Ilitew; and at O.Oh raole/liter be-,
The color intonsiby is proporbionAa to -11"he period of reaction. 'rile reaction rate
tartaric, and altric acids ai-rd Trilon B
S on;s dlo.~M with increase in pq. L
dr-crenszi tho reaction nato . Pyrophospliate 1-ux,; no a Ppreciable ef -'ecIL . 'Ine Langent
n
d ixwd -time mattiods givEi sirdilar roEnilts. It ire-; f GurUf tilaik~ the rate of
fi
'd atio n-red-act ion reaction between bromatts Prd aniline ruty be by Ui
etic equatica
V 'P
va -L
iihere >t is th.-i cata.37tic coefficient and C is the concentration of reacti rig
--tance. The symbols r. arA n are unity for an, ani--rie coeffficient ip to 0.02 t-~
a-,j a vanadate cofifficiant up -,g ~.10-7 i,. At .1-gllier cancentratio- s ',he values
t, '~' I-- I I Ii I
11(..'r'line. -11he 11irioar deperderice of reaction rate on pli is due to iridrE,ase in redox.
Potentia], of the troriate-bro,%~.de system. wid to vanadiwm con-tent ir. solution. That
tfi~- reaction takes place in an acid ezrrirvnr~ent is i-Aication that tLe cation. is
t-ho active torm cf vanadium, Mien vanadium is bound in cor.:Iplexes b-i- s.xae r.-aagent,
th-:~ _,aaction rate da-alines. Orig. &rt., has: 2 figures wid 1 table.
Card 213

Caro' 313
--- --------

LAZARET A I - LAZAREVA) V.I.; REGUZOVA, Z.V.
.- I . 0 of
Metbod of differential spectraphotometry based on the mm--aBurem-ent of
photoelectric current by meana of plictoelectrocolorimeters. Zav. lab.
31 no,9slO64-1066 165. (MIRA 18:10)
1. Navomookovskiy filial Gosudarstvennogo nauchno-issledovatelfalcogo
i proyektnogo instituta azotnor promyshlennosti i produktov organi-
chaskogo sintweza.

EWT(m)/SWA(d)/MP(t)/z-WP(z)/EWP(b) JD
ACC NRt AP6000180 SOURCE CODE: UR/0032/65/031/012/1437/1438
AUTHOR: Lazareva, V. I.; Lazarev, A. 1.
e
OIG: Novomoskovskiy Affiliate, State Scientific Research and Design Institute of the
Nit :en Ifl43Ljj=_And Organic Synthesis Novomoskovskiy filial Gosudarstvennogo nauch-
no-issledovatellskbgo i proyektnogo instituta azotnoy promyshlennosti i produktov or-
ganicheskogo sinteza)
TITLE: Extraction of photometric determination of bismuth-in cast iron
SOURCE: Zavodskaya laboratoriya, v. 31, no. 12, 1965, 1437-1438
TOPIC TAGS: photometric analysis, microchemical analysis, bismuth, cast iron
ABSTRACT: The feasibility of the iodide method of determining trace quantities of bis
muth in cast iron is investigated. Ascorbic acid, thiocarbamide, potassium iodide,
and citric acid were added to a solution of cast iron. The bismuth complex was ex-
tracted by ethyl- or mylacetate. Bismuth was separated from the extract by means of
a citric acid Solution of pH = 9. The final bismuth content was determined after re-
extraction by the iodide method; ihe sensitivity of the method was as high as 5-10-4%
from 1 g suspensions. Tabular data were given as follows:
UDC: 546.67 543.432
card 1/3

12926-66
ACC NR% AP6000160
Determination of bismuth content in cast iron
Added Bi, Found Bi Error
micrograms micrograms 1003%
23;,24; 25 2.4 --
Is 43; 45; 47 4.5 +7
40 4.0 +11
7 0.7 --
27 2.7 +8
Antimony (III) in quantities up to 0.3 mg/ml did not hinder the determination. The
details of the method are given. Optical density was measured on an rEK-K-57 with a
blue filter (A 2 453 millimicrons) in a 50 mm cuvette, and compared to water. The
eff,
b.ismuth analysis was based on the formula %B1 D. a.2500,-
D.+. -. D,
where a is quantity of added bismuth; Do, and Dx+a are- optical densities of dwMay
Card 2/3

LAZAREV, A.I.; PINEGIN, N.I.
... .....
Threshold light intensity of moving point aourcfia. Doll, All
SSSR 161 no.4%958 Ap 165. (MIRA 18:5)
1. Submitted July 24, 1964.

ACC NR-. Ar6019018 /V) SOU,-V',E OODZI:
11OU"I'MAz Lazarav, I.; Dazrxeva, V. L; Ulzsh3~ 1;.
ORG: Instituto of Nov Chemical problema, Z S.SSR (Insti-,,ut novy].--
problem- Alcadozii nauk SSSR)
TAITLE. Detonaination of titani= in titanium nitride b.( T;hOtOmO'trio titration in a
photometric colorimeter
-Ouillifil. Zavodskaya laboratoriya,, v. 32, no. 1. 1966, 24-25
LOPIC'TAGSz titani=, titanium compound, phot motric analyr;Jo, colorimotrIc "a-'y3is
GO
L
ABSTRACT. Fhott-ocolorimetric analysis is carriod out in a FE.K-typrz -r otoo3octrocol-Orl-
=o'er by usino two mothods. The first mnothod requires -special duvicr-n. a
lalepipida wooden cell holder, and a mixer. T~,a second ncthad i--i jec-,s
does not require any npocial arran,,ge-mont . Titrant io addcd into a fla.911: containit.,'~', a
i- atod solution? the cell in fillcd with a colorod -,olaWLoll
v ur ~
urod with rospoct to wcter, the nolution is a,,,,ain purv;d frai-ii tho-coll into tho
otc. Solutions having an initial absorbanco of -,-'l (boLt-Ir,-0-5)`Shoul6 bo u:icd %i-jth
v
a noUcaably high abcorption or lij,~~A and wl'hout !,:arjL/,CUrrCI','
41. 'CO ILI, fla"!1--, "D '71
nizaking the analysis, an 0.3 v, camplo of M' iiltrido I n placc;ra
of HZS04,3olution (1i1) and 2 g of Zia nitrato aro added, and tho,zixturo is hoatcd. 'IZ
Card

ACC NR: AP6Ol90l8________
sample is not dissolved, tlaea tiia rolution is coolod, C.f~' ~-' of zitrat6 is al-',Cd
and tho mixturo 1,s heatcd up to ;;ha ol' libjer,~JLior. of
pGrmitting precipitation. The coolcd solution is trancfe:.-rcd 1*.-,-,w a _--L~ L~l
flask, 0.5 N H SO solution is added, 1 -.1 of 1;orhydzol is poured in, and
2~C4 e_it 1- 4 -' - -' qi~a - z;ar- of "a sc-u'-Irz
the content is ou , to the marl, wi th the sane acid. A~n al-L U
I is then placed in a titrating glass and noutralized with 10,,'%' solution of :'a'OH until' L
We6k, YGIlOWiSh-0:0011 Color