SCIENTIFIC ABSTRACT SINYAKOVA, S.I. - SINYAVIN, M.P.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001550810018-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 24, 2000
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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On the dlaWbution of lead In soils. S. 1. Sinxvkova~
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II?oIAro_,-:raphic Deterridnation of Indium, Cadmium, Lead and Copper in tile
cl 4,
.,)112r,-rit?-s mrl Otli;~r PlincrvlE,11
ZhLr. Analit. Khim., No. );,

F
Hooductim lot nitrate Ion an a droWnit-morimy clithooft
Polittogrophic Morrominsition of r"Irmle lutrogion In to,
dgents. _:J.. - ,inyallova ind U. C.. Karjumo.-h. I ~Jt
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~~a% ittulk-d tit imin,. -4 Ia, N41, Cr, Co. .111ft .lm
A4,616. Anil #,oiw anima. In 1ACI,mid NJCI, i
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ill indicite ttuxt ititrl,h- moll IsydrmyLsinitic it,- formv.1
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010CIIIIS AND P10014111% -099

2MO. DEMMINATION CF MWALS IN LUBRICATING OILS BY POLAROGRAPHIC lee
S
MLMHOD. 31nyaUova,
ftrovaya, 14. S. and Gavrikovs, K. A. 1*0
_
(Zh. Anal. Khiz.'(J, Anal. Chem.)# 1950, vol. 5, (6), 3)0-336). lee
IS*

to, Cu, And Ph are Inemplotely extracted from lubricating oils I**

411
by treatment with HCI, but extraction from the ash to coqAots.
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al.)
and a portion polarographIod In 1
2
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,
,
X-HC1 after removal of 0 . For Cu the extract of the ash In WI(2-3 al.)
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lee
HC1 (5C ml.), the oil finally washed with hot water (5o xa.), the

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Chemical Abstracts
May 25, 1954
Analytical Chemistry
!.-Vse of complext Deterndnation
of ~Spjtunva kfUa~ ~..er~adst 'T Ins,-,r-e-
WAWUM S. 1--,
chenr-AM.M. CEO
SX.,
n,; C
w.. d td. polarograpid-
callytinTrilanDcoinpl"iiiaNaOAcsoin. Theoptimurn
tondition for this detu. I- in a. 2M NaOAc solu. which Is
o.jAr witt, respect to Triton B. The pit of the soln. is
4.5--5.0. Under these conditions the R... - -0.47.3 v.
The Ti content is best kept at 2.3.1 X 10-4 2 34 X 10-1
rnr)1Lq/1. It Is preferable to dissolve Trilon 31. NaOAel
soln. and to this add the Ti soln. Fe, V, and Co inter."
fere and should be removed. Cr is practically without
effect on this detu. At. HDWJA.-

UM/Chemistry - Polarographic analysis
Card 1/1 1 Pub. 145 - 1/10
Authors I Gokhshteyns Ya. Pe; SirWakova# 3, L; and Yukhtanovas V. D*
Title I Adaptation of 03cillographic polarography for quantitative
determination of Ti
Periodical Zhur. anal. khim. 9/5.9 255-264P SeP-'Oct 1954
Abstract A method for polarographic or oscillographic determination of
Ti in the presence of Fes Vs Cr, Ni and other metalss was developed*
The mechanism of reduction of Ti complexes and the stability
factors of tartrate, citrate and oxalate Ti complexes in 1-2 N
sulfuric acid, are explained. An acid medium. saturated with
sodium oxalate was found to be most suitable for Ti determination&
The effect of Fes V. Gro Ni and No an the magnitude of maximum
Ti current, is elucidated* Eleven references: 6-USSRI 1-USA;
1-Belgian and 3-Ozech (1932-1953). Tables; graph3;-111m trationso
Institution t Acad. of Sce USSR, The Vo I. Vernadakiy Institute of Geochemistry
and Analytical Chemistrys Moscow
Submitted t March 33, 1954

V
and d~-fr sigaffic III cc in anAl"rticall
j5j,-jMpyj It. ~j~a. (V, I. Vera ad ~,,df ins t.

(Engl. are defined as a group of
complex-for.-ving o-,rupd- extensively Lmd 41 chemistry
and particaLffly in analyticol cheniistry. Tize coznplexi=s
Eoc amlimpolycarl-~)xylic acidu awl their derivs. in which at
Itnut 2 A~Qfi io:iMu,%i ate with N, Th, simpkst
vi the:ic cr'llif-dr. i.~ ileld
f "
~ir
-
The uw o
tljp;c culnpds~ ill allApb I, ll~vitwvd.
147 Werercca t
it
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41

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Pr

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-Tit

75 -13-2-5/27
AU111HORS s 6iryj.%o-;jt,. S. I, , Glin' i na Ir
TITLE: Use of CouT)lexone3 in Polaro--,ra~_~y (Pril-wrieniye kozapleksonov
C, -
v polyaroj~afii) Conmunication !--'. ',-,he 3---havior of 1401j-bdenum
on a Dropping-7,*.ercury Zlectrode in Ccmplexones (3oob3hcheniye
2. PovedeniYe iiolibdena na rtutnon elek1rode na,

PEiIODICAL: ';hurnal Ar, alit icheskoy 12)imii 1958~ Vol~ 13, Nr 2,pp. 186-192
("TSSR)
ABSTRACT: In spite of numerous investi,,-ations (Refs 1 the mechanisa
of the electrode reactions of the molybdate ion is not yet
explained. Above all there are up to now no clear data- con-
cerning the nature of the ions of molybdenum in the case
of different pH-valueQ. Many authors are of the opinion
exists only in the cnse of
that the nolybdate ion '00 2
pH,-v---lues >,, 7, whereas in 36lutions which are acid to a
greater extent the ions , 4- 6- 10-
7,100 and
'
'
~io 0 Mo 0
,
6 21
12 41
3 w
Card 1/115 Mo, 012- are formed. In the case of DU -1 molybdenum can
e. 4 7,9

75-13-2-5/27
Ut;,-. of Complexones in Poiaroqraphy. Communication IT. The Behavior of
Molybdenum on a Dropping -_'.~e rcury Electrode in Complexones
occur in the solution even ao cation. Some investigations
deacribed in publications deal with the behavior of the
molybdate ion on a droppin,-.-mercury electrode in the Dre-.
sence of complex-forming substances (Refs ~)_' In the
present paper the results are .-iven of examinations of thE
behavior of UL'le complexes of Molybdenum wit' the complexon
I (nitrilotri.acetic acid) and coriplaxon III (di-3odium
salt of the ethylene diaraine tetraacetic acid),, --a well as
with several new coimplexones in dependence on various factors
(PH,, concentration of the coraplexon, hei.-ht of the mecury
column, etc).. Molybdenum yield's with complexon I a well-
-marked reduction wave in acid soluti,-,ns. The half-wave
potuential depends on the pll-value.. in alkaline aolutions
(pli 8-10) no wave occurs which points to the instability
of the complex in alkaline solutions. The optimun condition
for the formation of the wave of molybdenum is a pH-value
of from 4;5 - 5,5. The reduction of molybdenuri takes a
complicated course in presence of couplexon I; in the case
of certain VH-values interiiediate sta-Jes develop. Since the
amount of the diffusion current of molybdenum in Vie pre-
Card 2/ 5 sence of complexon I depende to a E;reat extent on the pli-

75--13-2-5/27
'"he Behavior of
Ulsb of Complexones ir, PolaroCraphy. Co=wnication Il. I
;.Iolybdonum on a DroppinC-'-fercitry 'Electrode in COmplaXOnOS
-value of the solution, an aplAication for quantitative
determinations is not expedient. "Iso in the presence of
complexon III the character of the polaroSraph of molyb-
denum dcl-ends to a frreat extent on the pH-value, on the con-
eciltration of the complexon III,. and on~ther conditions.
C,065 v;a3 found to be the :,,ost favorab-le concentration of
the complexon. In the investi6ation of the influence of the
pH-value it ras found that the wave vanishes in alkaline
solution (p171 > ~)~ The diffusion current increases-.qith in--
creasinr 1.11-value fbe,~;LwAn.&- with pll 2,5), and passes a
maximum at PH 5,5. Then it decreases and reaches a value
of 0 at a pill - 0. "Therefore a pH of 5 5 is best suited
for determinatione, '2he limiting current obtained for molyb-
denum was found to be determined liv the diffusion, since it
depends on the heiaht of the mercury column. 'The conStant
of t1B diffusion cur.rent of moljbdenum changes with its
concentration. It increases with decreasirc, concentration
of molybdenuui. In tile case of a concentration of the latter
, value of the constants, of the diffusion
Card 3/5 of le,5jo-14 r, tnp

75-13-2-5/27
Use of Complexones in Polaroll-raphy. Communication II. The Behavior of
Molybdenum on a-Droppingr-llercury Electrode in Com7lexones
current corresponds to a transition of 3 electrons, i,e. 'the
reduction of ,,o(VI) to llo(ID). In the investigation of the
influence of external ions in the polarographic determintion
of molibdenum in ~he presence of complexon HI it was found
+ 2+ -
that Fe and Cu. r-2duce. the limiting current of molybdenum
whereas the ions of Pb, Zn, V and To' exercise practicall,, r no
influence. The reduction of molybdenum in the presence of the
di-sodium salt of benzhydrylamino acetic acid, furthermore
in the presence of hexamethylenediamine tetraace-tic acid and
cyclohexane diamine tetraacetic acid aas investigated, too.
Summarizing it was found that molybdenum is in all cases re-
duced in -acid zolutions, uhereas no reduction -wave is formed
in alkaline solutions, '2he half-wave jotentials and the ma,-2_41_
tudes of the diffusion currents of molybdenum are to a great
extent dependent on the pll.-value. It was found that complexon
III gives tha best results for analytical purposes~ There
are 9 figures, 5 tables, and 14 references, 6 of which arc
Soviet.
Card 4/5

1 75-13-2-5/27
Use of Complexones in Polarography. Communication II. The Behavior of
Molybdenum on a Dropping-Mercury Electrode in Complexones
ASSOCIATIONs Institut gookhimii i analiticheskoy khimii im. V. I.
Vernadskogo AN SSSR, Moskva
Odoscow Institute of Goochemistry tind Analytical Chemistry
imeni V. 1. Vernadakiy,AS USSR)
SUBMITTEDs May 27, 1956
1. Molybdenum ions--Chemical reactions 2, Acids---Chemical reactions
3. Mercury electrodes--Chem-ical effects 4- Polarographic anal:jsis
Card 5/5

:5 1 M