SCIENTIFIC ABSTRACT LAPITSKIY, A.V. - LAPITSKIY, A.V.

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


USO/Inorganic Chemistry - Cmplm Compounds. C.
Abs Jour : Ref Zhur - Khimiyal No 91 1957, 30328
Author : Spitsyn Vikt. I., Lapitskiy, AN.
Inst
Title : Thermographic Study of the Process of Interaction of
Nidbium Pentoxide with Caustic Soda.
Orig Pub : Zh*' neorgan. khi3zdi, 1956, 1, No 8, 1771-1775
Abst : By a thermographic study of mixtures of Hb,;05-(:E) and
HaOR (II), taken in different proportions by weight, it
was ascertained that I reacts with II at 130 to form
N%-NbOs-(III), vhich is present in the alkall melt*in
equilibrium with the excess of II. It is shown that the
niobates: NaNbOj-3-5HAO, Nai#NbjkO.?,,-32H~P (1-7) and
NafibO3 interact at above 100" with II to form 111. Thus
III is formed in melts containing excess II. The authors
assume that the process of interaction of Sh-niobates
with II takes place with a slight exothermic effect but
the latter is masked by the endothermic effect of the
Card 1/2

IJSSR/Inorp.uic Chenistry - Complex CMpounds. C.,
Abs Jour : Ref'Zhur - Mimiya, No 9, 1957, 30328
process of dehydration of the niobate and fusion of the
excess T-T. On action of vater on the investigsted alka-
li melts, there is formed IV, as a result of hydrolysis
of T-TI.
Card 2/2

USM/Inorganic Chemistry - Complex Compounds. C.
AbsJour : Ref Zhur - Khimiya) No 9, 1957, 30329
Author : Lapitskiy, A.V., Spitsyn Vikt-I., Pchelkin, V.A.,
IV, IFU -P
Inst
Title Thermographic and Roentgenographic Study of the Process
of-Dehydration of the Niobates.of.-Sodium and Potassium.
Orig Pub Zh- neorgan. Ichi-ii, 1956,1, No 8, 1776-1783
Abst Study of the process of dehydration of hexa- and metanio-
bate's: 27HAO (II),
NaNft 037-32HxO M, Klqffb,,xO37-
Ndffb(~ -3-51~.O (m) and xNb63-%.0 (IV), by mean of a
continuous operation balance, a MeBain'balance and a
Kurnakov pyrometer. The existence nf the following hy-
drates was confirmed: of i with 6, 4 and 2 molecules
of H.0, in the respective Zemperature ranges, 80-3250,
Card- 1/2

PCHNIZIN, V.A.- LLPITSKIY, A.V.- SPITSYN, Vikt.I.; SIMANOV, Yu.P.
14-
--1-
dMa6rA I
Thermography and radiography of the dehydration of hexaniobates
of certain bivalent metals. Zhur.neorg.kbim. 1 no.8:1784-1793
Ag 156. (MIaA 9:11)
1. Moskovskiy gosudaretvenW universitet imeni M.V.Lomonosova,
Kafedra neorganicheskoy khimil.
(Dehydration) (Niobates)

IJLPITSKIY, A.V. Doe Chem Sci -- (diss) "Study of niobates and
M,'\/
tEmtalates". hos,1957. 22 pp 22 cm. (Mos State Univ im Lomonosov)
A
100 copieB (KL,9-57, 100)
---6

pit r
Mo re&ctlon of Ta.-Z), with C Ui a 9 ntmoahere, at IlGD
pmUda to the formatioD of the tnonoxide. II was (awW
thst the heating of M~A with C Ott 1200' Ln vacuo to nol
-aceoraWled by the form Uou of zl=%D3i CIFtRdO. CM UM
hasle odcompartng the beats of for-mallon and the heaU of
Ch---iMpvcUtan of the jxLdes and C&rLIdea [ Mb aad 7)a, it
was concluded Oat k 1. t5 I MPOS8;DIC W tbC C &rb!d6'3
ur-lor the cco-cluoao "ed h to -affbizabl-d
ihnt. M 1100* met;,Uic~ M and Tu m* oxidilzed by CO, to
tAwir higher axidea. Carb= moooxtde ojurttzc, Nb ead To at
"to Lbtir InonOXI&a. mah)

of th
mtsit -it lmd
"N gyz_;- 7A
'J~ --
I I V. ; -

iz
M. lar --al P,,
Sh d
LAM
KI Im
YO. KN~Z-~~t4munj Mct=lobate
Ilud
cxc-,~ 'as StEld'Ed [It 20'
"' 21-1hYd. "IL, ~ud'
p ft&T - A;
na corn'jejj)~ hid of
- t
ge bet
t temp, and
13 '14-0c, y

- ----------
MP.~.'SKIY, A.V.; NISMOV, D.
Studying the dehydration process of sodium tantalate and potassium
tantalate. Zhur.neorg.khim. 2 no.7:1516-1521 Jl 157. (MIRA 10:11)
1. Hookovskiy goeudaretvennyy universitat Im. M.V.Lomonomova,
kafedra neorganichaskoy khimii.
(Dehydration (Chemistry)) (Sodium tantalate)
(Potassium tantalates)

1~2,
LAPITSKIf, A.V.; NEBYLITSYN. B.D.
----~~Metaniobate and metatantalate of iron (II). Vest.Mook.un.Ser.
mat.,makh., astron., fiz.,khim. 12 no.2:199-207 157. WU 10:12)
1.Kafedra neorganicheekoy khimii Moskovskogo universiteta.
(Iron niobate) (Iron tantalate)

AUTHORS: Nishanov, D.,~ Lapitskiy, A. V. SOV156 5F-1-112,146

TITLE: Some Proper'~-i6-j--of-tl-e-A--q-u-e-o-t~s~olutions of Tantalates and
Niobates (Ifekotoryye svoystva vo-dhykh rastvorov tantalatov
i niobatov-)
PERIODICAL: Nauchnyye doklady ~rysshey shkoly, Khimiya i khimicheskaya
tekhnologiya, 1958, Nr 1, PP. 46 -- 50 (USSR)
ABSTRACT: In the case of the decomposition of alkaline and carbonate
melts which contain tantalum and niobium by water hexa- and
penta.-tantalates and hexa--niobates of sodium and potassium
are formed. Several physical and chemical data are still
lacking for the solutions of these salts. This was the reason
for the present investigation. The authors define precisely the
method of synthesis of sodium and potassium aqueous tantalates
and give their analyses. The pH-values vr-re measured by means
of a glass electrode on the apparatus LP -5. The electric
conductivity of the solution was determined at a slide wire
bridge of the type R-38. The results are shown in tables 1-5
and figures 1 and 2 is the average of two parallel measurements.
Card 1/3 The figures show that the specific electric conductivity of

Some Properties of the Aqueous Solutions of
Tantalates and Niobates
Card 2/3
the solutions rises linearly and has a
expected for such compounds. This may
by the fact that the conductivity of tie
of the salt was measured. The specific
sodium.-hexa--niobate solution is lower
potassium hexa-niobate of analogous coicentration.
apparently to be led back to the diffe-ence
of the sodium.- and potassium ions. The
earlier a chemical interaction between
and the niobates in the aqueous soluti)ns.
this circumstance as well as in view
the publicatioas on the absorption spetra
the salts in question. the authors meaured
densities for different wave lengths ii
at the spectrophotometer UP-4 with a
SOV. 156-56-1-12/46
higher value than
)robably be explained
hydrolysis products
conductivity of the
;han that of the
This is
of the mobility
authors assumed already
the sodium hexa-tantalate
With respect to
)f the lacking data in
of the solutions of
their optical
the ultraviolet range
iydrogen lamp. This
was carried out for single --omponents as well as for solutions
with a niobate hexa--tantalate mixture. Figures 3-5 show the
values found of the optical densities. it is shown that the
values in the case of mixtures (Diagram 3) are lower than the
expected values which were calculated from the additivity

'10
Some Properties of the Aqueous SolutionG of sov/i56.58-1-12 IA'
Tantalates and Niobates
(additivnost') properties (Diagram 4). This behaviour of the
sodium hexa-tantalate and of the -niobates indicatez a chemical
interaction between them. The extent of the process is in the
case of the meta-niobate greater than in the case of hexa-niobate.
There P-re 5 figures, 5 tablos, and 8 referencPs.
ASSOCIATION: Kafedra neorganicheskoy khimii Moskovskogo gosudarstvennogo
universiteta im.1-J.V.LomonosnvP (Chair of Inorgmic Chemistry of the
Moscaw State University imeni M.V. Lmonosuv)
SUBMITTED: September 27, 1957
Card 3/3

AUTHORS: Nishanov, D., Lapitskiy, A. V. SOT,156-58-1-13/46
TITLE: Investigation"~' ~the ~Exchaa, 3e~ten Sodium Hexa-Tantalate
and Some Niobates (Izucheniye obmena mezhdu geksatantalatom.
natriya i ncl ~*!-,-,ym-;' niobatami)
PERIODICAL: gauchnyye doklady vyGshey shkoly, Khi7niya i khimicheskaya
takhnologiya, 1956, lir 1., pp. 51 - 53 (USSR)
ABSTRACT: The aqueous niobates and -tantalates are isopoly.-compounda.
The problem of their structure is not yet settled. The authors
try in the present paper to determine a similarity in the
structure of the niobates and tantalates. For this purpose
sodium- and potassium hexa-niobates were chosen as well as
aqueous potassium metaniobate and sodium hexatantalate. One
of the sodium hexataptalate preparations was labelled by
means of the radioactive tantalum isotope Ta182. For the cal-
culation of the effectiveness of the exchange between hexa-
tantalate and niobate first the amount of the isotopic ex-
change between the satvrated solution of the sodium hexatantalate
and its precipitation had to be determined, which contains the
Card 1/3 radioactive isotope. The obtained results yielded an exchange

Investigation of the Excliarge Between Sodium Hexa.- CZ01/156-58-1-13/46
Tantalate and Some Niobates
degree of approximately 1,Ylo, This value remains practically
constant evon if the solution was stirred during 8 hours.
The isotopic exchange tal-N.:3 place here prol3ably only in the
surface layer of the cryatals. The velocity of' the exchange is
limited by the velocity of the recry-stallization of the bottom
sedivients. It is, howe-er, also posEible that various tantalum
atoms in the salt molecules are not equivalent. Table 2 shows
the experimental results of the exchange between the aqueous
potassium metaniobate (concentration 3,97 mg/ml) and the
sodium hexatantalate (3942 mg/ml). These results show that a
complete substitution of the niobium by the tantalum of the
precipit-aticn takes place in the solution. In the case of
an exchange between sodium hexaniobate and sodium hexatantalate
(concentrations recalculated for pentaoxides = 2,79, 4,05
mg/ml, re'spectively) a similar complete exchange was observed
(Table 3), Table 4 gives the results for the exchange between
potaasium hexaniobate and sodium hexatantalate. In contrast
to the two above mentioned cases the substitution of niobium
Card 2/3 by tantalum is consiocrable, it is, however, imperfect. These

Investigation of the Exchange Between Sodium Hexa- SOV~156 -58-1-13/46
Tantalate and Some Niobates
results are apparently somewhat unusual. They may, however,
be explained by an assumed interaction between the niobates
and the tantalates under formation of complex ions. There are
4 tables and 4 references, 2 of which are Soviet.
ASSOCIATION: Kafedra neorganicheskoy khimii Mosknvskogo gosudarstvennogo
universiteta im.14.V.Lomonosova (Chair of Inorgmic Chemistry of the
Mose-w State Unkv'ersity imerut M.V. Lomonoscrv)
SUBMITTED: September 27, 1957
Card 3/3

5 (2)
AUTHOR: SOY/55-58-6-16/31
TITLE: On the Reaction Products of Niobium Oxide and of Tantalum
Fentoxide With Caustic Ilkalies (0 produktakh vzaimodeystviya,
pyatiokisi niobiya i pyatiokisi tantala a yedkimi shchelochami)
PERIODICAL: Vestnik Moskovskogo universiteta. Seriya matematiki,
mekhanikip astronomi'i' fiziki, khimii 1958, Nr 6,
pp 121-126 (USSR)
ABSTRACT: The separation of the*-elements'mentiolied is brought about
usually by'melting with caustid alkalies and leaching out the
alloys in water. The products formed during this process have
as yet been only little inveitigated. In this paper the
composition of the products formed by this proo"s are
investigated. In earlier papers by V. 1. Spitsyn (Ref 1) and
by the latter and N. N. Shavrova (Ref 3) compounds of the
composition Na 5TaO5 had already been found. In continuation
of these works, new knowledge of the interaction between the
oxides mentioned and caustic soda and caustic potash could be
acquired. Obtaining of the initial products was described
Card 1/3 by reference 1. The data obtained by analysis are given. The

On the Reaction Products of Niobium Oxide and of SOV/55-58-6-16/31
Tantalum Pentoxide With Caustic AlkalieB
description of individual investigations (experiments with
various concentrations of caustic alkali solutions) is rather
detailed. Investigations showed that in the interaction of
tantalum pentoxide with caustic soda solution, various
aqueous.tantalates are formed (otthotantalate, pentatantelate,
and hexatantalate of Na) in dependence on the concentration
of caustic alkali initial solutions. Further, the refraction
index for penta- and hexatantalate was exactly determined. The
process.of decomposition in the leaohing-out waters of
tantalum and niobium is investigated and for the mechanism of
the hydrolytic separation of the highly-baoic niobates and
tantalatee the following scheme is given (Tables 1, 2):
Me 5NbO5+H2O=Me 3NbO 4+2MeOH me5 TaO5+H2O-Me3TaO 4 +2MeOH
6me NbO +H O=Me Nb O19+1OYeOH IOMe TaO +8H O=M0 Ta 0 +16MoOH
3 4 2 a 6 3 4 2 14 10 32
2Me8 Nb 60 16+H2O-Me 14 Nb 12037 +2MeOH 3Me 14%10 032-E20=5Me8T4601 9+2MeOH
The crystals of these compounds wero investigated under the
microscope and were confirmed by general chemical analysis.
Card 2/3 Hexaniobate and hexatant'alate are fully separated in the

On the Reaction Products of Hiobium Oxide and of SOV/55-58-6-16/-)l
Tantalum Pentoxide With Caustic Alkalies
presence of free alkalies, which is of importance for the
separation of ore inclusions. There are 2 tables and 12
references, 7 of*whioh are Soviet.
ASSOCIATIONs Kafedra neorganioheskoy khimii (Chair for Inorganic Chemistry)
SUBMITTED: September 25, 1957
Card 3/3

A V,
ALBMIA Cosmochoniatty. Geochomistry. Hydrochumistry. D
AbB Jour : Rof Zhut - KhimiVa, No 14, 1959, No. 49o13
;, and ffirobilicin, V. D.
Author -
Inst 'Tirana UniVersity
Title Noto on the Goochomical Properties of Niobium
and Tantalum
Orig Pub Bul Univ shtotor Tiranos Ser shkonc Natyr, 12,
No 2, 127-131 (1958)
Abstract Nb and Ta possess a weak tendency to geochemical
migration which is explained by the very low
solubility of their compounds and by the thermal
stability of those compounds. Both of the above
facts arc in agreement with published datn on the
lattice onorgioa of Nb- and To-minarals.
-- N. Borling
Card 1/1

AUTHORS: Lapitak4y-r-4-a., Nesmeyanov, An.N., SOV/32-24-9-38/53
Allekhin., S.P.
TITLE: Thermostat With Inset for Determining the Solubility (Termostaty
s nasadkoy dlya opredeleniya rastvorimosti)
PERIODICAL: Zavodskaya Laboratoriya, 1958, Vol 24, Nr 9, PP 1150-1151 (USSR)
ABSTRACTs To determine the solubility under isothermal conditions some
parallel experiments must be carried out simultaneously, for
which purpose the usual thermostat TS - 15 is not suited. For
this reason a thermostat with a special inset was constructed,
the design of which is given. In principle this inset consists
of'a metallic heat-insulated cohtainer in which six vessels are
located. The latter have one stirrer each whereas a seventh stir-
rer stirs the container. The stirrers are driven by an electro-
motor by way of a mechanism which secures a simultaneous, equal
-revolution. A schematic representation of the thermostat plant,
as constructed by the Engineers P.I. Mishkin and A.I Natman, is
control within the range 200 1800 could
given. The temperature
0
be maintained to + 0.1 . There are 2 figures.
Card 1/2

Thermostat With Inset for Determining the Solubility SOV/32-24-9-38/53
ASSOCIATION: Yosko-7skiy gosudarstvennyy universitet im. M.V. Lomonosova
(Moscow State University imeni M.V. Lomonosov)
Card 2/2

Pi 75
AUTHORS Spitsyn., Vikt. I., Corresponding Member of the All USSR, 20-1-30/56
ic~iz N_V,,., Aistova) R. I., Nishanov, D., Pchelkin., V. A,
Studies of thet
TITLE: Isotopic Exchange of Oxygen Between Heavy-Oxygen Water and Some Nio-
bates and Tantalates (Izueheniya izotopnogo obmena kisloroda mezhdu
tyazheloki,qlorodnoy vodoy i nekotorymi niobatami i tantalatami).
PERIODICAL'. Doklady AN SSSR, 1958P Vol. 118, Nr I., ppe 107-109 (USSR).
ABSTRACT: Individual authors (referencea-1-8) ascribe different structures to
the niobates and tantalates~, In several cases the part played by the
water and the position of the water are not taken into account. All
pertinent papers except references 9,1o deal witb the character of the
binding between the central atom and the oxygen atoms. in the paper
by Spitsyn, Aistova and Vasiltyev (reference 12) the method of isoto=
pie exchange which was also employed by the authors in the present
paper was employed in the investigation of another binding. In the
tests they-used water enriched with 0'16(1-.,26 atom-0/o Olt). The ex-
change'was carried out at 9500 in saturated solutions of these salts;
sodiwmpenta- and -heza-tantalate., as well as potassium-hexa-- and
_meta,.~niobate. The duration of test was 5 hours. B.T hydrolysis the
solutions had an alkaline reaction (pH = 11-12). The method was de=
Card 113 scribed in the above-mentioned paper (reference 12). Table 1 records

Studies of the:
Isotopic Exchange of Oxygen Between Heavy.*xygen Water and Some 20-1-30/58
Niobates and Tantalates.
the test results together with the calculated values of the C~g h-Cono
tent in the solvent after the completed exchange. brom. this, may be
seen that not only the oxygen of the water bound in the tantalates
enters into the isotople exchange, but also the entire oxygen from
their anlona. Further all experimental values of 0 -content in water
were much.smaller than the calculated ones. These deviations lie out=
side,the experimental error. These results may be explained by the
fractionation of the QVgen-isotope which proceeds in the direction
of the enrichment of the salt with heavy'isotope (references 12,14).
As follows from table 21, a complete exchange of oxygen from the wa-
terj as solvent, and from thd anions of these salts also takes place
in the case of potassium-hexy- and -meta-niobate. But no enrichment
of the salt with heavy oxygen-isotope takes place here, This diffe-
rence is apparently brought about due to a higher molecular weight of
the niobates as compared with the tantalates. As regards the tantala=
tes investigated,, in this respect they approach the aquo-poly-tungsta=
tes. Thus all oxygen atoms of the above-mentioned 4 salts and combi-
ned water are accessible to the isotopic exchange with water as a
solvent. The epilibrium is comparatively early attained (within 5
hours).
Card 2/3 There are 2 tables, and 114 references, 7 of which are Slavic.

Studies of the: 20-1-30/58
1&otopic Exchange of Oxygen Between Heavy-03Wgen Water and Some Niobates and
Tantalates.
ASSOCIATION: Institute for Physical Chemistry AN USSR (Institut fizicheskoy kbimii
Almdendi. nauk SSSR).
Hoseav State- 1Ehdv6rs:Lty Imni Me Ve Lcqonosov-. (Moskovskiy gosudarst-
vennyy universitet imeni, M.- V. Lomonosova).
SUBMITTED: July 25, 1957o
AVAILABLE: Library of Congress.
Card 3/3

5 0Y PHASE I Book EXPLOITATION Soy
/1648
Nemkova I. Burova, (Deceased), O.J. VoroblyeV6, Ye.A.
bpP3917tov'a,, and A.V. Lepitskly.
Rukovodetvo k prakticheskim zanyatiyam po neorganiche0koy khimii
(Handbook. for- Laboratory Work in "~ 'norgahic Chemistry) Moscow]
Izd-vo Mosk,-univ.,'l959,_2qq p. 15,000,CoPies printed.
an d'e book):
Ed* (Title,page): M' Spitsynp Acadeadei ; Ed. (In
S.F.'Kondrashkova; Tech. Ed.: L.V. Lazareva.'
PURPOSE: This handbook is intended for beginning students in chemistry
departments.o.f,state universities.
COVERAGE: The book consisting.of 35 chapters deals with the most
Important aspects of general and inorganic chemistry. The authors
attempt to cover the properties of elements and their compounds as
well as the synthesis ot various inorganic compounds. The handbook
should-ine-aleate in sttidents the habit-of assembling and using
moderst laboratory-equipment. Second semester students are expected
Pard :i/f

21(8) 5(0).
AUTHOR: Lapitskiy, A.V. SOV/55-59-3-29/32
TITLE: The-First All-Union Conference of Universities and Colleges
on Radiochemistr

PERIODICAL: Vestnik Moskovskogo universiteta. Seriya matematiki, mekhaniki,
astronomil., fiziki, khimii, 1959, Nr 3, pp 221-223 (USSR)
ABSTRACT: Thi a conference was convened by the initiative of the
laboratoriya radiokhimii khimicheskogo fak-ullteta 11GIJ (Labora-
tory of R.adiochemistry of the Department of Chemistry of Moscow
State University) and was held in Mosool from April 20 to
April 25, 1959. It was attended by professors, teachers, and
scientific oollaborators of 32 universities and colleges of
the Soviet Union. In his opening address? An.H.Hesmeyanov,
Doctor of Chemical Sciences, stressed the importance of radio-
chemistry. 30 lectures were delivered by members of Moscow
State ~niversi~ty: Laboratoriya yadernoy fiziki (Laboratory of
Nuclear Physics), 11,P,Rudenko, A.I.Sevasttyanov: Production of
Beryllium-7 by. I.Stary, N.P.Rudeako:
Production of Radioactive Isotopes by Ntraction as P-Diketonalbs.
Ca rd 1/4 Laboratoriya radiokhimii (Laboratory of Radiochemistry): An.~~N.

The First All-Union.Confarence of Universit�es SOV/55-59-3-29/32
and Colleges on Radiochemistry
Nesmeyanov, Korolev, L.A.Sazonov: Separation of Radio-
active Isotopes in the Irradiation of Colloids)l AnN.Nesmeyanovq
Xg.A.Bog.tegy, E.S.Filatov, V.Kondratenl~,o, CAAhAn_Taze-_ay_ax4
X.Panek, B.Shukla: Secondary Reactions of the Recoil Atoms
80--
Br and -'Br in Methy! Bromides; B.G.Dzantiyev, I.M.Barkalov,
V.V.Khrapov.- Reactions of "Hot" Sulfur- and Nitrogen Atoms With
HydrocaFb_oEs; B.Z.Iofa, L.V.Bobro , A.N.Ratov: The State of
Radioactive Iso~_o-pj_s__!_ri Exxtremsly Dilute Solutions; Mos.
Meruklova, I.V.Melikhov: General Theory of the Copreoipitation
of Radioactive Elements With Non-isomorphous Crystalline
Precipitates; A~V.Lapitskiyq I.A.Savich' Chzhuan Ya-uy:
Coprecipitatior, of Protaotinium With Com lex Comk2unds7of Tiq
Nb,and Ta; V.U.Fedoseyev, V.V.Ivanenkov, V.N.Bochkarev:
Applioation-of Radioactive Paper Chrome, ography'll K.B.
Zaborenko, A.M.Babeshkin, M.S.Aullchenko: Accumulation and
Separation of Recoil Atoms on the Basis of the Example Rs.224
and Ra228; K.B.Zaborenko, A.M.Babeshkin,
Card 2/4 L.L.Melikhov: ApplicatioL of the Emanation Method for the

The First kll-Union Conference of Universities SOV/55-59-3-29/32
and Colleges on Radiochemistrj
V.I.Spitsyn,
Investigation of the Transformation of Solids;
K.B.Zaborenko, A.M~Babeshkin, M.A.Hadicheva: Transformation of
Heteropoly-oompoundal K.B.Zaborenko, A.M.Babashkin, I.V.
Xovalenko: Geochemistry of Radium; K.B.Zaborenko, V.I.
Xorobkov: Microanalytical Determination of Uranium by Means
OfLNuclear Emulsions. Ar-.N.Nesmeyanov, De DY - . Partial
1-4n:
Vapor Pressure of Co in Alloys With Nil Yu.A.Priselkov~ Yu.A.
Sapozhnikov, A.V.Tseplyayeva, V.V.Karelin-. The Behavior of a
Molecular Metal Beam in the High-frequency Field; I.V.GolubtBOV,
A.V.Lapitskiy, V.K.Shiryaye-%,: Vapor Pressure of Niobium
Dioxidefl.V.Golubt'sov, Yu.A.Likhachev, Ye.K.Bakov: Various
Constructions of the Scintillation Attachment to the Apparatus
of the Type B. Kafedra analitioheakoy khimii (Chair of 95x,\
Analytical Chemistry): I.P.Alimarin,_N.2.kQr e - Niobium
a jjkpyjj,
as a Radioactive Tracersi I.F.Alimarinp T.A.Belyavskaya Mu
Bin-venl: Sorption of Zr by Ion Exchangers; A.I.Busev V.M.
Byrlko: The Use of Complex Pyrazolindithiocarbamates in Radio-
metry. Kafedra neorganicheskoy khimii (Chair of Inorganic
Chemistry): Ye.A. Ippolitova, Yu-P.Simanov7 L.W.Kovba, G.P.
Card 3/4 _-Pol"unina, I.A. Berezniko-va: Uranates of Some Bivalent Metals-

The First All-Union Conference of Universities SOV/55-59-3-29/32
and Colleges on Radioohemistry
V.G.Xnyagina, O.G., Nemkova: Uranium CompoundsWith Acids of
Low-valence Pi V.I. Spit e Influence of the Radioactive.
Radiation of Solids on Their.Physico-chemical Properties;
I.Ye-Mikhaylenko V.I.Spitsyn: Isotope Exchange in the System
x5pso 4 -so3at High Temperature. Kafedra khimicheskoy kinetiki
(Chair of Chemical Kinetics): I.V.Berezin, V.L.Antonovski
N.F-Kazanskay : Application of Tritium for the Purpose of
Determining the Velocity Constants of the Separation of Organo-
hydrogen Compounds. An~N.Nesmeyanov delivered a detailed
lecture on the Methodology of Radiochemical Instruction at
the chemical departments of universities.
Card 4/4

.2115) 21 (0)
XUTEORS: Lapitskig, A.V,.,Nesmeyanov, An.N. S/153159/002/06/028/029
B115/BOOO
TITLE: First All-Union Conference of the Institutions of Higher
Learning of the USSR on.RadloohemIsTry
PERIODICAL: lovestiya,vy9shikh uchabnykh za-vedeniy. Xhimiya i khimioheskaya
takhaologiya, 1959, Vol 2, Nr 6, pp 974-977 (USSR)
ABSTRACT: The-first All-Union Conference of the Institutions of Higher
Learning on Radioohemistr rganized on the occasion of the
lectures he the MQU on Lomonosov to celebrate the 50th
anniversary of the book on "Materialism and Empiriocriticiam"
by-Lenin.took plaoe from April 20 to25,1959inliosoow. 63 lectures
were held.by lecturers from 17 institutions of higher lea 'rnipg~.
About 400 persons from 32 institutions of higher learning of
the-USSR took part in the Conference. The inaugural address
was-held.by the chairman of the organizationoommittee AnoN.
Wesmeyanov,, The lectures dealt with methods used to isolate
and oonoentrate r4!jAq4,qtije isotopes.0chemism of radioactive'
elements occurring in nature, ohemical Properties of "hot"
atoms, synthesis of tagged compoundev state of mioro-components
Card 1/4 of'radioactive elements in solid solutionag coprecipitation of
-ranek
Der o Dzantl ye
V,

pirst All-Union Conference of the Institutions Sti53/59/002 ,10610261029
of Higher Learning of the USSR on Radio-,:,hemlatry B115/boob
N.M.Barkalo-rq V.V.Yh-.repovj, M.S.Aull'ethepko, V.J.Spitsyn, I.Ye.
Mikhayienkop Yu~Ya.nr;01.w-r~ Ye.1i.-SAnot-, a, Y.D.T:cenln., A~
Korshunovs, A.P.Batalo-!F, A.A.Orlova, M.Vobetskiyq L.F.Ye-tikheyevp
Yu.N.Loginov, O.K.Ska-rre,, V.F.Greohanovskiy, V.L.Antono*vskiyp
I.V.Berezinv N.F.Xnz&nsk&ya, Y.A.Bayevakip D.L.
Melekhovp M.A.Rodicheva, D.M.Xuxolov, L.A.Saimow, A.T.Shafiyev,
L.V.Bobroy, A.P.Fatov, I.P.Alimarin, T.A.B,~-Iyav-Akaya, Mu-Bin-
Veng, A.S.Xox,~-yoki;xk, B.A.. 33~-:,4~,1,yakova, A.V.Lapitekiy, Ohzhuan-
Ya-U3r., Oh1r,-T.-jzp.-Khou,
M.S.Merku).rj-o,-*,, G.S.Popov. A.'N.Popkov,
D.Yu.S'.-upinp YuuG.V11aa;o-,r, B.G.Lurfp-~, A.N.Dbirin, A.V.Stepanov,
Yu.V.Moraohevskiy, Y.N.Zaitsev,, A.P.Taranov, Ohzhan-Kho, A,I.
Novikovq Kh.vLa,,Kuar4, I.M.Yorpurian, YqL,D.Ze2.c-(--.,nak1,y, V.A.
Shalygin, De Dyk-manv Yu.A,
Priseilko-7, A.7,JoeplyaYevap V.V.Kaxelln,
I."WI.Gol-dbT,any, D.K.Br-lashc.-henko, A.D.Sotskc-v,
Gao-I-Sbang, A.A.ZhXkhovitt3kiy, i3-D.Jtkdorov~ Yu.F~Babikov,
P.L.Gruz-4n, F.I.Zhomo,,r, $.M.Korberginj: G.R.
Pobedim.ekiy~ V,,1o3haTj)aje-'-,t',. A~1,-Buas-i,- V.M.By.'-9ko, V-I-Kcrobkov,
Card 3/4 F.P.Barzenke:va,, Y,2.A~1,,'-kba(1hev, 'ATo.,K'.Bw1co-v,, KA,Fetrzhak, and

First Alle-Union Conference of thp InitlAxitJn--a stI'53/59/OO2j;b6/028/029
of Higher Learning of the U~15SV. ~,~n B115/B000
R.V.Sedletakiy. The laotvxars mentioned were deputies of the
following institutions of higher letrnirig ard J -nqtilutes: LIGU,
WhTl im,, Mendel Gyo va, Ura'19,3kly politi-kimiche.-,kiy inetitut
(Ural Poly'Veehrile. Inst-ituze), WL1, Vorone7hzkiy gosudarstvre-nnyy
univeraitet (Vo:!o-nizh State Unvfors'A'ty), KozsnBkiy aviatsionnyy
inatitut (Razan~ InL-t-itute of Aviat-lon;, Ki7pvskiy meditsinskly
institut ?,Kiye-,r Medical Institu-.O, Kazakhakil gosudax~stvennyy
universitet (Kazakhskly State Uni;pralty), Xiyevskiy politekh-
nieheski~F inatitut (Kiyev Pclytsohri~; In2tatute), Gcrlkov3kiy
gosudaxetvennyy univex-sltet (Gor~kilv Sta'e Universlty)9
Leningradek-1y t9khno1oF,-.'ch&eki, inatxViat "Lening
grad Technologl cal
Institute),, Ta4z*hikak.-1.;- xinjv6r.9.itPt (Ta-!7,h!k9kiy
State University), Tartu5kiy gosadaxet7emyy univPi,,:;it6t (Tartu
State University)q I-lo.-kovrjkiy institut stali (Mosoov/ Institute
of Steel), Moskovskly inzliene-mo-fizicheskiy institut (Moscow
Institute of Te.:;bn.ioal Phyiw,&J, an' Kamnsk-y khim"ko-
tekhnologicheskiy in5titlut (K&2.ai.1 institute of
gineering). The looturas on the GonferancG will be published
Card 4/4 in t.he periodical "Radlokbimiyall and in this periodical. t

0.7 1 ')4
11-14 s/1aq/6o/ooo/oo3,'/0oq/o13/xx
--51 B003/BO67
AUTHORS: Chzuan Ya uy, Savich, L A., Lapitskiy, A V
9'a_m-orukoyA_V_ R., Titov, L. G. V1
-A 0
TITM Inner Complex Compounds] of Titanium, Zirconium, Riobium,
and Tantalum With Certain S~_h_iffBases_?
PERIODICAL: Vestnik.Moskovskogo-universit,-.trl~t Seriya 2, khimiya, 1960,
TEXT: The present paper describes the complex compounds of the elements
TI, Zr, Kb and Ta with Schiff bases, The initial substances were%
titanium tetrachloride, zirconium oxychloride (produced from zirconium
sulfate), the pentachlorides of niobium and of-tantalum (produced from
the pentoxides (Ref. 4)) and the Schiff bades disalicylal dianisidine,
di-(3-methyl-2-hydroxy-benzal)-dianisidine, di(5-bromo-2-hydroxy-benzal)-
dianisidine (these compounds were synthetized by the author for the
first time) (Table 2) and 12 further substances (Table 1). Carbon tetra-
chloride and chloroform (both purified, dehydrated, and distilled above
phosphorous pentoxide were used as solvents). Titanium complexes:
Card 1/3

85754
Inner Complex Compounds of Titanium, S/189/60/000/003/009/013/XX
Ziroonium,-Nioblum, and Tantalum With B003/Bo67
Certain Schiff Bases
Ccl solutions of TiGl and the Schiff basis concerned were mixed at a
.4 4
molar ratio. of 1%2 and 1:1, respectively. The precipitates obtained were
washed with absolute ether for three to four hours in the Soxhlet
apparatus and dried at 9000. The analysis of the compounds obtained was
made bydetermining titanium (as TO 2) , nitrogen (according to Dumas),
chlorine (as AgCl)~ Table 3 shows the results of the analyses and the'
properties of the compound. The following was obtained: Ti-salicylal
metanitroanilinate, Ti-salicylal aminopyridinatey.Ti-salicylal para-
iodoanilinate, Ti.-2-(4-methYl-2-hydroxybenzalamino)-pyridinate, Ti-3;5-
dibromo-2-salioylal aminopyridinate, Ti-5-bromo-2-hydroxybenzal anilinate,
Ti-3v5-dichloro-2-salicylal a'minopyridinate, Ti-5-chloro-2-(5-bromo-2-
hydroxybenzal aminopyridinate, Ti-5-chloro-2-salicylal aminopyridinate)~
Ti-5-bromo-2-hydroxybenzal metanitroanilinate, Ti-disalicylal ethylene-
diiminate., Ti-2,6-disalicylal aminopyridinate,,Ti-disalicylal-o,o-diani-
Zirconium complexesi Well definable compounds could be obtained
only Iunder the action of-solutions of disalicylal dianisidine in dioxane
on a 90% zirconium oxyohloride solution. The analysis was the same as for
Card 2/3

LAPITSKIY, A.V.; STRINKOV, B.V.; VIASOV, L,G.
Some thermodynamic constauts of alkali metal metaniobates and metatan-
talates. Vest. Moak un. Ser. 2:Wm. 15 no.4:25-27 Jl-Ag 6o.
(MIU 13 -.9)
1. Kafedra radickhimii Moskovskogo universiteta.
(Alkali metal niobatee) (Alkali metal tantalates)

CRzHW U-Ur [Chuang YiL-vuij;jAPITSKITp A,V-; SAVICH, LA-
Some properties of solutions of complex compounds formed by titanium
with Schiff bases. Vest. Moak un Ser. 2: Xhim. 15 no.4:43-45 Jl-
Ag 16o. (MIRA 13:9)
1. Kafedra radiol-,himii Moskovskogo universiteta.
(Titanium compounds) (Schiff bases)

23-128
S/189/60/000/005/006/006
B110/B207
AUTHORSt Lapitqk~iA~._V., Chuang Ya-Wui, Savich, I. A.
TITLEt Disalicylal ethylene diiminates of titanium, niobium,
tantalum, and protactinium
PERIODICAL: Vestnik Moskovskogo universiteta. Seriya 2, khimiya, no- 5,
1960t 78-79
TEXT; The disalicylal ethylene diiminates, DSED of titanium, niobium and
tantalum are soluble in organic solvents, the stability of the solutions
decreasing with increasing dielectric constant of the solvent. The
solubility of the NED of Ti, Nb, Ta in CCl 4 was studied (Table 1), partly
with' tracer atoms (Nb95V -Ta 182) which were measured with a front counter.
The solubility of the Ti compound was calorimetrically determined. The
compounds dissolve congruently which is confirmed by the unchanged com-
position of the solid phases (by chemical and X-ray analysis). With a low
dielectric constant of carbon tetrachloride, the compounds are likely to
be molecularly dissolved. The solutions may be regarded as ideal since
Card 1/4

21128
3/189/60/000/005/006/006
Disalicylal ethylene... B110/B207
their solubility is low. Disregarding the change of the heat of dissolu-
tion, it is possible to use the formula for ideal solutionss lg N.V4.575T
+ A, for the calculation of the heat of dissolution where;L= the heat of
dissolution, N = molar ratio of the dissolved substance, A - a constant.
Accordingly, A was calculated to be 8.3 koal/mol2, 5or the niobium compound
and 6.9 kcal/mole for the tantalum compound. Pa was studied by
V. G. Khlopin's method (Ref. 5t Radiokhimiya (sbornik rabot) Izdatellstvo
MGU, 1952, 115. (Radiochemistry (collection of publications) Moscow
University Publishing House)) to investigate the distribution of the micro-
component between the precipitates and the saturated solutions of the DSED
of Nb, Ta and Ti at 20+0.10C. Even after 20 days of continuous stirring,
no constant values were found for D and Ain the system of the Ti - Pa
compounds. Thus, no isomorphic distribution exists between liquid and
solid phase. In the systems Nb - Pa and Ta - Pa, however, there are constant
values for D and A (Table 2) which indicates an isomorphic protactinium
distribution in the crystals of the macrocomponent. The compound PaR2Cl,
thus formed in soluble in CC14 at 20 0C to - 10-7 mole/l, the heat of dis-
solution is approximately 6 kcal/mole E Abstracter's notes This is an
almost complete translation of the original.] There are 2 tablesand 5
Soviet-bloc references.
Card 2/4

23.128
S/ii3g/60/000/005/006/006
Disalicylal ethylene ... B110/B207
:'ASSOCIATIONt Moskovskiy gosudarstvannyy universitet im. 14. V. Lomonotiova
Kafedra radiokhimii (Moscow State University imeni X.. V.
Lomonosov Department of Radiochemistry)
SUBMITTED: April 16, 1960
~Legend to Table 1: 1) Compound; 2) DSED; 3) 9/1; 4) 14/1.
0.
CowHeIlHe
4.0-10-1 1,0-10
AC9!1-Nb '1.2-10~-4 2,6.10-' 3. 0. 10-' 6,500-7 1.1-10-~3 2,4.10-6
10-c'
-7 -4 4.2-10-1 7.600
)jCBA,;-Ta 1.3-10 2.5-10 2.3-10 1,4
Card 3/4

s/189/60/000/006/002/004
B130/B229
AUTHORS: Lapitskiy, A. V., Nishanov, D., Pchelkin, V. A.
TITLE: Structure of niobates and tantalates
PERIODICAL: Vestnik Moakovskogo universiteta. Seriya 2, khimiya, no. 6,
1960, 18-23
TEXT: The possibility of setting up a general structural formula for poly-
aqua compounds of niobium and tantalum is discussed. Water is able to form
hydrogen or hydroxyl bonds in crystals. The thermal dehydration of salts
was stuaied by the authors, and they found that a great part of the water,
(approximately 75%) splits off at 80-1200C. The residual amounts can be
removed only very slowly, and a complete dehydration can only be obtained at
a sufficiently high temperature: 300-4000C for tantalates, 400-5000C for
niobates. The thermograms of all salts show that thermal dehydration is
accompanied by endothermic or exothermic effects. The Debye patterns of the
salU dehydrated to different degrees differ from each other. The Debye
patterns of air-dried salts are characterized by lines of different intensi-
ty; those of partly dehydrated salts show a distinct diffusion picture,
Card 1/3

s/iBg/60/000/006/002/004
Structure of ... B130/B229
whilst completely dehydrated salts show,the simple lines of. meta salts.
-This indicates that inthe course of dehydration, the crystal lattice of
the initial salt is destroyed and a lattice of the dehydrated meta salt is
formed., The data giveA by the authors, and also by Ye. I. Krylov and
Yu. I., Alekseyev in ZhOKh, 24, 1921, 1954; and ZhOKh,.U, 1052, 1955 on the L/
dehydration of different niobittes and tantalates show that by an increase
of the number of central atoms (niobium and tantalum), the bonding strength
ofwater in the anion is increased.' The number of molecules remaining bound
in the salt above IOOoC is constant, and half a molecule of water goes to
one atom of niobium (tantalum) in the anion. According to A. F. Kapustinsldy
and A. A. Shidlovskiy (Izv. Sektora plat. blagor. metallov, No. 30P 44, 1955~
the water also forms an outer layer around the metal atoms. Bridges are
formed between.the O-atOMB of the water and the O-atoms of the metal
(molybdenum) by means of the E-bond. The water bound in the polyaqua
compounds is bound not.only to the cations but also to the anions. The
water molecules surrounding the cations form polyhedra. The amount of water
depends on the ionic radius and the polarizing effect of the cation. The
water which is~split off most easily belongs to the outer sphere of the
salt. The fi:pmly bound water is bound in the anions. The bond between the
Card 2/3

S1189160100010061CO21004
Structure of ... B130/B229
whilst completely dehydrated salts show the simple lines of meta salts.
This indicates that in the course of dehydration, the crystal lattice of
the initial salt is destroyed and a lattice of the dehydrated meta salt is
formed. The data givezi by the authors, and also by Ye. I. Krylov and
Yu. I. Alekseyev in ZhOKhs 24, 1921, 1954; and ZhOKh, 2j, 1052, 1955 on the tl/
dehydration of different niobktes and tantalates show that by an increase
of the number of central atoma (niobium and tantalum), the bonding strength
of water in the anion is increased. The number of molecules remaining bound
in the salt above 1000C is constant, and half a molecule of water goes to
one atom of niobium (tantalum) in the anion. According to A. F. KapustinskV
and A. A. Shidlovskiy (Izv. Sektora plat. blagor. metallov, No. 30, 44, 1955~
the water also forms an outer layer around the metal atoms. Bridges are
formed between the O-atoms of the water and the O-atoms of the metal
(molybdenum) by means of the H-bond. The water bound in the polyaqua
compounds is bound not only to the cations but also to the anions. The
water-molecules surrounding the cations form polyhedra. The amount of water
depends on the ionic radius and the polarizing effect of the cation. The
water which is split off most easily belongs to the outer sphere of the
salt. The firmly bound water is bound in the anions. The bond between the
Card 2/3

Structure of ...
S11691601000100610021004
B130/B22,9
atoms 'of the metals (Nb; Ta) results from R-bonding. The structure of the
analyzed niobates or tantalates can be explained by the behavior of water in
dehydration. The general formula reads: Mex [(H)6019)2 *nH201. MR20, where
Nb, Ta; Me - Li, Ka, K etc; n - 1-5; x. - 14, 161 mH20 is the part of water
which coordinates around the cations. V. I. Spitsyn, M. L. Fridman, S. S.
Babanov, and A. Ye. Von-Arkell are mentioned. There are 5 tables and
26 references: 14 Soviet-bloc and 12 non-Soviet-bloc.
ASSOCIATION: Moskovskiy gosudarstvennyy universitet, Kafedra radiokhimii
(Moscow State University, Department of Radiochemistry)
SU13MITTM: April 29, 1959
Card 3/3

83067
24 1 1 VbO S/153/60/003/004/001/006
51 100 B004/BO58
AUTHORS: Golubtsov, I. V., Lapitskiy, A. V., Shiryayev, V. K.
TITLE: The Problem of the Volatility of Niobium Oxideal-I
PERIODICAL: IzveBtiya vysehikh uohebnykh zavedeniy. Khimiya i
khimicheskaya tekhnologiya, 1960, Vol. 3, No. 4, PP- 571-574
TEXTs This paper was read at the 1st Intercollegiate Conference on
Radiochemistry, Moscow, April 20-25, 1959- It was the aim of the authors
to measure the pressure of saturated vapors of Nb 0 and NbO in the
2 5 2
temperature range of 1489 - 1905 OK by using Nb95. A vacuum furnace of the
type MDTr-3M (MVP-3)9) and a Knudsen effusion chamber (Fig. 1), the
aperture and container of which were interchangeable and could consist of
molybdenum, tungsten or ceramics, served as testing apparatus. The scheme
of the absorption apparatus made of quartz and tungsten is shown in Fig-2.
The temperature of the effusion chamber was measured with an optical
OffHHP-09 (OPIIR-09) pyrometer. In addition to the Knudsen method, the
vapor pressure of N20 5 was also measured by the flow method. The apparatus
Card 1/3

03067
The Problem of the Volatility of Niobium S/15 60/003/004/001/006
~Oxides. BO04YI1058
used consisted of the MVP-3M furnace, the reaction tube, the installation
for air drying, and a gasometer of the Patrikeyev system, type VCTr-1
(UGSP-1). Niobium metal was dissolved, converted into the oxalate complex,
precipitated with tannio acid after the, addition of Nb95, and annealed to
Nb 0 FDO was obtained from Nb + Nb 0 in theTM-1 (TGV-1) furnace at
2 5 2, 2 5
-4
10 torr by heating up to 12.500C. The specific activity of the prepara-
tions.'was determined by means of a gamma tube of a 3-2 (B-2) apparatus.
The data for NbO are listed in Table 1, Fig- 3, those for Nb 0 in
2. 2 5
Table 2, Fig- 3. X-ray examinations showed that NbO 2 was stable under the
experimental conditions, and that the*,container material (molybdenum,
tungsten, ceramics) had no influence on the results. For Nb 0 the X-ray
2 59
picture showed the appearance of NbO above 1150 0C. A thermal dissocia-
2
tion,,therefore, takes place in vacuum at high temperaturest
Nb .2 05xi 2NbO2 _2P 2The authors thank Yu. P. Simanov for his advice, and
L. F. Belykh, V. A. Galushkin, and 7,. G. Pakhomov for assembling the
Card 2/3

TSALETU, R., WITSKIr. A.V.
Presence of transuranium elements 1n nature. Usp. khin. 29 no.12:
1487-1497 D 160. (KIRA 13:12)
1. Khimicheekly fakal'tet, kafedra radiokbindLi Koakovskogo
gosudarstvennogo universiteta imeni N.V. Lomonosova.
(Transuranium elements)

83975
S/080/60/033/009/007/021
.4100 A003/AGOI
ALTITHORSI: Strizhkov, B.V.,, Lapitskly, A.V., Vlasov, L.G.
TITIE: The Physical-Chemioal Study of the Decomposition of the Barium
Titanyl Oxalate Binary Salt
PMIODICAL: Zhurnal prikladnoy khimii, 1960, Vol. 33, No. 9, pp. 2009-2014
TEXT: BaTIO(C204)*4H20 and the products of its thermal decomposition
were investigated. It was subjected to complex thermographic and thermogravita-
tion analysis within the temperature range from 20 to 1,4009C. The investigatio
was'darried out in the Gosudarstvenpyy issledovatel'skiy elektrokeramicheskiy
institut (State Electroceramic Research Institute) on a Voronkov's apparatus
(Ref. 4). The weight of the batch was 0.15 9. The temperature was raised at
-the rate of 8 degrees/min. The first endothermic process was observed at 1750C
and was accompanied by a weight loss of 16.7% corresponding to a loss of 4 mole-
cules,of crystallization water. The second process took place at 3450C. It was.
accompanied by a weight loss of 20% due to the decomposition of the oxalate ion
and lilseration of two molecules of carbon..dioxide. The third effect, at 6700C,
was due to the liberation of another two molecules of carbon dioxide resulting
Card 112

_V1 0 0
AUTHORS:
86378
S/020/60/133/006/029/031.Xx.
- ~ZC 127b Bo16/BO5,4
Strizhkov, B. V., Lapitskiy, A. V., Vlasov, L, G., and
Tsvetkov, A, I.
TITLE: Production of Titanyl Oxalates of Bivalent Metals, and a
Physico-chemical Study of Their Thermal Decomposition
PERIODICAL: Doklady Akademii nauk SSSR, 1960, Vol, 133, No. 6,
pp~ 1347-1349
TEXT: The authors report on the synthesis of the salts of titanyl oxalic
acid H2 (TiO( C204)2) .2H 20 with bivalent cations, and on the physico-
chemical study of the decomposition of these salts on heating. For this
purpose, the authors developed special methods, and produced, with their
aid, barium-, strontium-, lead-, and calcium-titanyl oxalates. For the
first three salts, they used the following procedure: Concentrated
solution of oxalic acid was added, under continuous stirring, to the
aqueous solution of TiCl 4 (conoentration 0.2-0.3 91ml) which had been
prepared by the method described in Ref, 3. Aqueous solutions of barium
Cara 1/3

86376
Production of Titanyl Oxalates of Bivalent 1020
L' 3 _/60/1 3310o610291031YY.
Metals, and a Physico-chemical Study of Their B616/BO54
Thermal Decomposition
chloride, strontium chloride, or lead nitrate were added to the resulting
solution of titanyl oxalate at room temperature. The resulting complex
salts yielded a white precipitate. Calcium-titanyl oxalate could only
be obtained in acetonic solution, An analysis of the compounds produced
showed the following compositions: BaTiO(C 204 )2'4H2 0; SrTiO(C20 4)2.5.5H20;
PbTiO(C 204)3'4H,>O, and CaTiO(C 204)2* 5H2 0, By an X-ray phase analysis and
a crystal-optical investigation, the authors proved that the complex salts
obtained consist of small isotropic crystals. A comprehensive thermo-
graphic and thermogravimetric investigation showed that the thermal
decomposition of the said four titanyl oxalates proceeds by steps~ and is
accompanied by several endo- and exothermic processes (Fig. 1). From the
character of decomposition, the authors conclude that the oxalate groups
are,mainly bound to the titanyl ion; the cation has no noticeable effect
on the strength of this bond. The process of thermal decomposition is
concluded at about 8000C, The end products are meta-titanates of the
corresponding metals. Table I gives the specific gravities of the salts
used and of the products of thermal decomposition. As was expected, the
Card 2/3

86378
Production of Titanyl Oxalates of Bivalent 5/020&/133/006/029/031XX
Metals, and a Physico-chemical Study of Their Bo16/ ~054
Thermal Decomposition
specific gravity increases with rising roasting temperature up to a maximm
which corresponds to the specific gravities of barium-, strontium-,
calciVm-, and lead titanate, respectively, There are 1 figure, 1 table,
and 3 non-Soviet references.,
ASSOCIATION. TYoakovskiy gosudarstvennyy universitet im. M. V. Lomonosova
(Moscow State University imeni M. V. Lomonosov)
PRESENTED:
SUBMITTED:
April 7, 1960, by I. I. Ghernyayev, Academician
April 4~ 196C)
Card 3/3

I
-'LAPITWOKIYO Aev.
k.
Conference on the grouping of elements in Mendeleev's periodic systen.
Izv. AN SSSR. Otd.khim.nauk no.9:1719-1720 S 161. (Ml~ 14:9)
(PeriDdic law--Congresses)
!i

22483
s/186/61/003/003/001/018
E071/E435
dlao
AUTHORSi Lapitakiy, A.V.,.Chuang Ya-Vuy and Savich, I.A.
TITLEs A Study of the Process of Cocrystallization of
Protactinium With Complex Compounds of Titanium,
Niobium and Tantalum
PERIODICAL: Radiokhimiya, 1961, V01,3j No,3, pp.241-245
TEXT; The authors studied coprecipitation of protactinium with
.complex compoundb of titanium, zirconium, niobium and tantalum in
order to determine if there were any chemical analogues-. They were
unsuccessful in synthesizing complex'compounds of zirconium and
titanium with Schiff's bases of the same composition. (The methods
of producing such compounds are the subject of a separate paper.)
Therefore, the study was limited to salicylaletylenediiminates of
niobium, tantalum and titanium which were similar to each other in
respect of their stability and solubility. The method of
synthesis of the above compounds was the same na,described in a.
previous paper (Ref.4i Chuang Ya-Wuy, 1,A*Savich, A.V.Lapitakiy,
V*R.Samorukov, L,Q.Titov, Vestn.MGU, seriya 11, 4, 40 (1960).
The compounds were marked with radioactiV6 niobium -95,
Card 1/4

A Study of the Process of ...
22483
s/i86/6i/oO3/003/Ooi/oi8
E071/E435
tantalum- 182 and'protactinium -233, the'purity of which was
confirmed by the half-life period and-energy of P-radiation. The
solubilities of the above complexes in carbon tetrachloride (which
was used as a solvent in all experiments) were determined at 09
20 and 450C (titanium complex only at 20*C) and are given in the
paper, Assuming that the solutions are ideal, the heats of
solution of niobium and tantalum complexes were calculated as 8.3
and 6.9 k/cal/mole respectively. The distribution of
protactinium between precipitates and saturated solutions of
niabium, tantalum and titanium complexes was studied using the
attainment of the equilibrium "from above". The authors
possessed indicator quantities of protactinium- 233 which
permitted varying the quantities of the microcomponent only by two
orders. Thg total activity of the microcomponent in the solid
]~ha~jse was 10 to 107 impulses/min. Weighed samples of salts
containing protactinium -233 as a microcomponent were placed In
glass ampules to which saturated solutions of the same (but not
radioactive) salts in carbon tetrachloride were added. The
ampules were then sealed and shaken for long periods in a
thermostat. After a given period of recrystallization, the ampules
Card 2/4

S/186/61/003/003/001/018
A Study of the Process of E07-1/E435
were centrifuged at 6000 r.p.m. for I hour, opened and the
radioactivity of samples of the liquid'phase determined
(P radiation). The experimental results are tabulated. It was
found that in the system niobium disalicylalethylenediiminate-
protactinium, the recrystallization takes place slowly and in the
Bye tem tantalum complex -protactinium the equilibrium is
established much faster. It appears from the constancy of the.
Observed values of D~ and X that in the above two systems
an isomorphic coprecipitation takes place, while in the system
titanium complex- protactinium this phenomenon was not observed.
As the tendency of protactinium to the formation of complexes is
similar to that of niobium and tantalum, it is assumed that
protactinium forms with Schiff's bases, intercomplex compounds of
composition PaR2C'3, i.e. similar to niobium and tantalum
disalicylalethylonediiminates. The solubility of this-comp.,oun&
carbon tetrachloride at 200C should be about lo-7 mole/l and the
heat'of solution about 6 kcal/mole. keknowledgments
in
are expri;zaed
to M,S.Merkulova for her advice. There are 5 tables and
3.2 referencess 7 Soviet-bloc and 5 non-Soviet-bloc. The
.3'references to English language publications read as follows:
Card 3/4

22483
A Study of the Process of ... S/186/61/003/003/001/018
E071/E435
M*Bachelet$ J.Chem.Phys., 43, io6 (1946; A.G.Maddock, G.Miles,
J Chem. Soc., 253 (1949)i G.Boissieres, M.Haissinsky, J.Chem. Soc.,
256 (1949).
SUBMITTEDt 26, 196o
10.
Card 4/4

I STRIMIKOV, B.V, - LAFITSICIYP A V.; MISOV, L.G.
Preparation of calcium titanyl oxalate. Zhur. noor:,r. '-:h:L-. 6 no.!;
238-239 '61, (I-M-A 14;2)
(Calci-am titanyl =late)

899012
S/078/61/006/'003/015/022
B121/B208
AUTHORS: La itskiy, A. V., Chu Ang Ya-ui, Savich, I. A.
.p
TITLE: Studies of some physico-chemical properties of disalicylal-
ethylene diiminates of titanium, niobium, and tantalum
PERIODICAL: Zhurnal neorganicheskoy khimii, v. 6, no. 3, 1961, 653-658
TEXT: Apparent molecular weight, electrical conductivity, absorption
spectra, refractive indices and other porperties of the disalicylal-
ethylene diiminates of titanium, niobium, and tantalum both in solid state
and in solutions were studied by several physico-chemical methoas. These
compounds are sparingly soluble, fine-crystalline complexes. The apparent
molecular weights were determined by dissolving them in acetanilide, and
the following values were found: N - 1.726 - 0.002, for the titanium
p +
compound, Np = 1.762 f 0.002 for the niobium, compound, and.Np - 1.746-0 .002
for the tantalum compound. The refractive indices were: 125 for the
titanium compound; 90 for the niobium compound; and 106 for the tantalum
Card 1/4

8990
Studies of some physico-chemical...
s/c78/61/006/003/015/022
B121/B208
compound. Determination of molecular electrical conductivities disclosed
that these complexes dissociate into three ions when dissolved in methyl
alcohol. The following structural formulas were obtained on the basis of
molecular weights and electrical conductivities:
CH2 CH2
1 1
C11 - X N ~CH
0 Ti
Cl2
Card 2/4

89903
S/07 611006100310151022
Studies of some physico-cbemical... B121%208*
CH2 CH2
I I
CH~ N N -CH Cl2
0
Ol
M = Nb, Ta
Spectrophotometric determinations in a wavelength range of 250-600 m~L
indicated that the resultant chelates are of low stability. There is no
dependence of the absorption spectra on the radius of the central ion. The
titanium.chelate is more stable than the corresponding niobium and tantalum
compo'unds. There are 2-figures, 4 tables and 10 references: 4 Soviet-bloc
and 6 non-Soviet-bloc.
Card 3/4

89903
S/078/61/006/003/015/022
Studies of some physico-chemical ... B121/B208
ASSOCIATION: Moskovskiy gosudarstvennyy universitet im. M. V. Lomonosova
Laboratoriya radiokhimii (Moscow State University imeni
M. V. Lomonosov, Radiochemical Laboratory)
SUBMITTED: December 14, 1~59
Card 4/4

LAPITSKIYP A.V. prof.
Unference on the stracture of D.I.Mandeleev's periodic system.
Z&W-.VKHO 6 m.4:464-465 161. (NnA 14:7)
(Feriodic law-Congrasses)

21338
2.2,10 4016i 1215, 1145" S/078 61/006/004/010/018
13107YB21 8
AUTHORS% Lapitskiy, Artamonove., Ye. P.
TITLE: Products of the reduction of metaniobates of bivalent
metals by hydrogen
PERIODICAL: Zhurnal neorganicheskoy khimii, v. 6, no. 4, 1961, 904-908
TEXT: The reduction of the following metaniobates by hydrogen between 400
and 12000C was studied: Be(NbO 3)21 Mg(NbO 3),, Ca(NbO 3)2, Sr(NbO 3)21
Ba(NbO 3)2, Fe(NbO 3)2, and Pb(NbO 3)2' All compounds had been prepared and
analyzed in the authors' laboratory. The experimental technique is
described in an earlier paper (Ref. 1s A. V. Lapitskiy, Ye. P. Artamonova.
Zh. neorgan. khimii, 2, 820 (1957)). The samples were first annealed at
12000C in the open air. X-ray pictures show that this did not lead to any
change in the crystal structure. Reduction in a hydrogen atmosphere was
carried out for 5 to 20 hr until a constant weight was attained. The
strongest change in weight was exhibited by niobates of beryllium (Fig. 1),
iron (Fig. 1), and lead (Fig. 3). The reduction product of beryllium
Card 1/5

21338
5/07 61/006/004/010/018
Products of the reduction of... B107YB218
metaniobate is a pure niobium oxide. X-ray analysis yielded Vb02 with
a= 4-84 A and c .2.99 A. Under these conditions, BeO is volatile because
of the formation of an aerosol of beryllium hydroxide, as was proved by a
special test series. A second experiment (30 hr at 120000) yielded NbO
and Nb02 in a ratio of 411. The following reactions are most likely to
occur in the reduction of lead metaniobate: Pb(NbO 3)2 - PbO + Nb205;
Vb205 + H2 - 2NbO 2 + H20; PbO + H2 ' Pb + E20. Lead evaporates, and Nbo 2
is left behind. The volatility of elementary lead was studied separately
(Fig- 3, curve 2). Ferroniobate decomposes at 6000C, and Nb 205 (high-
temperature form) is formed. At 1200OC9 metallic iron, NbO, and Nb02 are
found in the powder pattern. Under the above conditions, the reduction of
elk aline-earth metaniobates proceeds less readily (Fig. 2). The reduction
products were treated with dilute HC1, after which Mg, Ca, Sri and Ba were
miorochemically determined in the solution. This is, however, impossible
when metaniobates are treated with HC1. Weak lines in the powder patterns
indicate the formation of Nb02 and alkaline-earth oxides. The authors
thank A. P. Golovina, P. K. Agasyan, and L. P. Reshetnikova who assisted
Card 2/5

21-338-
S/078/61/006/004/010/018
Products of the reduction of...- B107/B218
in-the experiments, and Vikt I. Spitsyn and Yu. P. Simanov for discussions.
13 r;ferences: 9 Soviet-bloc. The three
There.are 4 figures and
.references to English-language publications read as follows: J. Elston,
..Proc.-2 United Nations Intern. Confer. of Peaceful uses of Atom. Energ.
'334-0958); N. D. Ervey, R. L. Seifert. J. Electrochem. Soo., 28, 83 -
(1951); L. I. Grossweiner, R. L. Seifert, J. Amer. Chem. Soo., 74, 2701
(1952).
ASSOCIATIONs Moskovskiy gosudarstvennyy universitet im. M. V. Lomonosova:
Laboratoriya radiokhimii (Moscow State University imeni
M. V. Lomonosov, Laboratory for Radiochemistry)
Y" Card 3/5

4338
S/078J61/006/004/010/018
~Products -of the reduction of... B1071B218
Fig. Is Reduction by hydrogen. Fig. 2s Reduction by hydrogen.
Legends 1) Be(Rb03)2; 2) Fle(NbO~2;
Legend t I ) Mg(Nb03)2; 2) Ca(NW3)2;
Y) loss in weight, 3) Sr(NbO ) 4) Ba(IqbO
in weight 3 3)2; Y) loss

I.Z

40# 6W m Am IM 4 It

Card., 4/5

lilt

5/078/61/006/004/010/018
Producta*,of the reduction of... MOM
-,.:Legend to Fig- 3t 1) Reduction of
-'Pb(NbO ) -by. hydrogen; 2) evaporation
32
WO
-Of lead in 6 hydrogen atmospher
,y)~ioss in weight,

VLASOV, L.G.; LAPI.TSIUYj A&VO
Physicochemical study of the system aqueous potassium netaniobate -
okalic acid. Zhur.neorg.kbim. 6 no.6:1418-1423 Je '61.
(MIRA 14.11)
1. Mosko'vskiy gosudarstvennyy vid"rsitet im. M.V.Lomonosova,
Kafedra radiokbimii.
(Potassium niobate) (Oxalic acid)

VIASOV, LOG.,;~_4PITSKIY, 4S.; STRIZIIKOV, B.V.
Thermo
graphic and thermogravimetric study.of oxalatoniobates.
Vest. Mosk. un, Ser. 2s Xhim. 16 no,1:57-58 Ja-F 161.
(14M 11, '
1. Kafedra radiokhimii Moskovskogo universiteta.
(MaUtoniobates)

IAPITSKIY, A.V.; OMYLITSYN, B.D.
G4wes of geochemical pemdiarities of niobium and.tantalum. Vest.
Hook. un, Ser. 4s Giol.'16'no.2t7044 Mr4p 161. (HIPA 14:4)
1. Kafedra radiokhimii Moskovskogo imiversiteta.
(Columbium) (Tantalum)'

VIASOVI L.G. j,,4PITSKIY
Pomplex compounds of niobium. with axalic acid. V.est.Mosk.Un.Ser.2:
khim. 16 no.6;38--~40 11--D 161. (MIRA 1411J)
1. Moskovskly gosudarstver universitet, Wedra mdiokhimii.
Mobium CMDoundTs (Oxalic' acid);

TI~UPITSKIYp A.V.
A4, Conference on the arrangement of the D-I.*,Mendel"'v periodic system.
Veit.Mosk.Un.Ser.2.- khlku 16'no..6-.77 N-D '61. (MML 14:.U)
3,.,. Kaf-Irdra radiokhimii Moskovskogo gosudarsVennogo universiteta,
'(Pekodic jAw-4ongresses).

STRIZHKOV, B.Ve; I4P
lTqKIX,-Aj.; VLASOV, L.,G.
Preparation and thermographic study of barium,, lead and strontium
titanyl oxalates. Zhur.prikl.khimo 34, no*3.-673-67.4 Mr. 161.-
(MM 14:5)
(Barium titanyl oxalate) (Ix~ad titanyl czalate)
(Strontium titanyl 6maate)

S1020 61/141/001/'012/02-1
/0
B103/B147
V., Vlasov. L. G., Artamonova, Ye. P., and
AUTHORS: A.~
Zyulkovskiy, Yu.
TITLE: Study of interaction of aqueous potassium metaniobate ~.ith
oxalic acid
PERIODICAL: Akademiya nauk SSSR. Doklady, v. 141, no.. 1.. 19061, 101 - 103
TEXT: The authors studied, by means of physicochemical analysis, the
system KNbO 3 - H 2C2 04 - H20 both in isomolar series and in series wi.th
constant KNbO 3 concentration. They measured: electrical conductivity,
optical density, transparency, lowering of the freezing point, --riscosity,
pH, and diffusion coefficient. '.7hen measuring the latter, they used
Nb95 as a label. The composition - property curves usually show two
extrema: (a) at a molar ratio KNbO., : H 2 C204 0.5, and (b) at a ratJo
of 1:1. At the ratio of 1:1, the Interaction may take place;
KNbO3 + H 2C2 04= KHC 204 + H11b03 (1); KNbO 3 + H2 C20 4 =K [Nb 02C2041 + H20 .r,
Card 1/ 3

S/020/61/141/001/012/021
Study of interaction of aqueous- B103/BI47
2KNbO 3 + 2H2C204 = (NbO 2)2C204 + K2C204 4 2H 20 (3). On t~lp basis of
experimental data, only (2) is applicable to the intexaction of the two
components. The first stage of interaction proceeds as follows:
2KNbO 3 + H 20204= K2C2 04 + 2HNbO 3' The largest precipitate is formed at
a ratio of 1 : 0.5, which is confirmed by data of PH measurements- At
1:1, the solution remained as clear as water. Reaction according to ECI,.(3)
could not be verified experimentally (PH measurements). By means of
electrophoresis it was found that the entire Nb passed to the anode
according to Eq. (1). Thus, Nb is in the negatively charged particles
whereas, according to Eq,. (3), it constitutes a component of the positively
charged particles. Since no interaction was found at 1:1, but only a,,
about 1:2, results were checked by computation,. The coefficient of sel.f-
0 10-_-~c 2r
diffusion of KNbO 3 was additionally measured at 25 C; it was 11,478- M'isec
(concentration about 0.03 moles/liter). The molecular weieht approximately
calculated for the resulting domplex ion was 199,7 which is close to 217,
(the value theoretically calculated for the L NbO2C2041 ion) Thus, the
composition of the resulting compound was confirmed by the coefflic-,ent of
self-diffusion. its composition remains unchanged up to the r--t--;o of
Card 2/ 3

S102 611141/001101211021
Study of interaction of aqueous... B103Y3147
1:10~ At a pH< 2, the complex is in solution in a strongly hydrolyzed
state since the coefficient of self-diffusion is strongly reduced, At a
pH of 1.8, it remained constant for various ratios between 1:1 and 1:10~
Thus, only one compound, K 1Nb02C2041' is formed. The instability constant
of the complex ion was found to be 8.10-4. A compound with a ratio
Nb : H 2C204 ~ 1:3 could not be found by the authors (contrary to F. Russ,
Zs. anorg. Chem., ~_1, 42 (1902)), There are 3 figures and 4 references:
1 Soviet and 3 non-Soviet, The reference to the English-language
publication reads as follows: C. G. Fink, L. G. Jenness, Am. Inst. of
Min. and Ilet. Eng., Technical Publ., 1931, P, 147.
ASSOCIATION; I.Ioskovskiy gosudarstvennyy universitet im, Y, V. Lornonosova
Ly
(Moscow State University imeni I'L V. Lomonosov)
PRESENTED: April 22, 1961,by 1. 1, Chernyayev, Academician
SUBMITTED: April 14, 1961
Card 3/3

GEIEMFAM, I.; LAPITSKIT A,V*
Complex formation of protactinium, vith mono-, di-, and
polycarboxylic acids. Part 1: Complex formation of
protactinium with lactic acid. Radlokhimia 4 no.4:421-1+26
162,, (MIRA 15:11)
(Protactinium Compounds)
(Lactic acid)

S/189/62/000/006/003/006
D214/D307
AUTHORS: Vlasov, L.G., Sychev, Yu.N. and,.Lapitskiy, A.V.
TITLE: Preparative separation of titanium and iron chlor-
ides by vapor phase chromatography
PERIODICX,: Moscow. Universitet. Vestnik. Seriya II. Khimiya,
no. 6,1962, 55-57
TEXT: Separation of the chlorides (95~0,,TiC14; 5'16 FeCl3)
was conducted on a silica gel colutnn at 380 � 100 using C12 as the
carrier ps. The Fe content of the emerging TiCl found radionet-
45.
rica 59r-e), was < 5.10-8'1'0 (liTnit of detection After.4-5 hra,
10-15 g of Fe-free TiC14 were obtained.. The adsorption of FeC13 on
silica gel follows the Langmuir equation. The tauthors point oUt
the value of gas chromatography both in analytical and in prepara-
tive inorganic chemistry. There is 1 figure.
ASSOCLITION: Kafedra radiokhimi* (Department of R
adiochemistry)
SUBMITTED: March 30, 1961
Card 1/1

L&FITSKIY.1, A.V.; GELETSEANUs I.; BERANp M.
Couplex formAtion of thorium with some bydr#wcarboxylic
acids, Radiokhiniia 4 no.6:672-677 162. (KERA 16t1)
(Thorium compounds) (Acida,jQrganic) (Ion mcchange)

I ~. . -- __- i
BERDONOSOVp B.S.; LAPITMIY,, A.V.; VLASOV, L.G.; BERDONOSOVA D.G.
X-ray study of zirconium tetrabromide. Zhur.neorg.khim. 7
no.6:1465-1460' Je 162. (MM 15:6)
(Zirconium bromides) (X rays-Crystallography)

S/076/62/007/006/003/008-
B101/B1.38
AUTHORS: Lapitskiy, A. V., Artamonova, Ye. P.
TITLE: F,~drogen reduction of metatantalates of various m4tals
PERIODICAL:' Zhurnalneorgunichetikoy khimii, V--7, no.'6, 1962, 1908-19121
TEXT:' The metatantalates LiTaO 31 NaTaO 39 KTaO 3f RbTaO 31 CBTaOj Be(Ta 03)2't
-g(TaO )', Ca(TaO Sr(TaO Ba(TaO Fe(TaO and Pb(Ta'O,.) were
.3 2 3)2' 3)2 3)21 3)2P 2
0
heated in a 'hydrogenzfAmosphere at 400 - 1200 C and the cohatant weight
reached was determined. For apparatus and methods see Zhh neorgan.
khi;.lii,-2,1 820 (1957)";: Weight became constant after 80 bra, depending
On the metatantalate. Results: (1) Alkali metatintalateB showed maximum
0
loss in we3ight above 6bo - 700 C. Chemical analysia showed that the
reaction 2MeTaO t,= Me 0 + -Ta 0 ; Ta 2Ta have
3 2 2 5 205 + H2 02 + H20 must
pccurred. The metal oxide is vo
9/atilized. Na and K compounds were more
stable than Li, Rb, and Ga. (2) Fxcept : Ifor Be(TaO 3)2' the metatantalates
of the alkaline earth metals showed high thermal stability. The Be
Card 1/2

5/078/62/007/OOB/003/008
1~ydrogen reduction of metatantalates ... B100138
compound was reduced the most intensively and BeO was vol&tiUzed.,~ The
reduction product had the ratio BeO : Ta 205 -, o.6. (3) Powder patterns of
heated Fe(Ta.0 3)2showed the.(011), (002), (112)0 and (022) lines.of a-Fe,
and, very faintly, those of FeO. The process follows the reaction:
PG(TaO 3)2 - PeO + Ta 205; Peo +.H2 - Fe + H20 - As the loss in weight is~'
only 4.281;,'~', the reaction is not completed. (4) In Pb(TaO 3)2 most of the
reduced lead volatilizes (loss in weight: 31.02~). Conclusions: At high
temperatures-:hydrogen reduction of metatantalates can only occur if
cations with'marked polarizing effect are presents-, There are 4 figures
and 2 tables-*
ASSOCIATION; Moskovskiy gosudarstvennyy universitet im. 14. V. Lomonosovat.
Kafedra radiokhimii (Monoow State University imeni M#.V*
Lomonosov, Department of Radiochemistry)
SUBIMTED: September 13, 1961
Card 2/2

BERDOEOSOV"
I S-S; IAPITSKIY A.v VIASOVI L,,G.
Mlechardism and'producto of red-action of tantaliim and niobium
Pentabromides. Zhur.neorg.khim. 7 no.9:2.173-23.80 S 162.
OMU 3.5-9)
. -tot.
1. Moskovskiy gosudarstvennyy univergi
(Tantalum bromide) (Iliobium br- de)
(Reductionp Chemical) -

STRIZHKOV, B.V.; LAYITSKIY, A.V.jl, SMNOV, Yu.P.; VIASOV, L.G.
Complex titanium oxalates. 7-hur.neorg.khim. 7 m.9:2181-2184
s 162. (MIRA 15:9)
(Titanium oxalate)

STRIZHKOV B.V.; I VIASOV, L.G.
Thermal decomposition of oxalic acid and bivalent metal
oxalates. Zhur.iaeorgakhim. 7 no..10:2352-w2356 6 162. _(MIRA .15:10)
1, Moskovskiy gosudarevennyy univereitet imeni Lomoneova i
Akusticheskiy institut AN SSSR.
(Oxalic acid) (Oxalates) (7hemochemistry)

VIABOV., L.G.; LAPITSKIY A V SALIMOV, M.A.; STRIZHKOV, B.V.
Structure of complex niobium oxalates. Zhzw.nq4j.w2iM.
7 no.11:2534-2536 N 162, (MM 15:12)
(Niobium compoundo) (Niobiua oxalate)

VLASOV, L. G.; SYCHEV., Yu. N.; LAPITSM, A. T.
Preparative partition of titanium and iron chlorides by, gas
adsorption chromatograpby. Vest. Mosk. un. Ser. 2: Nhin. 16
[i.e.271, no.6:55-57 N-D 262. (MM 16:1)
1. Kafedra radiokhimii Moskovskogo universiteta.
(Titanium chloride) (Iron chloride)
(Gas chromatography)

LAPITSKIY, A..V.
New scale of atomic mass (atomic weights)'- Ves~..Mosk. un. Ser.2:
kfi*.-11 no'.liI8-79.Ja-F 162. (MIRA 15:1)
1. Mookv~!~kiy.dosudarstvennyy universitet kafedra radiokhimil.
(Atomic mass)

~ON-l
ZYULKOVSKIY, Yu.; VIASOV.. L.G,; IAPITSKIY, A.Vo
Self-diffuoion coefficients of aqueous potassium metaniobate and
products of its interaction with oxalie acid. VestJbak.un.Ser.2:
Ehim. 17 no.2:42-46 Mr-Ap 162. (MIRA 15:4)
lo Kafbdra radiokhimii lbakovskogo universiteta.
(Potassium niobate) (Oxalic acid) (Diffusion)

Vik-tor Ivanoylob'SO.Uyn; on the 60th amiveroary of hU 4irthday-
TestsMwkuxtJ4w&2,s. W14 17 no*2878-aW - W-Ap 162. (MMA 154)
(SpitaA,, V#ta~ Ivanovich, 1902,-)

IAPITSKIY,, A.V., doktor kbimicheakikb nauk, prof.
Unified scale of atomic weights. Khim. v shkole 17 no-3-.89-90
MY-Je 162, (KM 15:6)
(Atamic weights)

S/020/62/144/003/021/030
B119/B101
Ai~1--.ORS G~lii$ean~i, I. and ~,s
TITLE; Study.of the complex formation of thorium using ion
exchange, infrared spectroscopyp and nuclear magnetic
resonance
PERIODICAL: .11kademiya nauk SSSR. Doklady, v. 144, no. 3, 19062,
573-575
TEXT: The complex formation of Th with organic acids was studied. The
compounds forwed 17ith trioxyglutaric acid (2), tartaric acid, a-hydroxy
isobutyric acid (3), malic acid (1)$ and mandelic acid (4) were investizated
by ion exchange, those with 1, 2, 3, 4, acetic acid (5)t thiosalicylic
0 U
acid ('), and p-aminosalicylic acid (7) by infrared spectroscopy. The
sDectrum of nuclear magnetic resonance (proton resonance) of thorium
acetate was taken and comDared with that of magnesium acetate (at the
instuitutle of Atomic Physics, Bucharest). The constants of instability
(-Detween -9 -3) and the mean effective charge
8.34-10 and 1.14*10
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Study. of the...
3/020/62/144/003/021/036
B119/3101
(z ='+0.4 to +10-8) of complex ions were determined from the ion-exchange
exDeriment. In malic acid solution, polymeric association occurs in the
p.resence of Th (R-bridges). On the basis of infrared spectroscopy,.
thori= forms the following complexes with acids 1-7: ThA 2* 1-2H 20,
ThA2 -H20, ThA 4 *x F120, ThA 4. x HTY 20, Th(OH)2A2 _H20 , Th2(OH)2A3 *H 20,
Th(OH).3A - (where A = acid). The investigation of proton resonance
-) '20
showed that the mean width 6H was 0.7485 gauss with thorium acetate
.2
(&H = 5.250 gauss with magnesium acetate). The secondary moment LH
2 2
calculated from experimental data was 0.14 gauss for thorium acetate and
6.89 gauSS2 for magnesium acetate. This proves the ocourrence*of
polymeric association in the case of thorium acetate. There are 3 tables.
-vennyy universitet im. '11. V. Lomonosova
ASSOCIATION: K.oskovskiy gosudars440
(Moscow State University imeni M. V. Lomonosov)'
PRES-7NTED: January 17, 19629 by S. I. Vollfk6vich, Academician
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av I U1
S/020/62/145/005/Oil/020
B106/B144:
AUTHOR.St Vlasovo L, Gj Strizhkovi B. V.# Lapitakiy) A. V.t and
Salimovt M. A. ...... ................
TITLE: Infrared absorption spectra of.titanium. and niobium oxalated
Dokladyt v. 145, no- 5t 1962, 10
-PERIODIOALs. Akademiya nauk MR. 55-195~
TEM . The complex nature of titanium and niobium oxalateB has not hitherto
been clearly explained. Therefore, the authors studied the infrared
spectra of the following oxalates previously synthesizedL
Na [NbO(c b 211 Ot V, LNbO(C 0 2H 01 (NH ) LNbO(C 0 ) J-2H
0"
~ 3 . 12 4 3 2 t . 2 4 31 2 4 3 2 4 3 2
?TiO('C 0 Ba The
Ca TiO(C 0 H 0, Sr )J-4H
2 4)21. 4 )2j -5.5H io(C 0
2 2 4 20 IT 2 4 20
spec,tra of oxalates cobtainihg Na, Kt NH Ca, Sr, or Ba were taken for
41
comparison. Titanyl and alkaline-earth metal oxalates were investigated
bythe povider method, the othor oxalates in the form of pastes., The SP70*
of t1ra &Aqboxalates showed one sharp absorption maximum 6f 900 750 cm-
ranges and tvio such maxima in the 1600 1100 om-1 range. The spectra of
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