SCIENTIFIC ABSTRACT NIKOLAYEV, N.S. - NIKOLAYEV, N.I.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001137110016-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 23, 2000
• Sequence Number: 16
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

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*Analysis of Organic Fluoro--ComV_~unds." Rull. Acad. Z. . cl. Shl_-~
309-313. 1943.
C, %~. and FIn an Org. CompouOd (rot conttinirg "., il or othur halc~en) :-~v be
determin,A simultaneously as CO,. water, and -'IF, i*, -aking use of the reaction
SIO, + 147 - SiFj + 2H-O. the H being derived from the org. co.:~_und.
It is essential to prevent condensation Of water before It 13 absorho-d. t_-_c-luse
liquid water (but not vapour) c-nverts SIF into H SIF, (cf. Jacobson. A. 1925.11,
105). Coribustibb-is *ffected In a quartz ubs, 00C-65 ra. 1(ng aml 17-18
"MM, dianeter. The entering OL traverses (a) oxidized Cu foil, (b) Ve combustion
boat (placed one third of he way along the tube containi. g the org. comp,)und,
mixed with 10-15 times its wt. of finely W4dered quartz and covered by a layer
of quartz. (a) a cylinder of oxidIzea Cu foil (5-6 am. long) *nclosing quartz
granules (0.5 - 2 io. size) at 12-15 am. fron the exit end of the tube,
(d) a I't spiral. 'rho tube projecting from the furnace Is heated with a flame to
pavevent condensation of water. no latter 13 ab3orbed first, in 4 wi*", 11'sc I
(SIF.0 is Insol. In-) 90% HMt ). SIFy In then absorbed by an);yd. granular
YY and CO,.Is finally absorbed by the usual rva(pents. Combution Is started by
heating the exit and of tho tube to S50-9000 &;jd ther. extending the hratir,6 to
the region of the boat. which should reach 450-50000 after I hr. and nhould cezain
at 500-5500 for a forther 0.5 hr. In all, 10.1 of 0 *irt'passed thrrugh in
2-2.5 hr., followed by 10.1 of air In 40 min.

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RANAWAO O.M.. rodaktor; ATTOMICS, Moles tok2alebeektr YeAektor
Cftt&Uwa of rare notals) fts&12wgfta reMkh mWlovo lloakwa.
fose ~Ikao-lskhm. lid-ve lit-ry pe chers4i I torets" matallwol,
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dektor kkimichaskift sank, asucho" rodektarg GOUTBWWA, Y.A.~ ._ 0
rodaktor; TOW11M. N.L.. tokhmicheekty r*4&ktor
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legautle khimiis t oboe eaf senime"140 mookwe, Geelml4pro-
fratildele 19564 14 pe mad 5 1. (aft 10: 2)
(Chemistry-Ri story)

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7o- 5-4-2 5/5o
ATTMORSt Alenchikova, I. F, Zayteevat L* Leo Lipin, L. V.,
'Bikolays!4-1,_~W70 Vomin, V. V., Ch*botarev, N. -6 .
TITLN# Investigation of the Physico-Ch*mIcal Properties of Pluton7l
Moride (Izuehenlyo flxiko-khiaich*sklkh evoyetv ftoristogo
plutonila)
PERIODICALs Zhurnal Peorganicheakoy KhImiI,1958,VOl-3,Nr 4,py.951-955(USSR)
ABSTRACTo The synthesis of plutonyl fluoride from hydrochloric acid
solutions of plutonium-TI with liquid hydrofluorio acid
was olaborat*d.
The plutoryl fluorid* produced by Ibis synthesis was ana-
lyzed as follows#
&j by chemical analysis
b by determination of the state of valence of plutontua
by means of the electron absorption spectrum
0) by the determination of the composition based on the
U. R. -absorption spectrum
d) by X-ray structural analysis.
The chemical analysis showed that plutonyl fluoride has the
Card 1/2 following formulas PuO 2F20

AUTHOR'3t JUA214 ev, 1. dualflyev, Yu. ~'~V/78-3-6_3/48
0p$) I
TITLEi jynthesis of t;igher Fluoriies of Niobium, Tantalum ani
Aolybienux by Joan* of Trifluorochloride (Sintez vyeahikh
ftoriloy n1obiyo, tantals i molibdena pri pomoshchi
trekhftoristogo khloru)
PE,iIODICAW Zhurnal neorganich*3koy khimit, 1959, 701. 3, Nr 5,
pp. 1731-17"03# (USSR)
AB~AAM The present paper gives an account of the production of
pentafluort..'es of nioblum, tantalua as wall an of the hexq-
fluoride of -nolybdenum by fluorination of the metnlllc ro4Jor
of the above montioned metals with vaporous trifluorochlorlie,
The trifluorochloride in the fluorination reagrnrt nith th-~
best capability of riaction. "he equipment for th- fluori-
nation consists of quartz raa,~tor ani conlons.-r. "he rc-lult-
ine niobium- and tantalum fluoriies are refinc4 )f -IF,
melting. 7he preparations contain about C,7) -i
fication of hexafluoronclybienu-i Is accomplIali." in
Cnri 1/_~ additional flu,)rination uning nnother pnrtion of o';,AA-n1;,_

of Higher Fluoriles of ;iiobium,
Tantalum and 2olybienum by Aeans of Trifl',iorochloritic
and subs::qw--nt Irrigation of thp apparntus oitn I.-, -ii! HF.
Aftpr twj puril" icat ions by '.iqui-,i HFF the pr,~pv.-irnti~'in 4nun
not contnin CIF, any more.
7here ar( I figurn and 11 ref,~rcnccs, 0 of which i~,, :oviot
YJ B AT T;I' D #une 10, 1'1-57
Cnri 21,

AVIONSt X0026"T, N.S., Alenchikovs, I.F. 312-21-4-11t47
Trus The Detoij~Laacu~ of Water in Liquid KVrogsn F1';Ot1-dO
(OpMeloniye v%dy v shidkm ftoriston vvJorode)
PORMICAU Zavodoksya Laboratoriya, 1958, Vol. 24# Nr 4, pp. 416-419 (US=)
ABSTRACTS Thin metbod is tased upon the already descr"Ibea determination of
water In kWdrogon fluoride by means of Fischer's reagent in
pyrUbm, but in the present case, in oontradiction to Cook and
Findlater (Rot 3) as well as to Mitchal and Suit (Ref 2) this is
asiTiod out by my of pot"sims fluoride and not Immiediately
traw "rogen fluoride. Also M.P. Otntyakove. took part In these
emperiments. The ratio between potassium binuoride and the
h0roson fluoride to be investigated ma fixed at 8 : 1. The mix-
tan or hydrogen, fluoride acd potassium bifluorlde is mixed In
Vare methanol in Fisob*r' ~ reagent and is re-titvatead with a
methanol with it certain quantity of water. T1w wO of titration
Is electrametrically detennined. Thum, three doterainations
Card 1/2 carried out with one wW the swam 9*Aplo investigated nsulted

The mrTte-ra XF-mst"t-ITIO. The 23'
3"-
1-7 0
XF, C~~=p,-J'A
Is f,.-r-rrot-J. At i~ivte cf-ni:n4. nt XF Ct vl' '-I
phav. 5vi r,-,) t~ of a
solid io,!n, ofY? In MTC4)2.

OV, (ArtgorLy Valentinovich; XONSTAXTINOT. VladInIr IvemovIch.
ftinl;;Ii
uchastlye: UT. To.F.; KOSOLAPOVA. T.Ya. NIZMAM-
daktor khln.aauk, setsonsent; TAYSEKIM.
*ko. retsensent, rvd.; KO&CHIN. O.F., kand.t4khn.asuk, ret"nsont,
red.1 ANKUN&OKAYA. N.S.. red.lad-ve; TATIMSTV. U.S.. tokhn.
red,
[Tantalus and n1obium) Tantal I ntobli. Nos"s, %s.nauchno-tokhn.
Isd-ve lit-ry po chernot I tovetnot motellurgil, 1959. 2614 p.
(NIRA 12:11)
(Tant9lilm) (Ilobiun)

RIKOZATrw*, U.S.; OFAMTS-KIT. A.A.
StuWag solutlom of go (TI) In hydraflueric scil. lsv,SIb.
otd.AN 3531t no.12:49-58 139. (KIRA 13-5)
1. lustitut obehch*y I soopulebeekey Well 1U.N.S.
AN SSSR t Institut moorganich"koy khtull Sibirskago otUlentys
AN 33a.
(Nalybdenum) Ordrofluerta &aid)

5(2)
AUTHORSt Nikolayev, 1;. S., Opalcivakiy, A. .4. 507/211-124-4-28/1,57
TITLEs Difluoroxy Molybdio AC.14 (Diftoriks!=olibd9nova,7& kislota).
(Synthesis and Propertiesi (sintez i svcygtvG'
PERIODICLL# Doklady Akademii nauk SSSR, 1959, 1101 124, 'or 4, PP 8,250-833
(USSR)
AB3TRACTs For molybdenum (VI) tre h3xal"L,,oride KoF 11: &,-,1 the
oxyfluorides MoOF 4 and MoO2F 2 are known. The latter are
produced by the action of anhydrous hydrogen fluoride in
corresponding ozychlorides Ref 1). In inv9stigating the
system HF - NOT 6 - H20 by t~,o =9thc,1 cf iaother=al solubility
(Ref 3) the authors provel ttat -~r. the Interaction of molyblvn-,iz
trioxide with *drofluoria acil an azidocomplex compound I's
formeds difluoroxy molybdic a::id H 2moo 3 F2'H2C. It ap,ears In
the system both as a solid phase (Fig 2) &nd as a compound in
the solution. Its potassium salt was 19scrited (Ref 4). In this
paper the authors illustra*.ed a methol of synthesizing the
latter said by the interaction of zolytdic with hydrofluoris
acid and mentioned some of !to prcperties. Rising temperaturs
Card i/P (from 0 to 250) increases ths solubility of colytdii acid in

5(2)t 5(4) 507/78-4-1-35/1.8
.AITHORS: Nikolayev, So S., Buslayev, Yu. A.
TITLE: I* Investigation of Solubility and Hydrclysia In the Syn'Am
HF-NbF 5-H20 (Is Issledovanlye rastvori=oati I gilrOh7a V
siateme HF-NbF 5-H 20)
PERIODICAL*. Zhurnal neorganicheakoy khimil, 1959, Vcl 4, Ur 1,
pp 205-212 (USSR)
A.BSTRACT; The saLibillity of niotium pentixiJe in hylrafuor.,~: azil W-3a
investigated In the c,~ncentratlon range frc-- 0 to ICO~ 11F. 'I'hq
'Investigaticn of *the HF-XbF H 0 systez was carriod c-,;t ly moans
1 5- 2
of the is~~thermiz sclubility met~ol and other PhY31C0-Ch-'-'1;a:
methods. An analytical method of deter=ining fl--i7rine In
niobium mixtures has been workel out. The foll.owing nclil phqa,-,s
were found In the HF-1bF -H 0 system: ,I*-- 0,.2H 0, ov, F .14H 0.
, 2 2 111 2
5 2 2
.
HNbF 6*H20, and VbF 5* The compound Ub 2 F1104H 20 was nc-Pra:P1
in the form of large colorless crystals. The compo,ind "tF6' H20
may be considered a hydroxcnium salt (H 0),NbF Ahe
6-
Card 1/3 of nioblum pentoxido In hydroflucric acid leals to VbF-

SCV/'78-4-1-35/48
I .Invent"Cati t~v ,f SOIUbi !I ty and Hydrolysi s In the Systez HF-,,fbF5-H20
In th,? prp.3ent work. There are 8 figures, 5 tables, mnJ
16 r-fr*r-~t4rt--~., 7 -,f which are Soviet.
SUBMITTED: May 5, 1958
Card 3/3

Investigation of the System NY - To? 5 - 520
SOV/78-4-2-52/40
pentoxide with fluoric acid is a neutralization and at the
same tiae a coapl*x foraing reaction, wheroas the interaction
between vanadiua pontoxid# and fluoric acid to a neutrall-
sation reaction only. Thor* are 9 figur*s, 6 tables, and
14 references, 6 of whiol,-. art Soviet.
SUBMITTEDs may 19p 1958
Card 2/2

.5 (4) '
A915018i likolayovp No Sep Opalovskiyj A, A. SOV/78-4-5-38/46
21nas Isvestleation of the systes BF-Morfifti-O
It
olubility Irothersal Line of 0 0)
xasleftVanlye sixtemy 11-KOF CR20 (~soteraa taut-soriaosu 010))
e
PUIODICA,L: Zhurnal toorlanichojokoy khlmli,,9~9,~;el J4 Nr 5 -;-) 11 185 (U33R)
AWTUCTI no system, IF-KOF 6-5'20 was Investigated tiAte, method of the 0
solubility isothermal line. Molybdesua hexachlorlde and
b7drofluarlo sold were used as Initial products for the
pwpc,se of investigatift the sysies. Synthesis cf the
moly1deaus bexal' lunride was -;.*.rried cut ty f 1rcrir.&tion of a
aalybdenan netal ClIP30 Thw appaxatus ---a*! for thle ;urpos*
Is sham by figure 1. Krificatin~z cf the molybdenum
hezafluoride obtaiv%d was oarried out by z9ans of liquid
hydrofluorto s,old at the temperature of dry ine. The melting
jPolut of the purified prcduct is at and boiling poist
rj
is at 39-0. Ttso* data show scod agro"Wat with dote, found is
publications. XOP 6 is storod in Otsfl=4 Tessols with liquid
Card 1/4 sitroSen. The apparat-as system used for purifying the liquid

Lmstigatioa of the system IF-116-420 3OV/7L-4-!-i8/46
(Solubility lacthornal Lir-e of 0')
hydroflitaric. &~,3id in shown ty fig-irs 2. Us saL--tility of
aoly'bdearaa ILexalu-rid.6 in 100 !4dr-:f1u.-rio ac14 amcrAnte to
14,20 %. If the hydr;flui~rt,) ac*,.d is d1luted, the s~;Iubility
of the nolyb4oAua bsxafla~rtde in~res?ep. UnY. exists within
the regiom cf Cr -,,a 100 t; .9 % -A the ~,gpe of a 61 a 8 11
-24 pats X:FS C:!es -)Y*r into
N?; 97 H C, . 17 --' 3 r,. 0 -,1p -IL jj A ej rs at) be m);Yblenua-
4 2
tatr&f1U-.-fJT.,f ~ 1.1 F,*,.!H 0. Tr" exists within
2 , 2
the :If 'rfa A;-8 -- 34-7 % RY. Tho phuse vas thermally
inv*stigatel, an,4 'Ligu:-e 5 shows the tbermcgrom. At 45 0 the
compuand nqllv in ita own cz-.~,%ts! wate,7. At '6600 .'-.he yellow
powder of m3lybdeaaz tt.,Ioxi,~-- ~V-O 3" is fantal.
At 3400 an4 450(' c.*fP%t3 ati 4.r.-A 9~03
Card 2 /4 chaages itq colar frnm yellow ti g-#qr14r,;-y%e11zw t,.o dark

Investigation of the 3yetes "-say CR20 SOTM-4-5-39/46
(BolubUity Isothermal Line 3f 00)
In the range of concentratic-i below 17.2 1% - 0 U only
a2moo4 to formed. There are 6 figuren, 2 tableg, Lnd
34 references, 8 of which &re Sovt"t.
SMNITTM February 28, 195e-
Ca" 4/4

"MOT, S.w.; Buguyn. rm..A.-. OPAWTSMET, A.*.
ftgftjmg IWdrolytto processes and solatiOGG Of the MOST
fIeWdes of The dwnlm s4groW to IWdrogem fluartdo.
hm. In. old. AN SM me. lot"-56 060. (RD& 13sl2',
10 kettle% sbabomy t Goorgemichosk4w kbwt legal X.S.
ww"kewe An ~ t "Butut Wall 511birskedo
(Fluorides)

NUUATW. Ya.A.; NIKOLAM, U.S.; otrKTALOU, K.r.
ftaftlag 861211084 in the system IW - 8102 - k0. Law. sib.
otd, 0 SM so. 1067-63 6o. (NUM 13 s12)
1. fastitat obsbaboy i aeorgonichaskay khtmit tusal I[.$.
Narmakvwa AN SM.
(IV&ogos, fluoride) (silicon oxide)

too 68613
AA" 3/02OJ60/130/05/024/061
Of St 6"rmmqTjL_ 1. 1. Ao"daisian, A011/1005
Amiltow, To. of I/
lob"& MAK 2dL*4_&__
Son Whets of Proper"W P
PUZODICALO Sekleds Mmdemli seek SMv 190t Vol 1)0, Ir 5, pp 100 -1043
ADSTUCTI By She mothods usel bitherief h-Ummm"MAMAOUld not
be prepared is aqao~ "&*%Los ~Imso aWhydrelyse irreversibly.
so authors tomed "at a alaters of breel" with bremor"t-m-
tlumddo dissolves mUllie platimum rather quieki, (pw* ar,15
"" met "S on platinum). A ago-follow Crystalline Oca-
90=4 Pt2v2Fjq was obl"mod by owsperaUng Me colation. ?Me
aml$ As Ins"Glassously bid"Irsed by water revalue brostime
Weverms to to Imeoluble In hore"m flueridel, inflame so
smatest With alsoult OW does "S re"S with eel V Mr?10
Is sell soluble in WIF )0 When peftesim fluerido to added to
the resulting sloar red solution 04 the solvent Is removed
ca" 1/3 mAer vasum at raw tompersturst 9 21P%r6 01. 1 Drip)remains

681613
low Methods or Preparing uzarluoroplatinates
ASSOCIATIONs
SUBVITTUt
S/OZOJ60/130/05/024/061
B011/3005
BrF3 to forsed besides the difluorotromontumbexafluoro-
platinat* (0*0 30henes (1), (2)). Accord1ng to the snalytical
datag the summary equation Or2 * .53rF Pt -(Or? 2)2 Pty6 4
-Irf
+
, 3 corresponds to the reaction products obtained by the
authors. T, A. Golaywaad S.K.Sokel are sontioned In the
paper. ?her* are I table m4 14 references, 4 of which are
Soviet.
Institut obahchey I neorganichaskoy kkiall is. X. S. Kurnakova
Akademli sank 3331 (Institute of General and Inor-anio
Chmistry lueni 1. S. lurnakow-i"s the Acedeal of Sciences*
T~ I
October 14, 1959
Card 3/3

9/020
./60/132/02/37/067
Boll/9002
AMORSO tC~b22nyG7o!,_1- I., Academician, likolawov# 2. $.# Ippolitow, To. G.
TITLEe low Methods of Producing Roxafluoro Flatizatestilluorination by
Cblorotrifluoride
PERIODICALs Doklady Aka4omI1 nauk BSSR, 1960, Vol. 132, No. 2, PP. 370-379
TZXTs Sine* chlorotririuoride In the moot active fluorinating agent among all
fluorine compounds and does not develop by-products during fluorination, the
authors Investigated Its action as a platinum - potassium tifluoride nlxtvro.
The present paper Is the continuation of a former one (itef. 1) and its purpose
to the development of a better method of producing potassium h*xafluoro platinum.
The authors found out that I t1 " in the above mixture (5 9 of platinum black,
3 q of potassium b1fluorld* to compl transformed into potassium home-
fluoro platizate after being boated u;tZo1y2000 In a nickel boat in the chloro-
trifluoride current. ?be product Is separated fro* the potassium bifluoride
excess by means of rearystalltsetion In hot water. The conversion of potassium
hozaebloro platimsts in potassium bezefluoro platinate by swans of chlorotrifluad&
showed even better results. This procosso however, must take place at 5000 with
Card 1/3

New not Mdo of ftedusing Sexafloore, platlostoo. 510",101131/02/37/067
Irlsortmatiom by Quorstrifloorlde DOI I/DW2
gasoolso CIP) (reaottoa'(i)). This press@* strotekso ever approximately 1.5 h.
fte beat saa only be removed from the quarts tube In sAlob the *xportment was
soffidustede after It 6" toes awled does# otherwise 99M& coal& rase% witb the
atg*~Pb*rl* moisture. IMW Orystale Atalsed, by reer"IsIlleaties Is eater core
cOmple" Ideatl4al with those ablolmod, after the presses at 2000. ?Ike authors
develop" a sotbs& for the analysis of z2ptp6 by asum of the pyrobyarollets of
the weighed parties 9114b ovorbeated vapor (Rot. 1). This method bosever, was
too t1so-oossuming. Therefore they ouggeolk another motbodo a weighed portion of
salt of 0.2-0.4 6 Is gigod In the platinum beat with I a of calolood mods MA
60~04 by a Soda IN". Pop i~-20 odo. the beat to bested In the quarts tube
In tin It ourroot or to 4W. fto lose Is VOISSO one determined after the boat
WA boom ooolod down. It am In agreement with the "motion (see Squallon).
After the somplo me leashed on a filter by hot wat*ro the platinum residue
one annealed so the filter and weigbod. to the filtrato, floorlso 9" determined
so Pbellpt 04 potwelve as "016. The mallets 414 not take more tbas one day.
fte density of Ike 6706691664 PrePention no 4.79 #/"1 (in publiGations it Is
4.63 6/46;P)- "tigents siAb poesse floortse under the own sonditions obosed
that 1921MIG 10 trometersed late potassium begarlsore platisato. Its Field
however# Is snob lower sad requires purifleatioa by roorystallisetlon. "wro are
card 2/3

87404
!1) 1,111D
S/020160/155/006/019/037
B016/3060
IUTHORSt Duslayev, Yu. A. and'.N.Ak -
TI?LZs Investigation of the HT - HfF 4 - 920 Systea (Solubility
Isotherm 25*0
PERIODICALt Doklady Akademii nauk SSSR, 1960, Vol. 135. No. 6,
PP- 1365-1387
TIM The authors report on their study of the solubility In the
HY - UP 4 - H 20 system. On the one hand they wanted to determine the dif-
farenc*s In the solubility of tircontum- and hafnium fluorldot and the
coapositioti of resulting solid phases, on the oth*r. f~o find out these
differences the authors examined the 9081 distribution between liquid
and solid h so In the abovementioned system. Data found In the literature
(Refs* 1#2~ 11acnore Important circumstances, and the results are therefore
distorted. The method applied by the authors has been described earlier
(Refs- 3,4). At a molecular ratio HY # HfO 2 < 4 and a tomperi,turo of
2510.10C the reaction had the follovine courset
Card 1/4

87404
Investigation of the EF H fy 4 'if20 syntem S102 60/!3c,/00,e/019/037
(Solubility Isotherm 25 C) B016YB060
6KF # 411C1 # Hf02 ' K2H fl? 6 # 4KC1 # 21120. Table I 7h,)wj the In
the mentioned system and the 7,-)mp,)oii1on c~f thO TPG1dUefl fr(;m thp reac ti.)n
(solid phase). In Y1g* 1 the onto lot& are presented in A Gibbs diagram.
The considerable decrease of silulility ohoorvable in the curve is, In
thit authors' opinion. due t) the formation of 9 2Hf1P6 *2R20. This solid
phase is incongruently soluble. When the mothor lye to -vooved this phane
decomposes. Table 2 shows the ch%ngg Pf the distribution coefficient of
Ef 181 etween the liquid and the solid phase in the BY Z'rF 4 -H20 system
on the basis of the ratio of specific hafnium activity in the solution
versus the Initial activity. In the concentration range of hydroflu,)ric
acid, which corresponds to the existence of the solid ZrF 4. 3H20 phase,
the authors found no divergence between the solubility of zirconium fluor-
Ide and hafnium fluoride. The Greatest difference in their solubility to
attained during the crystallization of hexafluoyo tirconic acid from
15.6f$ R? on. It an HY concentration of 50.58% the solubility of hafnium
fluoride is twice that of zirconium fluoride. The authors conclude on tte
Card 2/4

Inyqptigation of the HY - HfF 4 - R20 System S10201601135100610191c'~'I`
(Solubility Isotherm 250C) B016/2060
strength of these results, that the higher solubility of hafnium fluorldo,
as compared vith that of zirconium fluoride, is conserved in 11F solutionn,
in the came way as it is conserved in the cane of potassium- and atmonium
fluorides of hafnium in aqueous solutions. There are I figure, 2 tablen,
and 5 referencess 3 Soviet and 2 German.
ASSOCIATIONo Institut obshchey i noorganicheekoy khimii im. N. S.
Kurnakova Akedexii nauk SSSR (Institute of General and In-
organic Chemistry imeni N. S. Xurnakov of the Academy of
Sciences, USSR)
PRESSIMEDs July 7, 1960, by 1. V. Tanan4oy, Academician
SUBMITTEDs June 4, 1960
Card. 3/4 - - -

574014
S/020/60/135/006/019/037
MID* - I -f^
.
/OUI/Z.A~
t
.Isr
J. b. m
A~tev No ti
Card-4/4 - - -_ --
0MF
- - -
9 dv iv 'V
-

N. Po# A. At Nkysemp go D. WryoUng S. ff. fadulkewo
a. mm~t A. D. mmm&iw
"oxbow of Flawift CUOMO") Nmw# 6001"S"to 19U. 347
ik sup lowirt". "m O"K" Pda".
(StU po): ff. F. ftMao Do~ at I I I'ma "e~, Proteamr;
IK. -. It. A. KnIbUm; ?a&. IN.: I* So ftrm.
3 lug boa is latemad for dwdml ma we"W "Omore MA
toa*mm mod stmosau at odmwlr of WL$Mr Wkmtlmo
go Mae~ swwlom ftvlot md mo*4bvUft Uftntom pabUsMa
to vim 1960 on 60 Optabdodml pwpw%Aft at umlim fUmlas
ad sewmdo at prododas an fho "Its# slump MA woULU* unmlvm.
ibtbww of pnmossims umam dmdml on 1 -1 1 1 to vw t*tnt- 04 bm-
fluprl&wt Adah an WU&l pmhwft In 00 pro6wUm of avelftr fWlp
au'd 40

07/B2
AUTHORSt Alenchiko7a, 1. F., Zaytouvu, L L.. LFia,
Nikola,yev, 'I. S. , Fomin, V. V. , Chvbc~tarv~
TITLLt Properties uf ;~Iutonyll fluoride cnm~:oze3
PLRIODICALt Zhurnal neorganicheek.:,i khimii, v. 6, nr,. 7
T9XTs The object of the present stAy was the proluct'(,n -ard
of plutonylfluoride complexes with alkali rstais, 71.0 8.1steas
FuO2F2 - X*F H20 with Uq - Na, 1, SH 4- Rb, Cs wtro Inveotigalel tn the
range H*/Pu to 50 by a*ans of electror absorptinn 3pectra The ;atter
Were recorded by means of the ol,%P-4d' (ISP-51) qpestrf~grarn at tho t:!:Ing
t liquid nitrogen. Tte Tompounds preyarqd were ana.y7ed;
T:mPle"Ituprrovoides a list of the compourds produced as we:! as the s.na:ytical
values. The compounis MePul"I2F3'H20 are isotopl: art --f -~b-,: sy=r--try-
FIg.2 showu schomaticalij trq Fowdor vsSra!ts, ottainqd 'n 'he r-, -116
(RAU-86) camera with chro=iuz radiati~y- for the f,~' *-oving lcc-,,-,-~;r-l~
(lattice ccristant in bracketq)i XP,A: YX.H ) (9 '2~ i,, RtP-;~ F 11 0
2 1 2
Card '/4,,:;k-

NIKOLULT, U.S.; IFI, L17CVP Ye#Gs
-.- 11--'.~
Prep6ration of anhY&M4 hydroges fluorld-efr(A OAMOMfis . - *
,-0 , ""),
MA hydrogen MuroneorgMiz, t j . ~
(Kw 14 14)
(Hydrochloric acid) (Ammonium f Iuoride)\ (Hylrochlcric acid)

ALMNUOUg 1.1r.1 LWISt LoTe; NIKOLAMP IIJ-
- oh
M~Uffium at an Gp4m raorp-0
ews, 10 M*6499a-M Jb 1 0
(=: ;Wqw~)
.
(J"U~ acrc). Atom.
(MIPA 1416)

B102 B214
AUTHORSs Nikolayev, 111. S., Luklyanychev, Yu. A.
TITLEt Investigation of the hydrolysis of uraniu2 totrafluorido
PERIODICALt Atomnays. snerglya, Y. 11, no. 1, 1961, 67 - 69
TEXTo There are0entirely different and sometimes conflicting views on the
problem of the degree of and conditions *or the hydrolysis of UP 4 in water,
and wh9th&r it occurs at all. Conflicting views are published, for
*z&ap1*q in Rofs.3 and 4. So the author* of the present paper haw* Inv*sti-
gated recently the hydrolysis of UP 46 The totrafluoridt in the form of
U? 4* 2.5 H20 was obtained by the electrolytic reduction of uranyl fluorldo
solWon. Experiments were carried out on It with the help of the cation
exchanger K'/-2 W-2) and the anion exchanger )Aj-101 (EDE-10P). Experi-
aents showed that the uranium was absorbed by the cationits by up to
90 - 95%, and not at all by the anionit#. From this it may be concluded that
9 ~3 1
3/08 I/Oil/001/010/010
the UP4 in the solution is present in the form of cations. The hydrolysis
Card 1/5

Investigation of the
25J61
S/08 61/011/001/010/010
B102YB214
of UF 4 was followed by pH measurements at different concentrations of the
aolution. These measurements had an accuracy of !0.02 pH units. The
results are shown in Table 1. The saturated UP 4 solutions are soon to have
a high degree of acidity, which can be explainel only by the assumption of
hydrolysis. The data obtained in two series of measurements were used for
the calculation of the equilibrium constant of the hydrolytic reactions.
0
The hydrolysis may be described by the reaction equation UP 4 +nH2
4+ 0-&
U(OH),F&_,+nHF, or, if account is taken of the low solubility, by U +nH 2 W.
U(OH )4 (4-R)+nH+, where n is the number of hydroxyl group n 1-4. Thereby
(OH) +(4-n n n+1
IU n
one obtains for the equilibrium constant X P- -Fu 4+
C to the total concentration of uranium in the solut)On. Table 2 gives
the N P values obtained for the two series of measurement and for four
different hydrolytic reactions. The general instability constants for the
Card 2/5

I.V.1 NIKOIAYEV, U.S.; LUKITAItICIVi, Yu.A.; CPALfj*;S -Ty) ? j..
TMXAMP 1~. "
CbmIxtry of urmlum fluoridop. Ullp.khim. 30 no.12:1490-1522
D 861, (KLU l4t1l)
1. Institut obahchey n9orpnicheskoy khimil imad N.S.
Xwmakovat All WM. (Mranium fluoride)

Synthesis of Complex Fluorides of S/0-0 '6 '/1 '26"CO','023/0! 7
'X3~'
Hexavalent Rh*nIum B016 55
product corresponded to the formula K 2R6F a' After several hours In air,
the raspberyy-colored crystals begin to decomposes accompanied by a color-
change via pale blue to black. This is due to hydrolysis, by which water-
soluble products forming pale-blue solutions are obtained. X 2BOYa is
soluble in hot water forming green solutions which soon turn brown owing to
hydrolysis. K 2ReF 8 can be stored in polyethylene &=poules, but rapidly
decomposes at contact with glass and corrodes it. K 2ReF 6 is soluble in [if
with decomposition and precipitation of Ref 6' By dissolving K 2ReY8 in HY
containing 0.02% water and cooling the pale-blue solution to -700C, Palo-
blue crystals consisting of potassium oxyhexafluorhenate K 2ReOF 6' 2HF were
obtained. With water, this salt forms a pale-blue solution which after 10
min turns green and soon after brown. A similar color-change takes place
on dissolving the potassium oxyh*xafluorhenate in HF. Though the authors
did not analyze the crystals precipitated from the green solutions on
coollng, they assume them to be a hydrolysis product of potassium hex&-
fluorhonate, for instance K 2R*O274* The substances prepared (Ref. 2) wore
Card 2/3

89732
3/020/61/136/003/016/027
to V ID9, I 14 1 1'z 7-S B016/BO52
AUTHOM Nikolayev, No So and Sukhoverkboy, V.
TITLE: Was Complox Compounds of Boxafluorides of Kolybdonum,
Tungsten, Uranium, and Morides of Cesium and Ammonium
PERIODICAL: Doklady Akadomli nauk SSSR, 1961, Vol. 136, No. 3,
pp. 621-623
TZXT: The authors report on the synthesis of complex oosiounds of
molybdenum, tungsten, and uranium hexafluorldoe With C021an and aamonium
fluorides of the general foraul 6 Us? They used a fundamentally now
method based upon the interaction of 4o above hexafluarides and fluorides
with trifluoro chlorine (Cl?3). The following reaction *chose was assumed:
Cir 7:=tC11P+ + ?-I n[CIF+ + sop
3 2 2 6;=~(C1?21MoF6-n'
IF + (ClF2]nM*?6+ft;r~-n Xo?6+n + nClF,, whore No - No, T or U and N
represent the alkali element. The authors give the solubilities of some
Card 1/).

89732
Now Complex Compounds of Hexafluorides of
Molybdenum, Turgeten, Uranium, and Fluorides
of Cesium and Ammonium
3/020/61/136/003/016/027
B016/BO52
components in CIF5 ohloh they determined (except for KHO) an being very
low. The reacting solutions wort mixed in a Teflon vessel. The authors
succeeded In obtaining the final products in a pure state, duo to the
homogeneous character of the reaction and the absence of side processes.
Since these products formed as precipitations difficultly soluble in ClF3,
they were washed by CIF3, the traces of which sere then removed In
vacuum. The solubility of KHO could not be determined as it burns
rapidly, sometimes even explosively. Small and dry portions of It sere
therefore added to saturated hosafluoride solutions of No, W, and U In
C173 cooled down by dry ice. The precipitation sas also treated with a
hexafluoride solution and then washed three tides with ClF3. Table I shows
the results of the analysis. There are I table and 15 references: 2 Soviet,
5 German, and I International.
PRISINTZD: September 19, 1960, by I. V. Tananayev, Academician
SUBMITTED: June 4, 1960
Card 2

27879
S102 61/14C/001/016/'024
The problem of ... B103YI3101
vapor pressure at 2000C. All operationswere carried out under coclinf
with liquid nitrogen. All alkali fluorides, except for lithium fluoride,
were found to react in two stages according to the equationst
ReF6 + 2MPF - Me 2ReF8 (1), and Me2ReF8 4 R~F6 2k',PRPF7 (2). (11)
describes the reaction at a rjolar ratio betweefi_-RiW6 and alkali fluorid-
of It2 at 2000C. Pink octafluoro rhenates Me 2RQFeare formed, whc-re
Me - Na K. HL, or Cs. At low temperatures, the 102 ReFA (excvpt for
N&2ReF6) add a further ReF6 molecule according to formula (2). Thus,
yellow haptafluoro rhen4tea MeRoF 7 are produced, where He - K, Rb, or Cn
The MeReF7 differ from Me 2ReF8 by their color, crystal shape, and chemi~jil
properties. The heat resistance of MeReF7 decreases in the order
Cs >Rb >K> Sa. XaReF 7 cannot be produc,9d at all, wherpas KReF7 starts
di-Psoclating at 500C according to (2). and after long atoring in vacuo is
transformed to K 2ReF.' Thermogravimetric studies in %he iry nitrogen flow
Card 2/4

The problem of...
27879
S102 61/140/00'/016/'02,',
B 103%, 10 1
showed that KRPF7 rapidly decomposes at 200 - 5000C with ReF. escaping.
The res!Aie after rlecompoaltion amounts to 59~~ bi weight which corresponds
ths~ K,14-F wotght calcL41at-i accordir.,,q to (2). Beat rpaistance of
K-R-F& is v-ry h!gh. Only at 7000C, the weight inconaiderably decressen,
afid a yellcm. hPtProgeneo,.Lq produ7t is formel Although RbReF 7 a r, I
cq'~ieF7are mire rpsistant than KReF 7 they are completely transformed
aicordtng to the equittion LIPRPF7 * MeF - MY&I) (5) under heating with
corresponding fluortdes at 200'~C. The salts prolucal consisted of one
crystalline phase. At 7 G. Kuznetsnv's labornfory, the X-ray spectra of
those salts were recorded -in-a-n-1-onization cha=bor. The lonnity cf
KI)ReF was found to be 4.55 g/cm3. The magnetic =o=ert 4-eapurpd by
V. I. Bel~va in Ya. K. Syrkin's laboratory) of all MP2 ReF 8 is 1.7 - 1.6
The VeReF7 are also paramagnetic, but their magnetic momont is smaller.
than caliulated. All Xp2RPF, kex,7ept for 'Na2RPF, ) are almost urnolublo
in water. 'When 1,~ft standing with writ-t- for z~,vaten, thp nollition
Card 3/.1

S/06 62/000/00VO03/014
B11OY13101
AUTHORS: Buslayev, Yu. A., Bochkareva, V. A., and Nik-clayev, N. S.
TIT&L---: Reaction of titanium dioxide with hydrofluoric acid
PERIODICAL: Akade:niya naifoc SSSR. Izvestiya. Otdelen"ye khimicheokikh
nauk, no. 3, 1962, 588-392
T'--'XT: The solubility of titanium dioxide in hydrofluoric acid, and the
compocition of the com pounds formed in the solid phase and in solution were
determined. The TiO ( ' impurities) dissolved in HF, was stirred,
2 ~0-5 )'b
toeether with the solid phase, for 24 hra at 25 C. In order to control the
equilibrium obtained, saturated solutions of TiO 2 in HF were kept fQr three
months in the exsiccator over KOH. When removing H? and H 20 from the
solution, a solid phase was separated which was stirred in the thermostat
togethor with the solution, and analyzed for Ti- and HF content. T1 was
reduced by neane of Zn-Hg, brought into ferric sulfate solution and
titrated by means of MO 4. HP In the presence of Ti was determined
Card

S/062 /62/CC.0/00 VC-C 3/0-, 4
Reaction of titanium dioxide with ... B1111073101
potentiometrically. To reduce the solubility or X TiF69 4-6 Ml C
2 2
were added besides KF- The solubility of 'TIO 2 increases alzoat linearly
with the HF concentration. In saturated solutions, the molar ratio of
fluorine varies between 4.01 and 4.33, as [TIOF '12- was formed In the
41
solution. The first solid phase Is about TiO 2 * At 25-95-39.60 ;~'D of HF,
TiOF,-H 0 is formed. In a solution with the ratio F: TA' - 4, a chanre of
~ 2
the particle number from 1.45 to 1.22 was determined cryoscopically.
Concentration dependence and dissociation point towards
TiF + 2H 0 *-* (TiF *2H o-1 i:=- H+ , r, IF (001 0]. The devree of
4 2 4 2 A 4 2
dissoclation of hydrated TiF 4 agrees with the electric conductivity of
titanium solutions of the ratio F/Ti - 4.2. The steep rise of the molar
conductivity with the ratio F:Ti is explained by the following equillbriuz-:
H(TiF4 (OH)H201 - HF I-t- H[TiF 5H 20j V- H+ - ~"Y201
H(TIF5H Al - + UP q--& HjTiF~j I--k- 2H+ + [TIF 61 2-. Two solutions w!th the
Card 2/3

S/062/62/OC,'/CO' VC03/0 14
Reaction of titanium dioxide with... B110131ol
concentration 0.5 and 0.22 mcle/liter TiF4 were titrated conduct3motricalLy.
A well marked break in the curve of conductometric titration at thq ratio
F/Ti - 5 proves the formation of pentafluorotitan'la acid iii[-'i- -~ -,he
5 2
conductivity increase at F4j7,i>5 occurs owinE to forzzat-.or, of hexafluoro-
titnnic acid, which decomposes according to: (71F -12- H20 ~7i F'L 01 F_.
6 5 2 1
Therip are 3 figures and 3 tables.
ASSNIATION: Institut obshchey i neorganichookoy khizli 'Az.
11. S. Kurnakova Akademii nauk SSSR (Institute of General
and Inorganic Chemistry imeni N. S. Kurnakov of the
Academy of Sciences USSR)
SUBILITTED: October 10, 1961
Card 3/3
lo

.1 1 Ippolitov, Yo. Go , rnd liikolAjov, N. S.
'OroDcrtica of complex fluorides of hexavalent rhor,~.Um
.7~ -OD-rC,.-, A~tademiya nau,: 3" 7ZVQZtj.7a.
Otdel en iYo L ;,= I i
n,-~uk, no- 5, 746:755
Tho 9,,nthesis of complex rnoniun(VI) fluoridoD frc,-. :.ultor.
A. 6
-inil z-.1kili fluoriden has the folio-nin.- courae of re-ction.
e + :~C-
6,% 5 -7
+ I.
+ 2:,F R 0 F + ~tei,61 "lei' + IPF +
2 a 5 7
(Ict.,,.fluoro rhenateu of alkali metals hydrolyze in '.he auccesiion:
C. :1.0? > Rb Cczium ~-_n~! irio-~iu= salLs
2 F, 2 L c3 2 (3
i=edi,%tel,,, Yhile potarnium. and ~:-Jbldiu:-_ o_ltr; t:~,:C. in
cold water. Hydrolysis is considerably Gpeeded up by stirrini, and
~;.-_rd 1/ 5

j - 2 /~.; r
I~rcporties of complex fluorides of ... B 1 11 OX I G
t ir.,-,. Blue solutions are formed by the -,ddition of 4c',, or 'Ce
wate-- (30-40 nin ntirrir.,-,). The latter reaction .,as for-r.:
.51
2~ 2
,-,r.~70r;Aion of tho o 1 u t i ono . II, t 1. i t
c ez;:~ i on :Os!.eOr'5> 1% b I, e C -.;'55 5
:~r-ted in decomposition
I Y 4 of
L;oluble in watur, alcoliol, and kotonoc.
0
.,:Pta:;ziur, octafluoro rhenat,? in dilute volution: at 13 0 by
conductivity method Dn the conduc,
.ioctions vere enstablished at O.C~011 mole of K r. c I uo.-.
21 U-
V: i*#
ysir., ~2' aiG2,roportionatic,.-, of 1,c to ~-,G 'Ind
:,I . it I I
oxld,~tion of :10 . o .,) C by means of atmoaphn.--c
ro.IIo,,-'n,: roL-tion taken place.- 4',' ) " * I tI ur0 k"
-2-0.a 4. 1 1,. '-2
7-i,~ lue rolutions decom-pose as Afollors: 57 ,-.e'~,
2 L
C
,
ar! 2/5

.'ropertior, of complex fluorides of Bi IOX101
+ ." 1! 0 0+ 7~ .0 -2il 0. lictafluoro rhel-i-tcln
1 2 - 2
similnr to th;-~'. of an u.-,-,+,,,i.-od clectro
oner;,etically rjeakly bound in tho On
Vi Cc
-,,-I Onco :;tatj of lie un5table and ellfect3 rodox roaction: illspro:ort4
i;ctior, by neans of KI in aci,! mccliur, oxidaw'.o,,-. b-., n,.(!ntD.
--ce the poten.iP.11- of -0-76a + O.UOI Y, an~ IIonu of
4
Ali
0 3.368 v, 7ieO An a weaker oxidizinr, rii;ent th.
2 3 f
"0 medium Reo ceparates iodine from iodides and is oxiclized to rhei~ic
3 4
-cid by.,FeCl 3. Rheidium hexafluoride oxidizes silver and c;old all 0.
iodide# reaot readily vith hydrazine a.-,d aul"'Urouz acid in
acid medium, separating a black anorphouo precipitate in the process.
:n aaturatod KCXS solution potassium octafluoro rhenate dinzolveo in
15-15 min to form a green oolution. From the latter pyridine separates
C .100(0,;5 L'7-17 0.
;ellowish-j,-reen crystals of the composition 2(
5 5 2 2
.,~xavolenl rhenium is a strong reducing a,-,ent in alkaline and neatral
C-rd 3/5

"A "/C,(,C,/ G(, 5/ G~-, 2/0'-13
ol' uomplex fluoride:i o''
b G/Bl CA
5..'6 for "P.17 kX, c --Z.
7
'o:1, natitut
-u rn c- ~,. o v a Ak a ~-i em i i n3 j I r. s tu t e o n r
Ir.or7fl.n ' c Che" i r. try N S . Kurr-~~-O'-' 0 f tile Ac. a c -,I-;
of Sciencea USO.")
.j-j i DeceMber 15, 1961
Card 5/5

IN
lavc, ve j
k, t i L. r C. -1 f i T"i
-IT
l A
f ;74, Li
'371 Qf
~!T Li t-'t X;

Lfl. ~) Y
S/07 62/r,07/007/011/013
2119Y3101
AUTHOASs Nikolsyev$ 1. S.# Buslayev# Tuo A*# Custyakova, H. P.
TITLEs Study of the interaction In the system HT - ZrF 4 -H 20 a t 25%
PERIODICALs Zhurnal neorganicheekoy khtati, T. 7t no. 7, 1962, 1685- 1692
TEM The solubility isotherm of the system NY - Zr? 4 -R20 at 250C in
the RP oonoentraiian range between 0 and 70*49 % was studi*d. Using
ZAP 4' 311 20 as solid Anitial phass and following the method of invostigation
de"oribed In an earlier paper by the two first-sentioned autgors with
1'. V.. Tananayev (Zhs neorgan. khImito it 274 (1956))6 At 25 C# the system
shown the following solid ph&**@ ar40 31P 10* 62 20 at an BY concentration in
thn liquid Phase of 0,51 - 1.26 by weigbtj UP 4# 3H 20 at B-50 - 29.20 ,
Sri MWF564120 lit 29-83 - 3)-79 KIN 82 Zr1P 6.2N 20 at 33-79 - 70-49 ~ HF.
The compound NZr1F50402 0 was analysed by x-ray diffraction, thermography,
and thermagravinotry, It shows ondothermic effects at 60, 100, 125, 300,
Caid 1/2

~1 O'2XI 5~.
cc
AUTORS: Nikol"ev, N. S., Ljklyanjchev, Yu. A.
T IT LE: Determination of the nolutility proluct G', %h~;riijm tetrrtflu~-Irile
FERI GD1 CAL: Atomnaya enerGiya, v. 12, no. .1, 196;1,
Tj 1.7. -, :V .1. Spitsyn ("ih. run. f iz .-khir,. o-va , .12, 311," , 1 ',01'1 '' . ','.
-ananayev and A. D. VinoGradova (Zh. neorranich. khi lo,
1957) had already determined the solubility product of, -.-h?4 and Ohtairlc.,l
1.2*10-'9 and 1.04-10- 24, reap-ictively. The pre3ent author3 the
solubility of a ThF 4. 0.5 H20 as a function of 'Uht, uelvent (liclo CU
tion. A-he solubility wan found to Increase rapidly with the concentrat4~,n
up to about 0-5 9 IJC104 which indicates a reaction of the ty;;P
ThF4 + (4 - n)H+I, 'Tht n + (4 - n)IIF. Thin reaction can be described Ly
Card 1/3
+
0 /r. j, fl) ~ /0 12 Ir C 44

S/C~)? 721~,~410121CI,'
Determination of the solubility ... BICN/B10.1,
where Kp in the equilibrium constant. As the IIF 4Solubility is a 'flinction
of the hydrogen ion concentration, n can be determinel from thr E;'LC'10 Of the
straight line -logS - f(pil) ((4-n)/(5-n) is the tangens of inclination).
The reaction equation reads: ThF4 + 311+r--ThF 34. + 5HF; thf, equilinrium
constant in 8.1010- 11. The solubility pro4uct in obtained from
SP - [Th'+][F -]4 ith [F-] - 4 [S'4hl/(' - [11+]/k,), k,, 6.9-10-", the
dissociation constant, and S T h 11-K
ITh" I
P 11
iThF
1--4- For K ThF3+ - 1.2-10-6 and KI.hrH3, 0.15, SP
obtained. The deviation from the SP vallie obta;ned by Tanana,7ev an4
Vinobrradova is attributed to the fact that they neglected ccrpA'exhtion and
Card 2/3

3/089/62/013/002/00?/Cil
3102/BIC4
AUT1101IS; Luklyanychev, Yu. A., Nikolayev, H. S.
I --
TITLE: Solubility of uranium (IV) hydroxide in hydrofluoric acid
solutions
PLMODICLL: ktomnaya onergiya, V. 13, no. 21 1962, 179-161
";Q .
-4T: As only scarce and contradictory data have hitherto been published
on the interaction between U(IV) and F ions, the authors examined the
solubility ol" U(IV) hydroxide by two mo%hods: (1) Freshly prepared U(17)'
slime was filled into a teflon container with a stirrer and a hydraulic
seal and kept under a H. atmosphere. Equilibrium was reached after 3 hrs.
,(b) Topather with hjdro"luoric acid the U(IV) hydroxide slir-e was filled
into a polyethylene flask and nitrogen was passed through It. Equilibrium
war. reached after 25 days. The u4+ concentration increased with the molar
-T' conqentration (H:-: 5-10- 4, 1-10-3, 1-1 6-2 ; U"+. -,.1.6-1r-5 -5
I.- , , 6.6-iC. I
i.ca-10-4). Results: The dissolution is characterized by the formation
of complex ions: U4+ + nHFj= UF4.;.n + nH*. The change in the HF
Card 112 n

BUSLAM, Yu.A.1 BMHKAREVA, V.A.1 NIKOLAYEV, N.S.
Interaction between titanium dioxide and hfdrofluorlc Picid.
Izv.AN S<.ltd.khLm.nsuk no.3034-392 Pr 162. (MIRA 15:3)
1. Institut obahchey L noorganicheskoy Wail In. N.5.
Kurnakova AN SSSR.
(Titanium oxides) (Hjdrofluoric acid)

S/020/62/145/001/025/030
Fluorination reaction of ... 8106/B158
to 1000C. If temperatures art still higher, UP 5 is formed as a reault of
the reactian 3U2F 9 + ClF 5- 6uF 5 + 112 Cl 2 (4). The dipping part of tne
curves in Fig. I corresponds to a decrease in the &count of UF 4 and to the
predominance of the U2F9 phase in solid residues. This phase is fluori-
nated in the course of the reaction f8llowing i~q. (4). iinall~~, the
almost pure phase UFF5 is found at 150 C- It continues to react with
chlorine trifluoride, following the pattern 3UF 5 + ClF3 43b76 + 112 Cl 2
(5). This reaction shows a much lower Intensity thain reaction (1) so
that the Ue6 yield diminishes and finally reaches a minimum. within this
minimum, the formation of UF6 takes place exclusively via uranium penta-
fluoride. The higher UF 6 yield with increased tompirature (up to 500C)
is caused by an Increase in the intensity of reacti-a (5). The fluorins-
tion of UF4 was compared with the well known reacti-n of uranium tetre-
fluoride with gaseous fluorine (Ref. 0 so* below) -4hen fluorine acts
Card 2/5

S102 62/143/001/023/030
Fluorination reaction of ... Bio6ylma
otperiments. ClF was only formed in unimportant small amounts which wc.,re
p-.obably caused by secondary reactions. There are I figure and 5 non-
S~)viet references. The four moot recent references to Englinn-language
plablicatione read *a followoo H. R. Leech, Chem. and Ind., 1960, 5, 2421
Y. Y. Labston, J. Inorg. and Nucl. Chem., 10, e6 0959h Ref. 4s
V.. Y. Labaton, K. D. Johnson, J. Inorg. anr~uol. ChTm.,)1-0, 74 (1959)1
L. Stain, R. Vogel, Ind. and Eng. Chem., 4-8, No. 3 (95 -
P2LSBNTi;Ds October 11, 1961, by I. V. Tananayev, Academician
SU'BUITTEDj October 11, 1961
Card 4/5

LUKITaycm, %.A.; N-11-oLkYEV. ASTAKiWv,, 1.1.1 WKITMCWA#
voie
Webmim at eopper fluorinatlas at " toWmatum, 99a,
AN ~ UP no. M130-U32 9 162. (Kru 1682)
lo betitut obobehey I noorgentehookoy ',Jdmdl In. IA NArmkova
M 9M ftWetaylose "mikom ToP. T~ywryuo
(Ibppor) (nuorlmatim)

UCHDUUUP 1.1.1 NUOUNWO U.Se
nwvrm~too in tbo systm *f the lb~Geri - XF - 1~20 type. Sburom*rg.
Min. 8 uo.3t734--737 Mr 163. (KIM 164)
Is lmtltut obobeboy I asorganicb"koy Ithfall Imal N.S.Kurnakova AN
=Rl
(FImprmnatem) (Jb*mflwrlc acid)

LUKIYOTCM, Yu.A.; NIKOLAYEV, N.S.
Solubility products of uranium tetrafluorld*. Zhur. near
Min. 8 no.7:178,6-1788 XI 163. (KMA 16:710
.L. Inatitut obehebey i. noorganicheakoy Wail ineni N.S.
Kurnakova AN SSSR,
(Uranium fluorides) (Solubility)

Icc-ns,1011 Ifni AP50OX9813 slrc,9916 51/015/c0, 1/00~31/0081
AIT~ 11CIII; 111kola av, 9. 9.1 Shiallikoyl. Tus,
rl' n s Fluoriration of uramium sulfate by ohlorinft trifluorido
SOURCEi Atomanya eners-iya, ve 15, no. 'I, ir,63, 81
T OPIC TAGSi fluorination, uranium aulfnt", cMorinn trif luorlds
AT~-",PAC2i The aiithors have atuiliod tl-,,! f lue~rlration re-action of uranium sulfate
by a F17neocum chlorine trifluorlde in P. horlv=tal -cylind-rical nickel rusactor.
CIF Ratoe or. U(SO for an hour at -erlo-un te=j~eruturev. The cc=position of the
4)'
.te vjim aral",mi chn,-Ically an(' 1y. X-ray diffrltcticnwe~ The Yield of rtne-
vol~d phri y- --.- -
tionc wA;i m,!anurnd by T76. The rosullij Pro givpn in a table.* T tie fluorinstion,
reaction lo descrlbo!i 1-y a 0v,,nIcQI for.-,~Of-, Crip,. ftrt. hnst I frjr-.-ila and I
t Mb 1 e .
A *51SC-Cl Ar. I Or, snon"
',-,%':T T F.j
Card

LUKIYANTCHELV, Yu~A.j NIKOLAYEV N,S.
Solubility of uranium tetrafluoride in aqueous acid aolution.
energ. 15 no.51423-4215 N 163, 1~,-12)

C I I CM tM, A T 5 0 0 2 4 9 3 0 OCY 6, 1/ 0. Pi S/ 0 1-1 0 0 77 0 0 4 5
y
r f rm cqj! e I p o f t h n tyl) F:1 5- n d U S, M - I
TITLE: "'r
_IA12 VVP mn!fuly t are&Ef-vA- rer0henlyn -m-lav Wog metht-b3
1.11? -00v- -h fAr
P! C1 TAGR., hcat U-bitn't-T. tKkifr'Aary
-nv-, P--;-,Ter th~- r-,nfl-o f)rf qVpUcatolltv ic-F tnn LrrLd eAectramcKiellIng
CIA Of tho i and Ufi~"'k ;, an A (-sll iiiii w,rno uf tilt) tn their
i,-rTiiitn L)~,j f(ir hi-A, trinilfpt ti,
-r,,M1,mF4 of tho
m
1TT1,'iCf)Vf~'iT)fMt Ulf TU~-t
ijq hWiticti for prograrnmelvi ctrntrol. bew.-Aary v -11 p r, ;-.Ut 4~.r i r rm p
-S

"Y40-65
v
ACCERSIQtl IM.- AT5002493
C)
-1d Gligim! t~~t put-orls, whIcA haa boon ouroonful
~'Itii r on isrthor wnrk. m ioia lijr I r itfcn snd rj r, ro-p znf~on C4 IIS4M
a r,,, ll ia a I "I f I g-u r ea forwu!as-
SUIP1,11TTTD. OSGOPS4 ENCL: 00 SUD CODr: DP, IMA
-0 Yt ~v Irov" 000 OIIIT,*P.: 000

L EXT (vp, ) /EPF ( c ) /F Pf R/EW P ( bPr-A/P5-1 I DIJ-41':4 LK
)M I(R,. AT40146216 SMM/1.3/000/00101/(M. 3/0016
A(jJ)10R1. lli~~.Jevt (Moncov) thinlayov, Yu. 4. (Koncov G-tintyAkova, M. P.
T I TLE: The solubility of tho Qqpvj_~tg salts of zIr-,onivti and hafnium In hydro-
f I U'Ir I c; ac I d
r,CiU1Ll',C: YkjblIeynay_,p kanferentalyn on fl2II--o-khImlchacknA-_u anal
1 0
S;b. otd. An I.SSA, !9_11, '43-911)
TOPIC T.14S: zirconium fluorlds, hafnium, fiuorlde, fluorozirconato, fluorohafnate,
zlrt,onhim .olubility, hafnium iolubility, zircorlum. WnIum scparation
A!ASTILACT; The authors determlred the solubility of n,- mnium and potassium fluoro-
zlrcunzw:,es In hydrofluorIc acid, 4nd establishc-d the coefficlen of separation of
Zlrconkrn and hafni". by n,-:tanr, of thz radirvictIve Indicator HfIhI. The results -.f
ji-~(~ In HF concentratlon. Pentaf ;joroi;rconates are r-cre soluble In i(F Thai he-xa-.
-ie rnvitistIq3tion shorwed -that the solubility of and pota3slum pentafluor-
m
Is s1ml lar. At th-, belinning, thi-, solabi Ilty of v--ynonlu; fluoreyzlre~onate
na-,,ts i;harp!y with 0 conLnntratlon, but ch-angas i Ittle at hif)h c-oncentrati"s
of IIF. Chp-mlr-ai analysis g_ive an u~rnplrlczl fo"nila of NU4ZrF and KZrF.. "20- In
thi ;a1uhl ! Ity of r1,2ZrF,-, itrAd' ly wItA an In-
04"Id 2 Z rFA

L 9974-1-0
ACC ~'SS I ON MR; A740WG216
flu~)~ozlrconates. The Coefficient of separation Is 1.49, which Indicates that tho'
soltAl I Ity of KHfF6 15 1.49 tim-t-, as high as tl~At of K ZrF,. it was also as-
T 0- 1!,, No-i t hat a-Rd hex"flueQo salts of zlrc
urina, C'nmvermlon nf the hmota- r onlum
lf,e k-,Ofmkj~m into tho retntmiWornsia ts- thi -o~afFlcivwt of %eppratlon of z]rCA:)n1t0,1
~-,A n I nr r eij . Or i J, 1 0 b -A I ' I JUI~eB And 3 f DfnU 1 01
j~~i I T r ED loseP63
F- N C: 0 C
SUB CODE: if
w) REF Sov, 002
OTHER; 001
Y 2

~X 5,7 ( in )/E !'F' c
t L
14,11 AM040592 LXXX EX FM 1-1 AT 1 (11
't kil" 4 -f~lay, S,~irve
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7
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l'Y'-' I i 1 11,1% AYA , I.!.; 'I ~-',K A. A.; N, '*r.,-'..' , .14. a'.
ReR~:tlon of 1P.rill;n. wltL r1irrilo.,
sol,itions. Izv. AN SSSR. S-~r.khlm. no.4044-7..6 001,5. (?'IRA 1815)
1. Instit-it neorgqricheakoy khImii Sibir*cgo otlelonijs AN 53S.R.

L8935-66 Ewr (a)/,EPF (n) -2/Ewp (J)/TAxP(t)/EWP(b) IJT>(c) J:)IWIJWIJGAm
ACC NR.- AP5027212 SOURCE CODE: UR/0078[65/0 10/011 t2577t2579
4'~5~0 1
AUTHOR: Nikolayev, N. S.; Buslayev. Yu. A.; Gustyakova, X P.
ORG: None lop
TITLIC.- The dtffer*nce in solubility Of WV";L flunrina M&1#A 'or zirconium. and
1- -.a,? i
hafnium 7
WARME. ~-trnal noorganicheakoy khimi'i, v. 10, no. 11, 1965, 2577-2579
TOPIC TAGS: fluorine compound, zirconium compound, W Mum compound,
solubility
ABSTRACT: Radioactive Hfl8l in the form of hafnium dioxide was dissolved in
hydronuoric acid (40%), the excess acid was evaporated off, and zirconium tetra-
fluoride trihydrate, ZrF4- 31-120, containing 0. 051% Hf02, was introduced into the
solution obtained. The zirconium tetranuoride was dissolved by heating, the
solution was slowly evaporated until ZrF4, 3H2O started to crystallize out, and
vras then placed in a desiccator under K011. The ZrF4. 31120 crystals were filter-
of the solldy~~se was then deter-
ed out. and dried in air. The specific activity.,-
'ireaffitiM tetr7fUjtM-Qe~ k WIM Wk-n-0-w-n spe-dafte ftetivit3r M00-
cmd 44tot

L, 8935--66,
ACC NR-. APS027212
1200 Impulsestmin-mg) wag the starting material, for the prepara-;
tion of the salts to be investigated. The experimentally found solubility of ammo-
nium and potassium nuorozirconates in hydronuoric acid at 20 C and values of
the separation coefficient a re shown in a table. The separation. coefficient re-
nects the ratio of the specific activity of W181 in the saturated solution to the
Initial specific activity. In the ammonium fluoride salts of zirconium and hafnium
a sequence can be established in the solubility of the zirconium and hafnium salts
an a function of their composition. The ratio of the solubilities increases on
passing from the heptafluorine salts to the pentafluorine salts, as follows:
(M)JW1 (N )#m. MHJUF&
W71 1.3 a IAL
(MU)SUFf (M)Arrf "HOUTO
An incrense in the coordination number in fluorine complexes of zirconium and
hafnium decreases somewhat the difference in the properties of these compounds
in solution. Orig. art. has: 2 tables
SUE CODE: IC/ SUBM DATE: 03May65/ ORIG REF: 001/ OTH REF: 001
Card2/2

4111KCILAYfIv?) 11054
"Yethods of ft-nalyp', of brines anti aalto' Ity ;*]*V. Forarilevsklit
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MKOIATEV, U.S., lnzh.
What a network diagma Is. Avt. dor. -'P no.V:10-12 D 'V *
(~~'A 19-.1)

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V - 7 - - -' - - - ,
'r ~. ...-1-. I ;
IXTYATTKH. G.G.; ZCYRIV, A.D.; MIKOLAYZV. R.1.
StuAy of carbon a~d oxygen tootope distribullou by the fractional
distlUation of the oxides of carbon, ustham and solocular oxygen.
Zhur.prlkl. khts. 31 no.3:368-375 Mr 158, Mu 11:4)
(CaLrbon--Isotopes) (Oxygea-loo tapes) (Distillation, Fractional)

L-2187
S!07 62/0 3 f/0 11/0 1 7,'C 21
Xolot;ir?in, V. ~.., andjikolaytv, It. 1.
Listribution of lithium isotopes In Immiscible solvents
Pz.%; ,L! CAL - Mvirnal fizichoskay knimil, v. no. 11, 1562, 2,4u-21'41
.I-
-YT: tt,iu= &.1ozi de wac ul -Tsolvad In aixtures of cater and organi c
the ~sotopo comp6sition *as *xa--ined b,~ ra.9
Gpectr1-:nFjtiy in both phna*a, and the a sepairation coefficient was
dettrizined. Rezal Ls: (1) :n acetono-water mixtures, j - 1.027 +
enund for the water-saturated LiCl solution. In more dilute gollions
c
iabout 1 N LICI In the fiqueous phaive), the iso.tope co=pos.'tion ra;r*airf_-d
Unchani.-ja. (2) 1n the 9jrtem sater-Ssoanyl alcohol. a was 1. 2 for
nsturated L!Cl colution, and 1.032 for 2 N LiCl solution. Li2 concon .trated
i:i ti.o aquuoua phaso. (5) in mixturea of diethyl ether and UK, dinRolved
'in concontrate(i nitric acid, and in mixtures of &myl acetate and LICI
disnolvrud in hydrochloric acid, there was no change in the isotope
co--position. (4) In a mixture of '07* aqueous solution of matnyl Enino und
Card 112

El') "A-,) 11"fil K I N , I M.: N I KU) I A M P 11 , A".
UlstrIbition of lithlim Isotopes in 'mm W-rle sollyent's.
ibur. fix. khIm. 36 no.Ils2540-2541 H162. (141pi l7ii)
v