SCIENTIFIC ABSTRACT NEFEDOV, V. D. - NEFEDOV, V. D.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001136410014-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: June 21, 2000
• Sequence Number: 14
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

KIBRIK, B.S.;~YXFEDOV, V.B.
Change In extex7ibl respiration following removal of a lobe of
the lung in tuberculosis patienta. Probl.tub. no.6:87-91 161.
(Mip,~ 14:9)
1. Iz khirurgicheskogo otdoloniya (znve - chlen-4,.orrespondent
AM SSSR Prof. 1.K. Bogush) InBtItuU tuberkuleza Aff, SSSR (dir. -
chlen-korrespordent AMP SSSR prof. N.A. Sbmelev).
(TUBERCUMSIS) (RESPIRATION) (MVIGS-SURGERY)

NEFEDOV, V.D., kalid.rud.nauk; ZHILIN, Yu.N.
Gas contant cf the arterial blood during pulmcnary surger-f cn
tuberouloals patients. Probl. tub. 42 no,3218-23 164.
(MIRA 1811)
1. Khirurgicheskaya klinika (zav. - deyetvitellnyy chlen AMN S.SSR -
prof. L.K.BoKush) TSentrallnogo instituta tuberku.Ieza (direktor -
deystvitelinyy chlen AWJ SSSR prof. N.A.Shmalev) Minis-erstza
zdravookhraneniva SSSR, Moskva.

SHLENSKIY, O.F.; NEFEDOV, V.D.; OSIFENKO, N.M.
Determination of the strength characteristics of plastics at
elevated temperatures. Plast.massy no.7:52-55 163. (MIRA 16:8)
(Plastics--Testing)

N~LFEDOVL V.D.; ROZMAN, I.M.1 RYUKHIN, Yu.A.-, MAKOVEYEV, Ye.A.
Isotope effects during the reaction (n, 2n) in antimony.
Radlokhiniia 5 no.5t643-646 163. OCRA 170)

NEFEDOV, V.D.; ZAYTSEV, V.M.; TOROPOVA, M.A.
Cheaical changes taken place during the processes of Td -decay.
Usp.khim. 32 no.11:1367-1396 N 163. (MIRA 17:3)
1. Leningradakiy gosudarstvannyy universitet imeni Zhdanoys.

197 = T, T.D.. Inshener.
- .
Water resources Is pavilions of Soviet Baltic States at the All-
Union Agricultural fthibitiam. Oldr. i sel. 6 no.6t22-29 AS 154,
MRA 7:9)
(Baltic States--water resources develevuent)(Vater resources
development-Baltic States) (Moscow--Agricultural exhibitions)
(Agricultural aftIbItim--fteasiv)

r -, T" I r ,,, . ", 1, -1 - I ,I ry, ~ I I \ i i ~ , ~ , , r
SMIRSOV. Aleksay Vladicirovich. kand.takhn.nank;
insh.; ORLOVA, V.P., red.; MUMMA, Z.P.. takha.red.; GMVICH.U.N..
tekhn.red.
(Reconstruction of drainage system) Pereustroistvo osusht tell rxvich
StatOU. ftflifffl. GCs.17d-vo sallkhos. lit-ry. 1957. 109 P.
(Drainage) (KULA 11:2)

99-3-5/7
SUBJECTe CSR/Wator Economy in Czechoslovakia
1UTHORi Nef*dov, V.D., Engineer and Rogino V.A., Candidate of Mechanical
-swma 0 _. -
TITLEs Water Economy in CSR (Vodnoys Khozyastys Chokboolovskii)
PERIODICALt Gidratekhnika i Moliaratmiya, 1957, Issue # 3, PP 39-51, (USSR).
ABSTRACTa In charge of all measure@ pertaining to the CSR water economy is
the Central Administration for Water Economy in PRAGUE, which
enjoys the status of a ministry. This ministry has 2 departments-
a. Department for water supply and sewerage and b. Department
for water ways and melioration. Attached to the Central Adminis-
tration or* the following inatitutest
1. The Scientific-Resoarch Institute at Prague, with branch
offices in Bra* and Bratislava.
2. The Central Office for the Development of 'Nat*r Resources
and Capital Investments.
5. The Hydre-Notoorological Institute.
4. The Planning lastituto "Gidroprojekt". with branch offices
in Brno, Blansko and Bratislava.
Card 1/3 5. The Planning Institute "Vadprojokt", with branch offices
. 0

99-3-5/7
TITLEt later Economy in CSR (Vodnoys Khozyastvo Ch*khoolovekii)
in Praguo, Brno and Bratislava.
The diversity of topographic, climatic and soil conditions of
the country call for rather different measures with regard
to reclamation, irrigation, flood and erosion control.
The mountainous region@ offer potential resources for the
development of water power, at present estimatooffor an output
of approx 3 million km.
62 % of the moliorated acreage is drained by means of uodorground
pipeline@, whereas open collecting ditches art seldom used.
In order to o,,ercome the regional shortage of drinking water,
underground drainage water to collected in open bovine, measur-
img approx 1,000 eq m.
Approx 40,000 hectare are under irrigation, of a total acreago
of 1.5 million hectare, which are suitable for irrigation.
Extensive work is being done at the regulation of mountain
streams, *specially at the MORELNICE and OSTRAVICE Rivers.
Besides stono spillways the banks were reinforced by the plant-
ing of willows.
Card 2/3

TITLEi Water Economy in CSR'Vodnoye Khozyastvo "hekhonlovskii
Grant attention is given to scientific researrh of water
resources. The institutes and laborstorlee are well equipped,
and operate numerous experimental statlons.
The article contains 10 figures and I tat-I@
ASSOCIATIONa Scientific Research Inatitite for Hydraulic Engineering at
Prague
PRFSENTED BYi
SUBMITTEDi
IVAILABLE: It the Library of Congress
Card 3/3

.0 ~ I ; t" ,)/ I I i -/ )
AUTHOR: Nefedov, V.D., Engineer and Lapidowskiy. K.M., Q9-9-9/9
E ing Fn ae -r .
TITLEt Conference on Problems of Drainage by Means of Underground
Drains" ~Soveshchaniye po voprosam osi.;steniva zemell a
primeneniyom zakrytogo drenazha)
PERIODICALt "Gidrotechnika I Mellorstsiya". 1957, Nr 9, PP 57-64. (US3R)
ABSTRACTi R.S. Kuchumov Deputy Minister of the Ministry of Agriculture
of the USSR (Ministerstwo sellskogo Khozysystva SSSR), opened
a conference in Riga In June 1957, which was attended by
representatives of the Baltic Republics, the RSFSR, the Ukrai-
nian SSR and the NSSR. Problems of melioration were discussed,
and lectures were held on different lrsina.,,# systems. Kuchumav
stressed the Importance of underground drainage systems, success-
fully applied to podzolic soils with abundant precipitation In
the Baltic republics for some time. The tanks to be accomplish-
ed now in tte field of melioration was to repair the existing
underground drainage systems, and to replace the mole-type and
open ditch-type drains by subsurface drains. Rationalizatior-
of planning and research work as well as higher efficiency an
Card 1/2 the installation of drainage systems is urgently needed becalies

99-9-9/9
Conference on Problems of Drainage by Means of Underground Drains".
300-350 melioration projects have to be carried out In the
Baltic republics every year. Satisfactory progress was report-
ed by the Latvian representative Berzins, who stated that the
drained acreage increased from 23 %, in 1914 to 45.8 ~~ in 1957.
As in Latvia, the installation of underground drainage systems
was started in 1956 on a largo scale in the Lithuamian SSR.
Slower progress was made In the Estonian SSR on account of Ftony
soils. Much has to be done in order to fully mechanize the
installation of drainage pipes, for only 2 out of 8 basic
operations are mechanized at present. The article contains
1 table.
ASSOCIATTONt Ministry of Agriculture of the US":.R (Mintaterstvo sel'skogo
khozyaystya MSR)
AVAILABLE: Library of Congress
Card 212

k1
AUTHORs Refedov, V.D., Engineer 99-58-5-11/12
PITLEj Melioration in England (Holioratoiya zemell v Anglii)
PER10DICALt Gidrotekhnika i keliorataiya, 1956, ft 3, pp 1,11-61 ~U~SR)
AB6ThACTs This is a detailed report of a visit by a group of Soviet
melioration workers of the Baltic republica to England to
study oubsurface drainage.
AVAILABLr,j Library of Congress
bard 1/1

99-58-4-3/7
AUTHORS: Bolotova, N.P.; Vinokur Ya.Ye.; Girshkan, S.A.; Koklyanor,A.F;
Kundzich. M.M.t Nefe!d~~ovV ~.; Off-engenden, 3.R.; Piohch-'kov,
R. S. '. Poslav BUY, V-.-7-., -Nia-ow., V. S.; Sharay, 9. A.;
Sbtarev, Ta. K.; Shubladze, K. K.
TITLEs Means of Raising the Technical Level and Lowering the Construc-
tion Coat of Irrigating and Veliorating Systems (i~uti povy8he-
niya tekhnicheakogo urovnya I snizheniya stolmosti Btroitell-
stva orositellnykh, osushitellriykh I obvodnitellnykh sietem)
P911IODICALt Gidrotekhnika I Velioratsiya, 1958, # 4, Pp 17-!9 (USSR1
ABSTRACT: A general review of past achievements and future tasis in
the field of irrigation and melioration is given. The main
deficienqies in the field are: insufficient mechanization of
construction work, a shortage of excavating machines and other
construction equipment, late deliveries of spare parts for
machines and a too wide dispe::aal of funds over a multitude of
enterprises. The main shortcaminge at the planning stage are:
insufficient use of as&" t4D cut dowin fil%xafinn -laAses of
water in the canals; insufficient utilization of sprinklingl
insufficient development of drainage systems, a careless level-
Card 1/3 libg of irrigated fields, thE- Most important factor In an

99-58--4-5/7
Means of a Raising the Technical Level and Lowering the Conatruction Cost
of Irrigating and Keliorating Systems
economical use of water. During the bth 5-year plan, the
drainage system in the 9outh-western parts of the Belorussian
SSR, in the Poleslye part of the Ukrainian SSR, and in other
parts of the USSR, is to be igeatly developed. Only 11,4
million hectares out of a to-tal of 200 million hectarn of
marshes or marshy Bolls were being drained at the beg:.nning
of 1957. More than 4 million of these undrained hectares
are used as natural meadows and pastures with low yie-da.
The article also recommends to replace the system of open
drainage ditches by subsurface drains.
During the 6th 5-year plan 81,1 million hectares will be
watered by new wells, reservoirs, artificial lakes and
spring water. Many sheep-breeding farms in Uzbekistan will
install electric pumps, until now Impossible due to t-ie
shortage of needed equipment. In 1957 production of ay-
draulic equipmefit lagged considerably behind requirements.
The article lists the various projects to be constructed in
various republics. The melioration works will cover an area
of 13 million heitares in the Belorussian and Ukrainian SSR~
Card 213 the acreage of arable land will be increased by 5,8 million

99-'8-4-.',/7
loans of a Raising the Technical Level and Lowering the Construction Cost
'of Irrigating and Meliorating Systems
hectares.
There are 8 photos and I table and 4 maps.
AVAILABLE& Library of Congress
Card 3/5

General plan for dIverat'led use and preservation of' water
resouross in the U.S.S.R. Gidr. I nal. 15 no.3:61-6j. Kr 163.
(NM 16:4)
1. Tessoyusayy gosudarstveanyy proyektno-is"katel',Ikiy i
nauchw-iseledovatel'sidy institut Kinisterstra sellskogo
khosyaystva SSSR.
Water resource development)
ter conservation)
t

IIEFFDOV, V.P.; TOROPOVA, M.A..; KRllhVHA'lS?(AYA, 1,V.; I-,.V.
Separation rf pteny. ierlvstllvs~s of arsenIr and german'--im ry
means of partition paper chronintography. Hadio~himlla h
no. 1:112-113 164. "MIRA 1":V),

NFFFVOVI V.D.; VOBSIMFY, 14.j SINOTOVA, Ya.N.; BOR41k. 7.
Tsomeric sjfff-,rtfl ~ irling the --docAy of Rag tn '.hr -, r-- ,
derivativea of blamut.h. Rad(khLml ta 7 IIL,~.
' M ~ rtA 18 , 7, -J)

. ", V r ~ A . I p
N F, F ili N V .~-. , V, , , ; I F ,y I
- . I - p ~B . , .
/In t-,108, q ~f -- xy , : . 1- ~ ~ ...,k t%all .1 7 f , - F . _j'J R, I. .- I I I ..
_ien3y of Rji -: In 0;,.- , d ' ': r'!,- , I " - ~ 7 r 5 - ' ' jk " * -
u(I"WhIM11A - rif It'., ~ v , , !. ~A I -,),
a

L W(MMMM, DIAM/lip(a) 41D
ACC XR: APG~0%500_ SOURCE WDE: UR/0186/65/007/005/0629/0630
AUTHOR: Myring A. N." V-A D.; Kirin, I. $.j? L!T!V, V. V.; Zayts*v, V. K.;
ORO: am*
.TITLE: Forimation of fluorive-containing compounds of durl radiation of
1131 contained In Iodine pentafluoride
,SOURCE: WL*khIniY0, v. 7, no. 5, 1965, 629-61110
TOPIC TAGS: xenon, fluorine, beta radiation, iodine, elemental halogen , fluorine
compound, radioisotope
'ABSTRACT: Free XmI31 was accumulated by bubbli-ag helium for 8 hours at tem-
persture through a liquid J131FS. The origin of this five X*131 Is traced to the
intermediate forsation of a molecular ion EMIJIFSI'r. After rvwv--l of free X*131,
Ithe 0-rediation material va hydrolyzed and the products of hydrolysis wera subject-
4d to reduction with various reducing agents. In the course of treatment with HCl
.the zonono-fluorime (aqwunds were reduced to free xenon. No free xenon was obtain-
ad then AU, hydronyLemiset or FG2* were used av reducing agents. It me found that
UDC: 946.29S116 : S41.28 : S46.LSS#161
Cad 1/2

L ~ 17372~"
Ace Ut M000081
~the X410001-fluorlas compounds am more volatile than the starting j131FS.
ff"tcrOs notes J is the Russian periodic spbol, for iodin*~7
:Sun C009t 07/ 64SN DATE: 290*04/ ORIG REF: 003 OTH REF: 003
Card 2/2 mat

L 17371-" xWeVnp(t) DIA&PAJW(d) JD
ACC MR: APGN49,09 SCURCE CODE: OR/0166/65/007/006/0631/0632
AUrdORs ftks 44 N -0 .9 Ketedow V. 0. Kirin. 1. So; QrWA9vq So A.; Gusevo Yuo Ko;,
ORG:
~TITLEs rormation of 01 mm compounds during 1=radla%jon of 1133 Incorporat-
ad In potassium parlodi"
SOURCE% Redl4himiya, v. 7, no. 5, 1965,, 631-632
TOPIC TAGS: xtmon. oulde formation, bets radiation, Iodine. radioisotope
ABSTRACT: XeDn coddes (XeO4 and XEO3) w1um prepared by 0-radiation of potassium
periodide containing radioactive J133 Isatqw according to the following *chase:
INXG
11=X*()Or *Iuxgos
'**WX-04
The pmparatIcn priocedure was as follows s helium gas was bubbled for 30 minutes at
UDC: S41.26 : 546.22S
Cs" V2

L i?3n-"
ACC Xxt ANO134509
a rate of 26 101/01LD through & Solution Of NJ' 3304 and KJ'33 In 0.002 normal HZS04
to remove free vanon. The elemental Iodine was removed from the gas stream by pan-
aleg bellum -through a KOH-absorber. The xenon oxides were trapped on AG-S activat-
ad carbou at liquid nitrogen temperature- The quantity of trapped xonon-133 was
-wasured usLig sm AX-100-1 analyzer. It use found that X*04 Is unstable In acidic
medis, m4 to XE03- RAitor's not*t J is the Russian periodic symbol
for iodlflel- &.;--
SUB CODE: OV SUIN DATE: OWan65,f ORIG IMF: 002/ OTH REF: 005
-,Cad 2/2, mist- -

N-47MOV, V. r.,j 0111N, A. N., KLOKMAIN, V. R. and KlUrra, v. ~,,.
n3oviet 3cientists on Achievownt of Lquilibrium In Distributim of A MicrocomFonent
,etween 3olidl Cry3talline Isomorphous FkAse and Melted Salt", Izvestiy-a Akademil Nauk
SSSR, Otdelind',% Khimecheskikh, Nauk, No. 2, 1950.
A Digest W-12970, 22 Aug 1950

v..4 'V_.,
Ay:
gZ
Vg
of
~iN
RT s
DOP
ML NVOIA
1XIM
P,
"scildom Cok be
le dc "Outive coma.,
Armw by 04, ism
bit mlow fogy
gy iN

.'in
4 f,
Wd bra *W11
= aiia r
pp! A!.=A;ZflW 66W
7 i.; emu 't 16 w" so,
F~u
-dm& bf
lb
TM:
FO r R
51 . . . . . . .
aw 'do
ado
0064
it!

AID P - 31&7
Subject MM/Chemistry
Card 1/1 Pub. 119 - 2/8
Authors t Murin, A. N., V. D. Nefedov, and 1. A. Yutlandov (Leningrad)
Title Preparation and separation of radioisotopes without carriers
Periodical t Uep. khiti.p 24, 5, 527-5749 1955
Abstract : The cyclotron and uranium reactor serve as sources for the production
of radioisotopes without carriers. The cyclotron reactions are
discussed In great detail, and various methods of separating the
following radioactive elements are givent To T C, F, Ne, Vq, F,
3, Ar, Cap So, V, Or, No, Fe, Cop Cup Zn,, Ga, a Ago So, Br, 9r,
Sr, Y, Zr, No, To, Ru, Rho Pd, Ago Cd, In, Sn, Sb, I, Up Cap Tap
W, Os, Er, Pt, Au, TI, Fb, BI and At. Four drawings, 3 tables,
128 references, 7 Russian (1930-1954).
Institution i gone
Submitted : So date

.7
-- wi-
*m
C llvismieyawr#: A. To
Wesel
Welt,
tP-7. Isotopes,"'
tooki Mtl4di,*V*Kv*tAtA ;;f Radioantive
(State lixbli~AtiOn of. Chev&cal Uierature) in
ig
Er
mo.
t ,~t

/f/0 ~F-e C-16 V
UM/Organic Chemistry - Theoretiea~ and General Ctuesticns S-I
on Crpnic Chemistry
Abs Jour
Author
Title
Orig Nb
Abstract
Card 1/2
Referat Zhur - Khimiya, No 2, 1957, 4234
_jWedovj Yar, p Tnropova) M.A., Skul'skiy, I.A.
Use of C14--ra the Study of the Mechanism of Catalytic
Forantion of Asymetrical Ketones
Zh. fiz. khimii, 1955, 29, No 12, 2236-2243
Investigation of the reaction of catalytic formation of
ketones over ThO 2 at 430-45COO from mixtures of the fol-
low',ng composition: k) phanyl acetic acid (C14) + ace-
tic acid; B) acetic acid (C14) + pbenyl acetic acid;
C) 'Denzoic acid (C14),* acetic acid; D) isobutyric
acil 4- acetic adid (C14); E) valeric adLd '41acetic acid
(C 4); F) capronic acid +-acetic acid (C14). Activity
a of the ketones thus formed was determined directly in
Ehe liquid by means of a special attachment to the end-
window counter. Per cent a of ketones obtained from
- 17 -

STARIZ. I.Yee; PATMI. A.P. (deceased]; GROSHKOV. G.T.. KIRIN. A.M.;
STARIK, A.$.; GRMNSMSIKOVA, V.I.: KLOKNAM. V.?.; IMMOV,.T.D.;
LUX"YE, B.G.; ISHIZA. V.A.; SKIRNOW, L.A.: Y]WINOTA. TO.I.;
TORMVA. N.A..; SINOWTAK. Z.N.,. FUNKLIKH. H.S.; SOMMUMA. Te.y..
redaktor; YODOIAGINA. 9.D.. takhnicheakiy redaktor
[A collection of practical studies In radio c-homistry) Sbornik
prakticheskikh rabot po rsdiokhimil. Claningrad] 1956. 210 p.
(MLRA 10:1)
1. Leningrad. Universitet.
(Rad ioa hem is t ry)

USSR / Isotopes. 8-7
,,.ba Jour iRef Zhur - Khimlya, No 8, 1957, 26039
Author :V,D* Nefe dov; Yo,N. Sinotovn, V.I. Kntsapov
Title iEnr Icent, of Fadioactlvc Isotopes of M(xcury
Grig Pub IZh. fiz. khimiis 1956, 30, rio 89 1867 - 1870
Abstract The enrichment method of iscmers H9 197m2 (I) and Hg197 (11)
prepared by the reaction (n, t) was devoloped. (C '15)21ig
(III) free of traces of Rr was purified by a repet4d dis-
tillntion in wicuum and irradipted 5 hours by thermnl neu-
trons; first I ml o.-' saturt-ted 'ImMh (IV) soluLion in a-
cotono (V) nmds after thnt) the solution of 0.1 g of
Haft0h (VI) in 4 ml of V wore riddcd to 125 g of the Irrn-
diated III; the e-xcess of VI wen raduced by adding the
saturated solution of IV in V; the precipitate Of Mr,02
adoorbcd I -nd II liberated from III in ccnsequenco of the
recoil at the cmission 1: -qunnta of capture; the contcnts
Card 1/2

ill F7~~
PT
M
Ell OM_N~_t
V1
ti
.05
6t 11424144
If
f It*
a,~, 4 0 -
RVIV
Out
rorma d
WOW
'i~l ilk
-All
30
i
lit:
e4v ~'fl

Ull 0,
Saw
5 0m
51,

A'JI,
am iner.,
I knAxt -~ft
"s bar.
IMP ~
is MIUCOi- (19) C4H411
ilk
TI
sk (100,
callk =--1c
Horn
*s a
W, veifttdon of bwope
6 &a. Cij.HgBr wem now
that the
"I lnmctto4 ray 11OW-, sad tU am fmcoom&w Ix)&k. i
(D) w4s.ohtainca
4 15 WW 14 hm crygn,, 7'ba vilafl;
02
Y7
6"iz
:jz

A'TFeD6 V j L ".b
SUBJECT USSR / FFYSICS CARD 1 / 2 PA - 1797
AUTHOR MURIN,A.U., r-EFEDOV,V.D., BAMIOVSKIJ,V.I., POPOV,D.K.
TITLE The Enrichment r-IE-e-Mootopes of Iodide, Germanium, Arsenic and
Antimony obtained after the Reaction (~ , n).
r
PERIODICAL Dokl.Akad ff~ukt 111,fasc*4, 606
-807 (1 56)
Issued: ; 1957
The here described experiments were carried out with the synchrotron of the
Physical Institute of the Academy of Science in the USSR. The cross sections of
the reaction (jr, n) are usually small. Thus, the maximum cross neotion of the
reaction Sb"3(,r,n) Sb"'(1F f - 14,0 MeV) is only 0,363- 10-24 CM2 with an inte-
gral cross sootion of the order 2 M*V.barn, and for the reaction
Aa75( n) Am74 it is - 0,8 MeV.barn, and for the reaction J127(jl,n)jl26 it is
- 2 IeV.barn. Thus the produotion of preparations with high specific activity
requires working out suitable varieties of the SZILARD-CHAZAMRS method. Works
dealing with this field are very few and are cited in this connection.
Apart from preparative interest the radloohemical study of the reaction (,r,n)
can be essential for tae study of the chemistry of hot atoms within the range or
high energies, for the anergy liberated on the occasion of the reaction (pn)
exceeds the energy conveyed on the occasion of the reaction (n,r ) by three or
more orders.
For purposes of enrichuent the authors in most cases used element-organic com-
pounds which had formerly been used with success for the enrichment of radio-

MW=T, V,D.: SIXOTOVs- TA. N.
Isotopte ess-hr-w nf vorlpherte atons in tho hnwrlog--.s series
6f saltIlIt'D alln~,Atjr- derivWv"s of werpum Pmr. reorr. khts.
2 W.50.162-11(l Kv 157. (MLRA In-P)
(Cho-t,ial bonds) (Mercury -rraii(- em-rouAs)

I
'rn ::;~ IN, A N , N.:~_ -LCV, V. L, , POPOV, D 7 BAU:103KIYJ
T i'7 L II ~_n tYlo Succes3lve !TruttOn Capture in Antinoriy
po7j] t1 'nom ney,ronnon zakhvate v Bur'L3e-Rjsf,!8,-.)

I'A_
1.~ ni,a
l a Vol 2, Nr 6, pp
1957,
T of tho irradii,tion of a nuf! iciently Inter.Bive
r lux a twof~ Id r.-atro.i capture a:c-or(4in7 to ~i #- F~ -me
124 -, ri 12' ) f 1,
Sb Sb 7 *f ears
(T-6o Days)
kii I Py meani, of the 3-decay Sb125 qoes ovs~,r into To'2_)m
nrd thii ia the highest icomt-r1c 3tAte or the stable
P'r m ~ - sa-,q.1 r-9 of the an-. imon~r irradiat ed by Y,. e u t ro n6 I e
f, ~c-jf ~ne year (for the -ur,~oso.- of a 3-f"- - t a -
;-i,lat i,)n Tt~'21,m .n Fint'.iony) the aath~jrs -ieparatrd the TC-123m
3t,ble Te he:-e nerved as a (.arrier. Tne metallic tellurl,.,m was se
zr ter
- ,
frcm the atit .:ziony by redu3tion vith tin-dichlorldol. An Im-
of the Tel2rm was observed in the separated tel-
1~~ i Jer, t i f ied after the half value period ( 51+4 dayn
a _.-rul ~itjori ir, the ant iracrij and from the curve of thc-
n(I.' the con ersion electrons in aluminum This curve,
'rl. W-Ay ~e_-Ees %-th thoi3e given by 3 Friedlander 14 Galdtiatf-r
-.Li - '- Hev
a, 981 ~1948) This the existe~r.,~:e c'
e .
v ~- ii, dci~le) ;apturm which devel,)ps accordine to th,~
i0vot ner,~,raay be- a3gamed as an established fact.
t9 "'ail- to evaluate the cro8s section of the activation :f

1 v e N~a t ro ri Ca. t a re i r. A n ' imonj
by ro~iotor-nc.~r-.ni, By mea na c f t he m et h c, d ~ f e i-
~l r.,_,- f, Ulp iimb ors of the :tcts of 11,cay of Stj 24 and t
Df !-!,~a~- ,)f t- e Te'2r~'
- -) m - n,
-A,- z radiat,,on wai; meas~rej 7,h,,! -icl.ivriti,,n croq.,~
-t-rn-utei fror,.i tlio-se (a'~a ir f thp
p Z~
-)f ~h,,.-, ~ncrt rt-~ori
v 0!7~
,A lj'-
ri of

USSR/PhYsical Chemistry Radiochemistry, Isotopes.
Abs Jour: Referat. Zhurmal Khlynjys, No 2.9 1958, 3735-
Author V.D. Nefedov, m.A. Toropova.
Inst C -
Title Production of Carrier-Free Re'88 by Method Based on breakage
of Clienical Bonds at (3 -Dissociation.
Orig Pub: Zh- neorgan. Wail, 1957, 2, No 7, 197-1671.
Abstract: A rayid method of .7f
Wns carrier-free Be' using W(co),,
(I) yas develWed. Ple" generates at the (3-dissociation of
WOO forming at a successive capture of two neutrons by a WJ"'
nuclitus* WC1 was obtained from W03 (irradiated with slaw
neutrons), :Aer which I was obtained and purified of inorgan-
ic At forms by distillation with steam and sublimation in vacuo.
500 mg of I was dissolved in 10 mlit of chloroform and the so-
lution was aged in order to accunilate Rel"'. It was extrac-
ted -with 10 mlit of distilled water, the aqueous layer was
Ca-rd 1/2 -4-
B__

'Ii C- F c- t> 0 -./) V 0
AUTHORS t Marin, A. N.; Nefedov, V. D.; Baranovskiy; and Popov, D. K.
( Leningrad)
MIZ i Chemical Effects of the Gamma
, n Reaction (Khimisheskiye effek-ty
.
reaktail)
PERIODICALLi Uspekhl Khimli, 1957, Vol. 26, i4o. 2,, pp. 164-175
ABSTRACT: During the exposure of various elements by hiCh energy gamff&-rays
an Interaction occurs between the nuclei of the atoms of these
elements and the eam-R-quanta, accompanied by the emission of one
or several rriclear particles. Such reactions are termed pho~ruc~ear
-
a
and have very small cross sections (of the order 0.1-0.001
The gammal, n reaction Is the best studied and generally has the
largest section compared to a]-1 other photonuclear reactions,
Radioactive isotopes with a shortage of neutrow form from this
reaction, disintegrating for 1~be most part by way of P !
disintegration or K-capture; inany of these isotopes may be
VL. used as ract-oactive indicators. Study of photonuclear reactions
began in thi) mid-1930s, and the intensive and thorough investigation
of photodisLntegration is now being conducted.
Card 115

Chemical Effects of the Gamma, n Reaction
A great stop ahead was the application (in studies on the photonuclear
reactionB) of gamma emission originating during the impingament of
Li and B protons according to the reactions:
L' (p, Y Be8P
B11 (p, y Cl'.
The invention of electron accelerators (betratrons, synchrotrons)
made Rosoible the derivation of gamna emission of any energy up
to 107 eV. More than 100 radioactive isotopes have been obtained
from the gzava , n reaction but only 12 studies have been published
since 1950 on the chemical effects associated with photonuclear
reactions.
The author next presents general data on photonuclear reactions,
introducirLC the concept that Ethr,sh (Eno ) (Threshhold of
photonucloar reaction) in order to separNe the neutron fro, tM
nucleus nuBt be somewhat gTeater than Qn (the bond energy of the
neutroni. He develops an equation for the energy of edssion of
the atom (EM) in which M - atomic mass., ZY . energy of the gamma
quantum, m - neutron mass, Q - energy of nuclear reaction, c - speed
Card 215

Chemical Effects of the Camma, n Reaction
germanitrn,, iodine,, antimony and arsenic. Table 3 shows (based
partly on data from a stixty of R. B. Duffield and A. Calvin C?6,7
the holding for the gamma, n reaction and the n,, gamma reaction in
in which such irradiating preparations as crystals of salicylaldehyde-
ortho-pherWlene diimine and a solution of saw in pyridine are applied.
It follows from Table 3 that, depending on irradiation conditions,
a considerable part of radioactive atoms Is hold In the form of the
original compound. F. S. Rowland and W. E. Libby (81) studied the
distribation of radioactive carbon originating from a reaction of
C12 (y, n) C11 between CO and C02 during Irradiation of liquid and
solid carbon dioxide, solid HaHC03 and water solutions Of N&HC03
and Xa2C03,
Results of their tests are shown in Table 4 which shows that the
irradiation of solid samples leads to the condition that C11 is
evenly distributed between carbon monoxide and carbon dioxide.
Fioweveir, the Rowland-Libby results do not agree with those of
Z. J. Sharman and K. J. McCaUum (82) which are shown in Table 5
based on their study of the radiocarbon distribution obtained in the
irradiation by gamm-raya of sodium carbonated W. J. Edwards and
K. J. McCaUum (83) studied the chemical composition of CU originating
with the irradiation of sodium bicarbonate and calcium bicarbonate by
gamm-raya with a maximum energy equivalent to 23 MWV. The samples were
Irradiated for about 10 rtinutes under an intensity of gamma rays in the
range! of 10OOoZOOO roontgenB/minute; results are portrayed in Table 6.
card V 5

Chemical Effects of the Gamma, n Reaction
of Light, and 0 - the arq',le between the trajectories of the emitted
neutron. and the imident photon. The energy of nuclei of emission
obtained in a gamma, n reaction is great and exceeds by far the energy
of cherdcal bond of the atom in a molecule of any compound. The
interaction of heavy high energy particles with surrounding media
(solution, crystals) and the concomitant chemical changes are of
great practical and scientific interest. The few studies made on
this subject can be classified under two groups: 1. studies on
enrichnent of radioactive isotopes and 2. studies on the cbemical
state (of atom) originating from the gamcm, n reaction. (The
author gives much detail under these groups; see explanation of
tablev 2-6 below., and contributions of personalities).
Table 1 presents threshholds of reaction for various nuclei and has
9 col== giving such information as atomic mass and number,, product
of reaction, half-life period. Ethresh etc- Table 2 lists elements
with their corresponding compounds, reactions, mathoda of enrichments
output in %, and enriclunent factors. The elements listed are
Card 315

Chemical Effects of the Gamma, n Reaction
Figs. 19 20 and 3 respectively present the following: 1. section of the
gamma, n reaction as a function of the energy of the gamm-quanta.
2. dependence of the output P30 (R) and run of the nuclei of emission
(p) upon the maximum energy of retarded radiation. 3. effect of.10
minute heating at various temperatures upon C11 distribution: (1)
carbonate; (2) oxalate, glycolate, and glyoxylate.
The investigations surveyed in this paper exhaust the studies to
date in the field of the chemical changes which accompany photoneutron
reactions. There are 83 references, 10 of which am Slavic.
ASSOCUTION: Irradiation of preparations was conducted in a synchrotron of the
ftsical Institute imani Lebedev of the Acaderg 2f Sciences of the USSR
PREMTED BI:
STJBKLTTEDi
AVADABLZ t
Card 5/5

7, 7. --j.
;i3x-7-4
A
3n -q,.
RA _t,
at*'Sola. Of ftul?h#Cl
61 l1w by
*I&Yer.,IUpnfl&
Qjthe WjLt.
Via I e0 With
ti= COW by b9ft9i A
TM.-amlyob i#dLkated 1 .7%-l
L 7: _71
rX

pe
IRI
.. . . ...
I im D embum the C=
dratf*
19V
ur,
M. ortm
Stu" of
-DI . q
-d T I tmd bir cadicoctIve dWnt
,don of Ra
NO
-kD)PN (Its D -,Li Pb*-. R&H tai
-and (it
AIR
0 - state of Ow daughterlArm "as
N
'v' HY Uide
a pfm4 On ths; focin of t1w parent elenum
the d ateva-Um ofKUtim. Tho 0-&tntetmdb*
F lie DI* ax~jcoent Pf tritw-org. cmPh, cm be used for A.t
Pbs cempds. of high spftwc Iw--*iTIty, MA W,
vp
M4~~(mvcWcct,pmjm. kc Fb* derlyatlyes *4
out
T,
Ev
t
YPP
q-0

-U
Our VIA
42
Ll
Mz
re Pbt)
lis
C4 VIM
M.- oyfa- jy_ 't, ifith iu, t,
fill! j.
rot
.... .........
P, Nill tij~~
Ltj
1V
"N
di,

AUTHORS: Refedov, V D
TITLE: Use of CartoL.Y19 f,~r tn,i IstlFiti-i, f Y1
~ I V9 - "4m 1 tj d V
Cr , MCI T e, tin I Re 1 9 L,0 IZ, i rl 19
Mrticini I v ilya Yydeleniyh radlolzctopov Cr
9)m
To i He
11 99 1 b 7
COIACeDtration f Cr , Mo and N
~1 99 187,
(Kontguntr1rovanlye Cr , Mo I N
PERIODICAL: Zaurnal Neorganicrieskoy KhImil. Vol k, Nr
pp. 17'-180 (USSR)
A.BSTRACT: When stable nuclei are iLrrad, ated by th,-= ~! ro~-itr,rAs tne
latter are capturei by the nuclei of stable isotGjeo The
rtaction (n,j-) takes the greatest part In th1d prc,--,-~ss 'he
radioactive isotopes originating in this prc--#~qs :,a-ie
a ne-utron eXCeS3 anti generally d-compose in sunaeq,-iPnr-- of
0-irradiation. Since the capture crosa-section for thl.'3
reaction ~,enera',Iy is oufficiently larCe it t:,re~t -,,.,irtity rf
Card 1/4 extremely valuablo% radioartivot preparati,)n3 Clis jr:iUCP1

Use of Carbonyls for Isolation of trie Radiolsetopes
51 99 187
Cr , MO , W Tc in (I R e
Concentration )f Cr Mc. ~Lnd
bj mears of trie heforiminti,,ned rtactiGn,-i i~ j L
characteriEtic,; of the i3otopes formed at t..13 Kial
tr&nsfcrmation ind of the inactive atoms of ti.-~ t,r.qt ar-t-
almoa t the same, '.riei r 8 01 P d r a t 10 rl 1 6 C 0 n 11 e -- t - 1N - t 1.11 f f I - Ui t I eS
In the author's opinion hexacarbonils of Cr Y j ;in I b nr~ tt.e
most sultaDle- compounin being used for tne enr1r,ment ')f
radioactive ia~~,topes VirtualLy they are tn4~- n 1j , t e Ei 1,
crystallinic cc,mpounjs of these e 'ements in wt~iih tne 4,eL,,A
is bound to the remaining part of tne molecu~'t b~ 'A .-V'~-nt
bond. Furthermore, hexacirboayls are ea3./ t- 7),~ , - ; . f i M , ili i
are rather resi sl ant againat i rradirAti. or, S i n oo ci " i '
carbouyls are solubl,,~ in water and in organic slvertq, tneir
appl i -~abi I Ity for Pxtract ion of tnf- anovement.1 ~xied i ~ictci'eFi
was prequpposed. The ;arhonyli were shortij jrrlL'11#,t'x-J w I t h
1. 1 h7
neutrons Thereby the radioisotope Cr . md'~ and 11 kafter
i,jotopes Cr"r) and 'le jutul~i
decay of the O.ort .1ved Cr
of the curbonjls wokr,! dlH.9olved in chlor-,fcrm ,r.1 tNO I S , t e 9
Card 2/4 were oxt7a,~ted bi water Tah Ie I stown t hlE'. cur, _.I~t r''it ! oil

Use of Cart-~Fk,
Cr5l, Y,09,
Concentration -f C,
D
e r ea a
t
t h n t r,v P rt oil The c n,,- n L", r
On t!,- V. I Ij t )W'Ills -in I n e I f u I t C r
T r. e ex, laina i tne. iif: et,t
St -~l li tj of t 1. 1 Ii, ay I a on t kle C 1. 1 1 t t n r
e d f Q r t r.
at
A 1 34; 1 LLJ C p 9 6 ~60 6 te
c~- io n t r L, t io r, j f L-q ~j j o I g o t 0 p a j3 ir h I c ~; frm of
ko')') - ~inl N I sutopea, As Ini it al ; rej u., ~t' 1
lattt.r 3orrc3, 3i,aing carbonylf) with ri sunteat f tr.e lsotoas
trod ginthetl 7ed from * ne r-313~0~-,tlVe Olydei
with h1g.1-1 f i -, it 0 t I v I t y , I n t r. e d ~ : D= f, s ~ t i ~, ;. % ,I I r. .,
To'j9m &nd Rel~O f jrr., too. From cryqt,-o r L o n~j
In jUe9tl(lll Qr 'r(;Cl 01.10rOfOrM 301Lti~'V$3 '11-1. inOtDretl
Card 5/4 were extra:tel ry QehLa of water. It waa i ,%,t from their

Use of Carb ~)ny 1 n
C.r M09 9, IV 7 T
Cori ce n t ra t I n 21 -1
t. , ',, , t ~.n t t r.
11 u L t rtz~ i w -re r a
r I fn 1 1. 11 t 'itI :, fl r )r m o f r" 1 1 v
r- t, f c r:., 13 1 ~ t 1 11
11 e r a ~11 1 7, ~ i t v
u'1 ext r q te i wt F~ r lie u rLv '. o t h k- I u I t
IIf t - - !. , ~ t..i :r . , -t I 3o t e fi.,; wu m e i r.
Af ter ~i w;Lt-r -Y~ tr,~.-t ic n Re'" , , I
tex,i c i r. r i i n , r t~m is i u a i n ii i i- , -M t t f,
r i ( n3 r, c z f ci rm :3 D i t I n ;j r r t
e :7 ti i i -i Re I A a. -M
n t t- ri ~.i -n t, m. r o f t r Pin ~q f ~ rm a t I
i , r-a e , anl 1,1
q r v i
SU BMI T 7E D: L' 3 .
AVAILABLE: Li b I
Card 4/4

AUTHORS: Mui*in, A. N., N onfe d c v, V. D. ,
Larionov, 0. V.
TITLE: The Separation of the Nuclear ls-.zern c,'
Mercury and Tin ~Razdf.- '.,i-niye lerriykh i z )=,~r-v te.
rtuti I o1ovF1"
PERIODICAL: Zhurnal
pp. 151-167 USSR)
ABSTRACT: After s_~ivine a review of the ie~aration t
nuclear i~iomers of te,lurium r,)feipn,~e7, t;, if t 0 r
t he I r 1 i ,irunsl on t he n . thors ho'ge -1 1 rie'. t 1~., I I r-, r 't- f
tel lu ri L~ m it s t t~e I n I t I it 1 c om poun J fj r t h - ,; , , , e r, t )I a
nuclear i3omers of T127. it must b, i
tion to ki-n intermetiate level will oc,~,~r me ~i, i an in-
t e r -i a I nonvernion and for trii,3 reason vri -! ~, -: -,)m 'j n i ~ I
by ;i di sturtance of the cnemi~~al bi ndi ri, C f te."_r"Um n Ire
initial compound, Therefore kt cousi lerat ~,, r 1. 1 ri f tt.e
nuc I ei of TeI27 will be pre3ent ~,q mo3t .9impl- in r
foi-ma i n the ground state In the prejarat~on J. T, e ' hj' 1 -
Card 1/,l dinitrite of tellurlum. 7e127 in it.9 , r,,,,ni w,tl 1~iolntel

The Separ tion of the Nuclear 13,Dmers
r cu r- -jd Tin
bv means of the adsorption c f these tilic r,-GI r-mH t.Y
ferric hydroxide. Trie extr,L(,tion with t I. o- r- f rc rn
9 n HC1 wris intented for the remcvfil of trio, in 3-'tr.--~ 1 -
carri era , that i a to say, iron. From t.,,e ;e-aj irve f tre
ow e!j t i B o I a t e d i a om e r ' f I # u r e f o' ,I ~:~ w.9 , t 1,,i t ~ n I y ~D i. e
-.ellurium 13otope was exis*.ent, Phi cn nal a nalf l ife of
313 hours. This testified to the presence of niy tne loweBt
1 ~- w
isomer in the prepar%tion. The yield of Te I as ietermined
to M/6, if it waa accumulated in crystals, anl to '~4' if it
was accumulated in a solution. The latter value 19 in 6ood
corres.pondence with the known fact, that ti.!--
transition in TeI27 is converted to practically '00% This
implies, that the Initial molecule ii lestroyed t~ overt
pr)cess of i someric t r Firi q 1 t ion , w t. ic n i s ri - :: cm p , n i - ty
an internal' convernion. "'he yield Iti oome"~int !:)wer. if
accumulation takme place in crystaig. The incintad radio-
active T~127 predominantly takes itg four-valent form and
only 6 % of it take the six-valent une. "hi~) me~nQd ~ossesqes
several advantflge!3 in compaxison t o trie &nes Kr~cwn ni therto
C a-r d 2 (reference 1 ). If mercury is irra..liatel witti rie,troi~3 ac--,)rdinF

The Separation of the Nuclear Isomer,,3 of
Mercury and rin
to the reactions /nj) and,'no, 2n), ralloa,:t1-: lqctjkf~s
197, 1 9 19 9, 2 5 rr
are formed: Hg 9 and Rg2- , Br-quse at ionat
six days elapoed until the separfition van jprf~rmed It can
be assumed, that in the s~nthpsized ir,it.1,tl'jr~qi,rfitIon -
mercury diethyl only Hg2o- , jjC197, 4nd Rt-,' ' r,(--z- ~renf~r-t
From the Invent1gationj of the Laboratory fcr
of the Unlver!)ity LeninErad (reference '-~, it rt-sultq, that
the complete aliphatic mercury derlvatlvas may ur,~crgo an
irreversible destruction of tl-~e ch,:~mical 1~cGdinpi3 on
isomeric trans*.tions , The igolation cf in tt.p t r~,unl
level was performed by means of ad9orption zn mant:anese
dioxide. The separation from the carrier can te a--rieved
by methods, which are tase-1 cn the voiatilit) of mercury
and its d-~rlvatives . "!ie oep4ration of tr,, r,---.Lear
as such can te determ, nc-d from i ~:,mj a r 1 2 n f L. r v ~'-.q
of decr,?qs;nv a-tivit-1 of tr-- m. r:~-ary ons
(figure 2) Wnen tin 1 3 1 r rar I I t ed '~~ - , * ':- 1A 3
radioactive nuclei ar-~ formed: Snll~ I - i i I -~ f- Sn
and Sn'19m by dpcay). From the thre,~ lFitter ~n~.-3 -;,.a~~e
isotopes are produced by an trar-,~jm,,;tator : Sn' 17 ind
Cfird '//4 Sn119, Sn121, Sn12~ ,,d SnI2'. were 13-,Iat"i 41r4 the ;r)und

The Separation of the Nuclear of Telllur-.um,
Mercury and TIn
state from a benzene solution of 3tann.,- *~.tra~n-nyl by way
of extraction. BE-cause of the fact, that tr,(, is-mers Sn'2'
and Snl2r), have no , enctic Inter-relation Sr.','- r-1 Ir,".Zm
will pass over into th(! w~Lter layer Juring tn- xtr,,tion.
For this reason the actlvlty mpasuroment w,i-~ glart-1 iftur tre
lapse of from 10-ILO half li!e perij,J5 cf Ir.1-ID 'T - .0'
minutes) The decay curve of Sn'21 is r,~,~resent.~ 1,j fivur~--
The accumulation of Sn121 wjt~. tim, w,,_Iq xamjnj 'fl,-are 4)
for the purpose of provino- the t-enetic t-tw,~-('n
3n121 in Fro,_jnd state Lnd Snlilm. Fhe Ji.,Li--riDeJ here
may be conslder-~d the most univers,L-'. it m,~Krs flirttiurm-~re
poss.ble to isolate tne nurei ii~ a low 13cra-fr,,- ~it;,to
without zarriers.
Tbere are 4 fir,.irc~113, Pind 6 r~jfpr~~n,~es, 4 cf wr.~, ir. arrt-- Slavic.
SUBMITTED: June 18, jq17
AVAILABLE: Library of Con,;re,,3q
Card 414

&UTHORSt Ne.edov, V. ToroTovi, 'A. A.
TITLEo Iaolation of Tochretium-9)m With3ut Carrier ly Mear,13
BrIaking ChmmicAl Bonds DAring O-Decomposition
(V;rdelaniye tekhnetaiya-ql~rr, bez, nositelya met:~!-:_ -Eir,is:.eniya
kha.micheakikh svyazey ;ri P_ r~tsrFlle
PERIODICALt ZhL,rna4r1eorganic",eskoy Khimii, Vol. ',r I
(USSR)
210 11"m
ABSTRACTo Methods of prod,-cticn of Bi RnE" I Bi' 7hC, ~,nJ In
were developed in -,.e viorka ',reference I ')' Which are
based upon the deatruction of the co-valent bords qf the ele-
ment-organic compounds by the processes D' t'.e P- -decay an.4
K-capture. T'his leotruction is a result j: ~,oth ':,o ~hdr,,-,es
in the shel' s of e.,.,ct:-,ns of the lau,-hter atom r~ c-noequence
of the 3elf-ioniza-.ion-~rcces3es and t~e in:~er conver9l:)n to-
E;ether with the accompiLnyinC affect 'b~( :zhe , as ow(~tll as 'he
chanCe of the chemical pr-)portiea of the eiemqr~t. au"'.Ors
Card 1/4 count 21 radioactive i 3otopen (and evor mare) w'A -~- c1r, be

Isolation of' Technetium-99m V/1 thout Carrier !)~, Meara of Breaking Chemical
Bonds During 13 - Decomposition
isolated from the conver3ion-c%ains ~f t%e
to division, a penetratin,,: mparatior, by ~~ie ralia'icn--iTt-~re
of t~e neutron, ordinary cyclotron reactions arA t,y tr.e leca~,
into the series without carriers preference , Ic, C~)nti-
nuously operating oc~urces of riLdiorictive Isoto-ten q number
of elements can bE produced I~ere in many cases. Mo 9 in-
gredJent of hexacarboxyl Was U:3ed for tne Trotlem referreJ t~
in t~e title. Tc99 can be produced in meta.9t ible st~itq by
Tc
varicus nuclear reactionst Ru n , p -709T'~, %, , 1) ) ,
1Ao99(P_)Tc99M. The latter m. thod was qplied here. T~e i rra-
diation of moljbdenum wi --h slow nt_~itrons I ei i s to t~,u f I rzia-
tion of c-everal radioactive isotopes, anLntst w~-Jc', also is
Mo9')(T'/2 6,,A"5 hours). As mentioned a',ove, t-e
P_ d e c ay
9m ~ 1 2 hn--;r3) w C mea r 3
leads to Tr9 'T V Y
an isomeric trnnoition re~iult3 e %n e u.-, -
lerenr j vi n
-isotope. "he decay gc~'Gno or' MO, Ire. -3
in fi,_7ure 1. After a brief experi-ion-il ~rirt t ~iir,3
I I "M rc M Vlan extract-
over to the methois of i9olatiun o' Tr- .
ed with double distilled water from a clilcrof-,rm-, )rather-
Card 2/4 _sc)lu~ion of hexacarbonyl. Decay curveo r)f tne preparutions

78-1-42/43
Isolation of Technetium-99m Without Cerrier by Means of Breaking
Chemical Ban& Dwring O.OnFamposition
of Tc99m produced herewith are shown in figure 3. 7hey prove
a radioactive half-life of 6,5 hours (with reference 12 to
14 correspo5ling to a wide ox.'ent). Determination of the
yield of To m. Since stable tachnotium-isotopea are missing
the general inethod of determination by means of an isotope
carrier cannot be applied here. Non-specific carriers, e.g.
manganese dioxide, can serve her�9with sufficient accuracy.
It v9a:sumud that the whole To obtained from the decay
of o xisto irk an anorganic form. Sodium permanganate oolu-
tion in acetone was introduced in a solution oC molybdonum-
-hexacarbonyl irradiated with neLtron8. Technetium wan adsorb-
ed on the amyly developing voluminous Kn02_ deposit. The acti-
vity of the hence obtained centrifugates wan measured by
means of a -counter. The activities determined were com-
pared with those of the irdtial solution of molybdenum car-
bonyl in chloroform and of the chloroform solution , which was
obtained on account of the extraction of technetium. Tc?9m
was computed according to the formula: B Ao - Al
Card 3/4 -A7=T/-

CfII;qA,,'Tlhysic,gl Chemistry - Kinetics. Combustfor.
I-'xploston3. Topoche in I stry .Catn I Ysi S .
~bs .1.-)ur: Referat Zhur .'~iim, .. r), 1959, 30r)33
, I . Wan Vfen-ch' Ing
Autt or Nofe-Juv !.').
Inst Peking UnIversity
Title The 'Study Df b 13otope lxchange in the .-lyst-I
(M-CH3CJI~) 3 Sb- On-CH 3C6HI+ )3 Sb-C12-C2H501-~'
Orig Pub: Beijing ')IIXL)e Xuet),)-. (Ziran Kextie)fstc 7, Acta
Sci Natur !nIv Tikinensts, ~~o 3, 1956,-314-319
Abstract: The kinet;.cs of isotope exchange in the ibove-
indicated system have bee, studied. The follow-
ina values were obtained for t~)e isotope-exchange
rate constant qt 4C9 '0, 60, ar-I 700; 0.65, 1.11
2.6, anj L.3 liters/mol-hr. T.ie activation
energy was found to be 14 kcal/mol.--From a
su,pmary by the authors.
Card 1/1

-zd,~

Z

t
r

-a ~i j,
ry

and Hg i t,
of 1t

i w 3
n t u r a t r
a, ', iv e

merc ry cy way )f
l s
r
-I
t T- t:.e r.
~ H9
t

wa .9
"d IT: t: r ry
i2,n, t

It )r, of
TI-9
Li
r ir

. " . :~ I , , '. . - .
. -, ... . L. ! .
" . . -1 1
L . . .
.1.1 - 9
I V - - - -

NEYNDOV, V.D.- SUMNA,
--- - ~ A-~;,
ment of radlophos-~ioruji by means o
Radiokhtmiln 1 io.2:?36-238 'S
(Pho"phnrua--I9ntop"s) (Phoophifts,
triphanylphosphine
(MIRA 12:8)

r. i na
t P%Vr-icnI ChemiL,try--Rsdiochemlstry. :6otope
JJFUT. f RZKhIM,, I'lo, 1960, No,
3 Nefe,4ov , V . D. Lau Yuan -f on ir, LI War. v-ch'a-~ t a r.,i
g Not r-ivon
1 Trives'ization tn.- C~~.emjcal rtatp or RnE (r-
~rom thr Per) in t(Cs" t
"y
HS Pb G, a n J J~ ), pt
?JB, I Hija Hsueh Psuen Pao (Ar ta Chim Sinica No 3 t
A r T I ri v a ti , r. 7 s r F) v -i ~ r) v , 5 t i ~,a t e d tn e r Ii em,- r a , sta e
Cs c I f RaF by 6 -decay of tne ~a*_- k.:)
r r, f w r or p,-,eny I-deri vat ivea; of lea i
t
)I p eff,.ct )f I
,:'. f. C11o.'MIC&I form mn*ne-
Ei t n v r ~ and ) f t lie cond i I iors un der wn ~ h I ne
t 'I e ren i C a
1 S 'i C C IJMU i. t t e n
s La L e 0 f " te J A ~7!,
invest,.irate-3 .
Fr3n ajthorB' s-mm-7-i
king Yunsz-nun

50) SOV/79-29-9-13/76
AUTHORS: Murashov, G. M., Nefedov, V. D., Skorobogatov, G. A.,
Smirnov, V. M.
TITLE: Investigation of the Synthesis Mechanism of Alcohols According
to Grignard by Means of Tagged 0
PERIODICAL: Zhurnal obahchey kbimii, 1959o Vol 29, Nr 9, pp 2864-2868 (USSR)
ABSTRACT: As proven by A. N. Neameyanov and V. A. Sazonova (Ref 1), a
hydrolysis of carbinolates must take place in the final stage
of reaction in the synthecis of alcohols and carboxylic acids
according to GrIgnard. Two entirely different reaction courses
are possible in this connection. In the synthesis of alcohols
the hydrolysis of carbinolates may occur either by the cleavage
of the bond between the alkyl group and the oxygen atom:
R-O-MgHal + HO*H ---* R-O'6H + Mg (OH)Hal (1), or by the
cleavage of the bond between the magnesium- and oxygen atoms
R-O-MgHal + HO*H R-011 + Mg (O*H)Hal (N). There are but
source mentions in publications concerning the investigation
of Grignard's reactions by the aid of isotopes (Ref 2). Some
authors (Ref 3) consider a magnesium isotope exchange between
Card 1,13 the Grignard reageni and the magnesium halides to be possible;

SOV/79-29-3-13/'76
Investigation of the Synthesis Mechanism of Alcohols According to Grignard
by Means of Tagged 0
still, the isotope exchange between CH 3MgBr and Mg 28 Br 2' for
example, did not yield any positive results (Ref 4). Finally,
an investigation by means of deuterium was made of the reduc-
ing action of the Grignard reagent in the reduction of benzo-
phenone in benzohydrol under the action of iaobutyl magnesium
bromide (Ref 5). Nothing has yet been published concerning
the rearrangement of oxygen in the synthesis of alcohols and
carboxylic acids,. An attempt was made in the Investigation
under review to fixplain whether reaction (I) or (N) takes
place in the hyd:rolysis of carbinolates. The initial step was
the synthesis of triphenyl carbinol by the reaction of benzo-
phenone with phenyl magnesium bromide (Scheme 3), and the
hydrolysis of carbinolate of magnesium was shown to take
place with the preservation of the alkyl-oxygon bond and with
the separation of the metal-oxygen bond. The reaction water
was investigated for 018 according to A. I. Rrodskiy (Ref 7)
in the mass spectrometer of type MS-1. There are I table
Card 213 and 11 references, I of which are Soviet.

SOV/79-29-?-13,'76
rnvestigation of the Synthesis Pechanism of Alcohols ;,c?ordir.A7 to ~;rignard
by Mears of Taggad 0
ASSOCILTION: LoningraJskiy C,-ouudzirs*vennyy univeraitet
(Leninf,rad State I'lliversily)
3UBMITTED: September 21, t958
Cara 3/5

ii-L, ZAY -IMEV, V, ~1,, "JPJv'I[L;V, S. A., MURT11, A. N. ( lis: -~ P )
"Use of Chemical A ...... x-,prinylr4i Pr,,--ef-,riei; " i,,- *-it - br-- --uy '' . -
the Synthesis of Organic ~'rjrnpauriih; 1' Pfduritun 11.
paper submItted for ~tie S~mpcjsium i, I,iLt M'ft:--,s of lltucear nwil ~ n
(IAEA) P-ague, 21*-,7 Oct- 19()C:-

14EFED-OV, V. D., RYUIOIIPI, Yi. A., W)HOD)VA, M. A., N5,11,111"CIV, V. 3., I'l-'hi-Mill ( I )
"Study o1' Isutope in B-.a-[P-f~ay A' Nutaral --)t P z "' Lex"I".
paper submitted for t~he sympislum :I t, ric -'-'f lec',-, ,f Ilu:-lear Tmas,',,rT.1a, I )ri
(IA-EA) P-nole, 24-27 ()-t. L')bc.

PRASE I BOOK EXPLOITATION SOV/5404
Murin, A. N., V. D. Nefedov, and V. P. Shvedov, eds.
Radicjkhimiya I khimiya yade.rnykh protsessov (Radiochemistry and
the Chemistry of Nuclear Processes) Leningrad, GoskhImIzdat,
1c)60. 784 p. Errata slip Inserted. 13,000 copies printed.
Ed.: F. Yu. Rachinskly; Tech. Ed.: Ye. Ya. Erlikh.
PURPOSE : This textbook is, intended for students of physical
cnemistry or radlochemictry at universities and schoole of
higher education. It may also serve as a handbook for scl-
entific workers and technical personnel in the radiochemical
industries and other related branches.
COVIRAGE: The textbook deals with problems In modern radio-
chemIstry, Including adsorption, cocrystallization, isotope
exchange In radioactive elements, the chemistry of nuclear
procefl3eB, and methods of preparing radioactive isotopes
and labeled compounds. Special attention has been given
to chemical processes caused by radioactive transformations
and radiation. in the main the book was compiled by person-
Card-1/16 -

Radlochemi8try and the Chem..stry (Cont.) SOV/54o4
nel of the Radlochemistry Department, Leningradskly gos-
udarstvennyy universitet imeni A. A. 2hdanova(LenIngrad
State University Imeni A. A. Zhdanov), and the Department of
the Technology of Artifi,21al Radioactive IBotopes, Lenin-
gradskly tekhnologicheskly Institut imeni Lensoveta (Lenin-
grad Technological Institute imeni Lensovet). No person-
a
*ities are mentioned. Referencen accompany Individual
..
chapters.
TABIZS OF CONTENTS:
Foreword
Introduction
9
11
Ch. I. Distribution of Substances Between the Solid Crystal-
line and the Liquid Phases. L. L. Makarov, V. D.
N'efedov, and Ye. N. Tekster
1. The_f_q~o_rtance of dii3tribution processes In radlochem-
lotry 17
C ard'.0/1-6

Radiochemistry and the Chemistry (Cont.) SOV/5404
12. Anomalous mixed crystals 1 0
13. Nothods of differentiating the types of oocrystallization 4
14. Some examples of the use of Isomwphio recrystallization
processes in radioohemloal investigations 88
Ch. II. Adsorption of Radioactive Elements on Ionic Crystals.
V. D. Nefe(lov
1. )Aww-Ur-Wds_o_r__pMon and the systematics of adsorption
phenomena 94
2. Primary potential-forming adsorption 102
3. Primary exchange adsorption 105
4. flooondary exchange adsorption 110
5. Znternal adsorption 117
6. Methods of differentiating the types of adsorption 122
T. Uperimental methods of Investigating the adsorption
of radioactive elements 1~3
8. Some examples of the use of adsorption processes in
radioohemloal studies 125
card-*/16

Radiochemistry and the Chemistry (Cont.) SOV/5404
Ch.M. 'I"he Electrochemistry of Radioactive Elements. Ye. N.
Tekster
1. Some features of the electrochemistry of radioactive
elements 129
2. Methods of determining the critical potential for the
precipitation of radioactive elements 1-31
The applicability of the Nernst equation in the high
dilution range 137
4. Effect of the nature of the electrode on the critical-
potential value for the precipitation of radloactlve
elenents 142
5. The electrochemical methoc of investigating radio-
act',ve elements as a means of studying their chemical
and physicochemical properties 150
6. Electrochemical methods of extracting and separating
radioactive elements 154
Ch. IV. Isotope Exchange. A. N. Murin, V. D. Nefedov, and
Ve. N. Sinotova
1. Bas.c concepts and examples of Isotope-eXchariW reactions 166
2. Reasons for the occurrence of Isotope-exchange reactions
C a rd--5,/16

Radlochemistry and the Chemistry (Cont.) SOV/5404
and the equal distribution of Isotopes 171
3. Peculiarities of isotope-exrliange reactions and basic
typee of Isotope-redistribution processes 175
4. The exponential function of isotope exchange for simple
reactions in homogeneous ays,;emB 179
5. Principal kinetic characteriotics of isotope-exchange
reactions 185
6. Mechanism of homogeneous iso,~ope-exchange reactions 187
Heterogeneous Isotope exchange 197
Methods of separating the chismical forme which take
part In isotope-exchange reactions 203
9. The effect of some factors on the Isotope-exchange
process 2o6
10. Determination of the optimum time of isotope exchange 209
11. Some examples of the use of Isotope-exchange processes
In radiochemical investigations 212
Ch. V. The Colloidal State of Radioactive Elements. V. D.
Nefedoy
1. Trui-ridiocolloids and pseudoradiocolloids 215
Card-6/ 16

Radiochemistry and the Chemtstry (Cont.) SOV/5404
2. Factors affecting the formation of radlocolloids
3. Methods of discovering and studYing radiocolloids 222
4. Some exam,plos of the use of colloid-forming processes
In radlochernical Investigations 2J7
Ch. VI. Chemical Changes Induced by (n,y) Reactions. A. N.

v
Kurin, V D Nefedo , and M. A. Toropova
I . Some characieriaMi7f
(n, Y) reaction8 241
2. Energy ard spectra of Y-ray capture 245
3. Recoil erergy during the emission of y-quanta of
capture 2t)u
4. The role of Internal conversion in chemical bond rup-
ture during radiative neutron capture 255
5. The retention phenomenon 257
6. Isotope effects in the (n, Y) reaction 274
7. Practical utilization of chem1cal changes during
radiative neutron capture 277
Ch. VII. Chemical ChangeB Induced by n) Reactions. A. N.
Murit), V. D. Nefedov, and V. I. Baranovskiy

Car~-7 ~qgeral InLormd=on an photonuclear reactions 23

Radlochemistry and the Chemistry (Cont.,i SOV/5404
2. Enrichment of radioactive isotopec formed by a ( y, n;
reaction
3. The chemical state of atoms arlairg from a (y, n) re-
action 231)
Ch. VIII. Chemical Changes Induced by Isomeric Transitior
ProceS!3eS. V. D. Nafedov, Ye. N. Sinotova, and
A. S. Krivokhat skly
1. Principal properties and metriods cf producing nuclear
Isomers 294
2. Methods of discoveri ng and Identifying Isomeric nuclei 299
3. Causes of chemical c hangeq during isomeric transition j04
4. The use of (,hemical changes occurring during
Isomeric transitlon In determining coefficients of the
Internal conversion and separation of nuclear Isomers Jul',
Ch. I X. Chem1cal Changes Induced by (n, p) Reactions. V. D.
Nefedov and 0. A. Skorobogatov
1. Some dliar-a-c-.eriatics of the W" ( i, p) 13"' reaction j14
2. Stopping process of the (,11' recoil atom 317
Card 8/-16

Radlochemistry and the Chemistry (Cont.)
7. Extraction apparatus
Ch. XIII. The Chemistry of Radioactive E.1ementB.
Nefedov and M. A. Toropova
1. Technetl-um-
2. Promethium
3. Polonium
4. Astatine
5. Radon
6. Franclum
7. Radium
C,L. XIV. ActInIcles. A. S
1 .General Information
2. Actinium
3. Thorium
4. Protactinium
5. Uranium
6. Neptunium
7. Plutonium
8. Americium
Card. 11/16
SOV/5404
V. D.
KriVokhatskiy and Ye. A. Belousov
44-,
4~2
460
461
470
475
47-~
482
48 9
49j
4)b
504
5GP;
521
527
c~,134

RXYXDOV. V-D-i RYUKHDI. Tu.A.; TOROPOVA. M-Ao
Study of Isotope effects taking place In the course of the
,O-decay of natural lead Isotopes. Radlohhindia 2 no.4:458--463
16o. (NIPA 1339)
(IAWA-lootopea)

NXnDOV. V. D. ; GRAMV, S. A.
Paper chromtogTaphic study of the chemir-il forms of W forsed
In the A-decay of RaD. RadlokhWia 2 no..W#&~-49 ,6o.
(MIRA 13:9)
(Load-Isotopes) (Blfjmlth-Iaotop~33)

S/ 186/60/D02/006/021/026
~~-51/AI29
AUTHORSt Nefedov, V. D.; Sinotova, Ye. N.,; Trenin, V. D.
TITLE: A study of the isotope exchange In the syntem
B1*(C6H5)3 - BA(C 6H5)3CI2 - alcohol.
PERIODICAL: Hadlokhimiya, r. 2, no. 6., ig6o, 739 - 742
TEXT: The * netIcs of isotope exchange was inventigated and the reao-
tion rate constants oi this exchange were determined, as woll as the order of
reaction and energy of activation. The exchange kinetics were studied In order
to obtain a clearer understanding of the behavior of radionctive bismuth forms
In the exchange during the bAta-decay processes of the natural bismuth IsotoDe,
The initial compounds were obtained according to methods described in Ref. 4
(K. A. Kocheshkov, A. P. Skoldinov, Sintet. metcdy v obl&st.i metallorgan. soyedi-
nenly sur'my I vismuts.( Synthetical methods in the field of metallorg&nic anti-
mony and bismuth compounds) lzd. AN SSSR, M.-L., 8, 1947). The solubility of
biamuthtriahenyl and bismuth trlphenyldlchioride In alcohol at various tempera-
tures was Investigated In order to determine the conditionr of separation of
Card lAi

s/18,S/60//002/oo6/DZ I /o26
A study of the Isotopes exchange In .... A051,4129
the exchanging compounds. The isntopf.- exchange In the given -stem was studied
according to the method described by the author (Ref. 1: V. 1). Nefedov; Tao
Syao-en, Zhurn. Peklnsk. un1v., 4, 383, 1959). The experimenta'l results showed
that the reaction of isotope exchaxige In the given system is of the first order
with respect to each of the componenta. The reaction rate constants were calcu-
lated from the foruraia:
_?.~ 1g (I - F)
K . . (a + b) t
where F is the degree of exchange. a the concentration of 13i*(c 2H5 )., or
BI(C14 C5H5)3 (in M), b - the concentration of BI(C6~6C12t( I" M)' t -'the time
of exchange (in hours). The acti,iation energy was ound o be equal to 15-900
c&l/mole. The investigated compounds were regarded as pseudoatoms and their
derivative (Ref. 5: R. Gar7-'-, L. Grimm. Organometalle. Samnlung chem. techn.
VortrapRe, 29. 3tuttgart, 1~Q7)- From this stand point one of the compounds par-
ticipating In the exchange (Bi(C61'5)3 ) Is regarded as a pseudoatom of mercury,
and the other (Bi(C6H5),Cl2) as Its salt' Thus, the investigated case of Isotope
exchange is considered to be a tnie solution of a pseudometa-. and its salt. An
Card 2/4

A study of the isotope exchange In
s/1&,/6o/oo2/oo6/()2i /o26
A051/'A129
assumption is made that the Isotope exchange In the given system has an electro-
nic nature, whereby the electrons shift according to the scheme:
40(c 2e 4 2+
BI 6H5)3 BI(C6H5)3
4* 2+
Bi (C6H5)3 Bi(C6H5)3
1 ennures the isotope exchange of BI amongst the studied chemical forms. The
low valuA of the aotlvfttion ener~3- is also thought to signify the presence of ftn
qleotronIc exchange. The u3e of doubly-labelled compounds can serve to solve
the nature of the exchange mechanism in the given system and others similar to It.
A comparison of the kinetio chara,,~teristlos of the Isotope exchange in the sys-
tems Sb(C6Hr,)3 - Sb(C6H ) Cl - a]"cohol and Bi(C H ) - Bi(C6H 5) C12 - alcohol
led to the conclusion t~a~ & isotope exchange ~n'tAese two sys~ema have similar
rates of reaction. The cause of the similarity In the kinetics of exchange In
the two systems is thought to be due to similar values of the bond energies of
the 5s-electrons In the pseudoaton Sb(C6Hr,) 3 and that of the 6m-electrona of the
Card 3/4

A study of the isotope exonang,!p In
S/186/60/002/1'5~/021 /026
A051/A129
pseudoatom Bi (c6H5)3 . A 3*,, j of other similar systems, such as As(C6H5)3 -
- At (e6F,9)3e' is recommended in order tc; clarify this quertion. There are
4 tablev, 4 figures and 5 references! 4 3ovlet-bloc and I zion-3oviet-bloc.
37M.-M M i September 19, 1959.
card 4/4

81723
S/020/60/'33/01/34/070
B011/B003
AUTHORS; Murin,, A. N., Nefedov V D , Z.kytsev, V. M. Grachev, S.A.
TITLE; Synthesis of Elemental-organic Compounds of Polonlum'lby
Using Chemical Changes Taking Place During the Processes
of Beta Decay of 110B
- 77
PERIODICA.L; Dokla.dy Akademii nauk SSSR, 1960. Vol. 135, No. 1,
pp. 123 - 125
TEXT; The ability of the elements polonium, franciuz, and astatine to
form elemental-organio compounds In a result of their position in the
periodic system and of a general law discovered by D. 1. Mendeleyev.
This law was newly foraulated by Acadenioisn L. - M-. Ness-Pyanov (Refs. 1
and 2). The present paper describes the development of now methods of
synthesizing the compounds mentioned in the title, which had been un-
known so far. The method based on the utilization of ohemical changes
occurring during 0-deoay might be useful in this case (Refs. 7-11 for
bismuth). The authors prove that the said polonium compounds (RaF) are
formed by P-deosy of RaE, RaE is a componont of several aromatic
Card 1/4

8
0/13 3/0, /34 /070
Synthesis of gli,mental-organic Compounds of 310.2
B01 1'p
Polonium by Using Chemical Changes Taking 1 B005
Place DurIng the Processes of Beta Decay of RaE
derivatives. Polonium was accumulated In crystals of BI(RAE)Rh 5 and
Bi(R&B)Fh 3C1 2' In order to obtain these compounds with a sufficiently
high specific activity, the authors made use of chemical changes oc-
curring during the O-decay of R&D whict is contained In RaDPh 4' The main
problem was the isolation and identifi#iation of the compounds of the
d&ughter elements of polonium (RaF), fDr which purpose the authors used
paper chromatography. Analogous derivatives of telluriuz, TePb,,
TePh2Cl 2' ani TeFh 3Cl, labeled with Tq~ 127 were used to determine the
position of individual elemental-organic polonium compounds on the
chromatogran. These Po compounds were separated in the Dresence of
microquanti'Lies (Ag) of these carriers. Results of measurement are shown
in-Fig. 1. The following values were obtained for the above-mentioned
tellurium compounds in ethyl acetate: R f: TePh 3C1- O.1j TePb 2Cl2
0-50 - 0.551 TePh 2 0.70 - 0.75. The following values were obtained in
Card 214

617"
Synthesis of Elemental-organic Compounds of B102 10/133/01/34/070
Polonium by Using Chemical Changes Taking B011 YBOO3
Place During the Processes of Beta Decay of R&E
CC14 (without treatment of the paper): R f. TePh 3Cl--Oj TePh 2Cl2 0.6 - 0.7;
TePh2 - 1. Fig. 2 shows the distribution of the a-activity among various
chemical modifications of polonium on accumulation in Bi(RaE)Ph 3crys-
tals: Poph 2C12 15�6%j PoPh 2 24�6%, and the sum of the remaining Po de-
rivatives was 61+6~. Data are also given for CC1 4 and petroleum ether.
Pig. 3 shows the results of chromatographing in ethyl acetate (R f ' 0.54).
It may be seen that the chemical state has - strong effect on the yields
of various RaF forms. This makes It possible to utilize chemical changes
occurring in 0-deray for the synthesia of the Po compounds mentioned in
the title. The authors thank G. A. RazuvayA,!-, Corresponding Member of
the AS USE, and B. K. Preobrazheaskly for their advice. There are
3 figures and 15 referen--99: 9 Soviet, I American, 4 German and
1 Chinese.
Card 5/4

817
Synthosis of Klesental-organic Compounds of 8/020 ~10!133/01/34/070
Polonium by Using Chemical Changes Taking B011,7BI1003
Place During the Processes of Beta Decay of R&E
ASSOCIATION: Leningradskiy gosudarstvennyy universitet im. A.A. Zhdanova
(Leningrad State University Imeni A. A. Zhdanov)
PRESENTED; March 10, 1960, by A. 9 Nesmeyanov, Academician
SUBMITTED: March 6, 1960
Card 4/4

A05 1 ~Al 29
.Ii~ x oc,~
AUTHORSo Murin, A.N., Nefedov, 7.D., Larionov, O.V.
TITLF, The separation of nuclear isomers of tellurium
PERIODICALs Radlokhimiya, v 3, no 1, 1961, 90-96
TEM The authors have developed. a now method for the separation of nuclear
isomers of tellurium and the aspexation of lower isomer compound states
without a oarri*r, as well an a asthed for the separation of radio-ohomioal,y
pure Te127 from irradiated tellurium dimethyldinitrate with neutrons ( and
r -quanta). They show that the extraction of T9127 from the Irradiated
sample reaches s, yield cloee to 100%, which corresponds to the break of the
ihomical bond in each converted isomer transition. The greater part (about
91%) of rho extranted Te127 is in the luwer tetra-valent state and only
about 9% is in tho, hex&-valent s!.ato. The initial rompound uoed for the
eFpara4ion of the main isomer state cf tellurium was tellurium dimethyldi-
I
S/18 95%r13/OC1 016/020
Card 1A

23883
S/186/61/cIC3/OCI/016/020
The separation of nucl*&r isomer@ of tellurium A051/AI29
nitrate (CH 3)2TP(NO~) 2' The latter was formed from tellurium dimethyldi-
iodinoo To * 2(CH 3)1 (CE3) ToI . The authors investigat3d various ways of
isolating To in the basic siat*i 1) extraction of the basic salts of Mn on
the residug formed when an alochol solution of Xn(CH COO) is added to the
sootont solution (CH Ts(NO ) was found to be in~-,o2voniint, since the ro-
)2 he
sidu* retained most If t iMial quantity of the compoundi 2) extraction
on the residue of H WO gave a omel*.. yieldi 3) extraction on Mn02 was im-
possible due to oxigatf3n of the initial compound and dissolution of Hn021
4) extraction on the metal hydroxides (Fe, Bi) gave the highest yield of Te
in the basii state. The authors adopted the To isolation method on iron
hydroxide. The curve of Fig 3 qhows that there '.a only pe isotope with a
half-life of 9.5 hours, which proves the presence of Te12 in the sample in
the basic state. The degree of impuzities was studied using metastable
Te1272, whereby the decay of the TsI:?7 samples was 'investigated (Fig 2).
Further, the radiochemical purity of samples produced asoording to the
authors' methodr, was compared to thal: produced according tn the methods of
Siborg, Livinhood and Kennedy. Thp average yield was found to be 79.5!2.2%
Card 2/6

23883
S/186/61/OC3/OC1/016/020
The separation of nuclear isomers of *:ellurium A051/AI29
when accumulated in crystals. The high yields noted by the authors are
thought to be the result of the sharply expressed irreversibilitv of the
occurring chemical changes during isomer transition when using (CH ; Te(lf~
The data of Table 2 show that with an accumulation of Te in the cr~sials
the yield of the basic state 12 somewhat leas since in thisicase there is a
greater'stabl.litiy of the basic state of Te127 in the form of the initial
tellurium diniethyldinitrate compound. The difference in the chemical be-
havior of tho tetra and hexa-valent s';atea of Te helps to solve the problem
of To diatribution between these valency states. The study of this question
was carri.ed out by the isotopes carri,ir method corresponding to various
chemical compounds (TeO and H TeO ). The separation of the 6- and 4-valent
To was based on the rediotion 20f 4the latter to the elemental state by
ulfurdioxide in a 3 n solution of 11C1 (Ref 12). The average yields are127
:
qual to 8-5tl.2~6 and 91.511.2%, respectively. The fact that most of Te
is in the lower valency state is explained by secondary processes which
occur after the above-mentioned phenomena. The activation of Te in the main
state was conducted on a betatron and the separation of Ile in the main state
was carried out according to the reaction (i,n) (Fig 4)_ There are 4 fi-
gures, 4 tables and 14 references: 6 Soviet-bloc, 8 non-Soviet-bloc.
Card 3/6

23003
S/186/61/003/002/015/ol8
EIII/E452
AUTHORS: Nefedov, V,D., Vykhovtoev, V.L., Chi-Lan, Wu and
drachov, S.A.
TITLE: Chemical changes occurring in 0-decay of RaD which
is part of the composition of radical-deficient
derivatives of lead
PERIODICALi Radiokhimiya, 1961, Vol-3, No.2, pp.225-228
TEXTs The authors note the complicated nature of changes
occurring in the P-decay of the central atom of organic
derivativos of lead. It was shown (Rof.lt V.D.Nefedov,
V.I.Andreyev, ZhFKh, 31, 3, 363 (1957) and Ref.2t V.D.Nefedov,
M.P.Belldy, ZhIPKh, 31, 3, 986 (1957)) that with excoss-radical
and radical equivalent phenyl derivatives of RaV and ThB the
bismuth isotopes produced on their decay can form a whole
series of compounds. Their origin is complex and can be
primary (due to rearrangement of the original molecule in P-decay
processes not accompanied by internal conversion), secondary
(due to recombination of fragments produced in $-decay processes
accompanied by internal conversion) or tertiary (due to
redistribution of daughter elements between compounds due to
Card 1/4

23003
9/186/61/003/002/015/018
Chemical chan4os ... 2111/9452
chemical processes during analysis). It is difficult to establish
the participation of adjacent molecules in some of the changes
taking place. A possible way of solving this important problem is
to study the chemical state of daughter atoms produced in the
decomposition of radical-d*ficient load derivatives (i.@. compounds
whose molecules contain insufficient radicals to form the highest
organic derivatives of bismuth, e.g. PbPh2CI2)- If appreciable
quantities of such organic bismuth derivatives appear in the
decomposition products, this would indicate that neighbouring
molecules participate, and conversely. The problem in thus to
compare the quantities of complete organic bismuth derivatives
formed in the decomposition of, on the one hand, radical-equivalent
and radical-surplus and, on the othor hand, radical-deficient
derivatives. The authors studied, zhis with R&DPh, RaDPh3Cl and
PADPh2Cl2- They used the isotope-carriers method (described in
Ref.1 and 2) to study first the compounds of R&E formed during
accumulation in crystals of RaDPh4 and RaDPh Cl The proportion
of Ralt existing an Ra1tPh3 was determined by ?he*precipitation and by
the solvent-removal methods. In the first, the Pb(R&D)ph3C' or
Card 2/4

23003
!;/186/61/003/002/015/018
Chemical changes tiii/E452
Pb(RaD)Ph4 was dissolved in 15 ml of pyridine containing about
400 mg BiPh and 5 ml of BiPh3C'2- The precipitate obtained on
adding 30 ml of distilled water was filtered off and washed with
water and then with two 10 ml portions of alcohol. After drying
ether extraction was effected, the extract being filtered and
evaporated. The Bi(M%E)ph3 residue was purified by
recrystallization. In the solvent removal method, about 35 mg of
Pb(R&V)Ph3CI or Pb(RaD)Ph4 was dissolved as before, but the
pyridine was removed by a stream of cold airl the residue was
extracted with other, the Bi(Rat)Ph obtained after removal of
other being purified as before. Similar procedure was used for
Rat existing an R&ZPh3C12. The two methods were also used for
Rat compounds formed on accumulation in crystals of Pb(RaD)Ph2Cl2,
but here warm pyridine was used. Special experiments showed that
among the causes of discrepancies between the result of the two
methods are tertiary changes. The results show that chemical
changes in P-docay of the control atom (R&D) in element-organic
derivatives of lead RaDPh4, R&DPh Cl and RaDPh2Cl2 do not draw in
surrounding molecules. Acknowleigments are expressed to
A.N.Murin who made valuable suggestions on this work. There are
Card 3/4

23003
S/186/61/003/002/015/018
Chemical changes ... Elll/E452
2 tables and 5 references, 3 Soviet-bloc and 2 non-Soviet-bloc,
The referenc* to the English language publication reads as follows:
R.R.Edwards, J.M.Day, R.E.Overman, J.Chem.Phys., 21, 9, 1555 (1953).
SUBMITM.- October 16, 1959
Card 4/4

2 300h
S/186/61/003/002/016/018
1:57 1.9,M 0 r11 60', .7 E142/9435
AUT11ORSi Nefedov, V.D. and Skorobogatov, G.A.
TITLE: On multiply tagged compounds
PERIODICALi Radiokhimiya, 1961, Vol.3. No.2, pp.229-236
TEXT: Compounds in which the essential (if not all) the activity
is to be found in the molecules containing at the same time a few
tagged atoms are called multiply tagged compounds. The
difference between simple tagged compounds and their mixtures and
multiply tagged compounds is of great importance since In some
respects the behaviour of the latter differs sharply from that of
simple tagged compounds. A different nomenclature should therefore
be used for the two classes of compoundst a few examples of
different types of writing the formulae of simple and multiply
tagged compounds are given. According to K.Clusius (Z.Elektrochem.,
58, 7, 586 (1954), the authors designate compounds consisting
entirely of isotope molecules of a given type "isotope compounds',
and compounds consisting entirely of isotope--isomer molecules of a
given type "inotope isomers". Multiply tagged compounds, diluted
by a certain amount of inactive substance, have a non-statistical
distribution of the isotope atoms and are therefore thermodynamically
Card 1/3

2 300L
5/186/61/003/002/016/018
On multiply tagged compounds E142/E435
unstable systems. The authors discuss the importance of theme
multiply tagged compounds for certain chemical investigations as
for instance the reaction mechanism of the isotope exchange between
triphenyl antimony and triphenyl dichloro-antimony (Ref.2:
V.D.Nefedov, Pang Won-Ch'ing, Acta Sci.Nat.Univ.Pekinensis,
319 (1950) or for establishing the nature of intermediate
complexes. Difficulties in the synthesis of theme multiply tagged
compounds are discussed especially the need for knowing exactly the
initial concentration of the isotopes in the samples since otherwise
it is not possible to calrulate the yields of the various isotope
molecules of the synthesized compound and to carry out mass
spectrometric analysis. Any individual chemical compound
represents in itself a mixture of isotope compositions and these,
in turn, represent a mixture of isotope isomers. Formulae
expressing the content of isotope-isomer molecules can easily be
deduced. The kinetics of the radioactive decomposition of
multiply tagged compounds and the agglomeration of the products of
this decomposition were also studied. The molticule which is
obtained during the decomposition of one of the radioactive atoms of
Card 2/3

2 300L
s/186/61/003/002/016/018
On multiply tagged compounds E142/E435
the multiply tagged molecule is also tagged and can therefore
undergo further decomposition. Formulae of the decomposition of
the molecule are derived and the conditions for maximum yield of
isotope compounds are determined. A.D.Petrov is mentioned.
There are 1 figure and 6 references: 4 Soviet-bloc and 2 non-Soviet-
bloc. The reference to an English language publication reads as
follows: R.L.Wolfgang, R.C.Anderson, R.W.Dodson, -I.Chem.Phys.,
24, 1, 15 (1956).
SUBMITTEDi September 19, 1959
Card 3/3