SCIENTIFIC ABSTRACT RUDENKO, N.P. - RUDENKO, N.S.

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SCIENTIFIC ABSTRACT
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RUDEITKO, III.P. PASTUKHOVA, Z.V. Methods of separating radioactive isotopes without a carrier. Part 8: Separation of the radioactive isotope Tc990 b7 rjeans of an electric field an4 investigation of the possibility of separating the radioactive isotopes Nb97 and Nb 95 by this riethod. `4~dlokbimiia 1 no.3:277-?,g '59- WIRA 12:10) (NinbWo-IRotopes) (Technet ju,,-Iao t ope a) RUDENKO, N.P.; SEVkST'YA1TV, A. I. Preparation of the beryllium-7 radioactive isotope as a re- sult of a secondary nuclear reaction in a nuclear reactor. Radiolchimiia 1 no.6:691-693 '59. (MIRA 13:4) (Beryllium--Isotopes) (Lithium--Isotopes) RUDENKO, II.P.; STj,RY, 1. Methods of separating radioactive isotopes without a carrier. Part 9: Separation of radioactive inotopen by ex- tracting them in the form of 9-diketonatea. Radiokhimiia 1 no.6:700-705 159. (14IRA 13t4) (Ketones) (Radioisotopes) (Xxtraction(Chemiatr7)) 21'8) 5(0) AUTHOR: Lapitskiy, A.V. SOV/55--59-3-29/32 TITLE: The First All-Union Conference of Universities and Colleges on RadiochemLstry _ PERIODICAL: Vestnik Moskovskogo universiteta.~ Seriya matematiki, mekhaniki, astronomii, fiziki, khimii,, 1959, Nr 3,; pp 221-223 (USSR) ABSTRACT: This conference was convened by the initiative of the laboratoriya radiokhimil khimicheskogo fakulteta MGU (Labora- tory of Radiochemistry of the Department of Chemistry of Moscow State University) and was held in Moscolp from April 20 to April 25, 1959~ It was attended by professors, teachers, and. scientifio collaborators of 32 universities and colleges of the Soviet Union. In his opening address, An.N.E~~ ~9 - - riance of radio- Dostor of Chemical Sciences, stressed the ilip 0 chemistry. .10 lectures were delivered by members of Moscow State Univers't Laboratortya yadernoy fiziki (Laboratory of Nuclear Phy~-Ics)- 1,1-P,Rud_enkn_ A,I~Sevaatfyanov: Production of Bor "]Jurri-7 I.,., _11eacti_011__(T,2n); L- ry, NP.Rudenko: itn - D Productlon of Radioactive Isotopes by Extraction as P-Dliketonatas~ Card 1/4 Labo~atoriya radickldmii (Laborator;y of Radiochemistry): An.,.N. The First All=Union Conf-=rence of Universit--les SOV/55-159-3-29/32 and Colleges on Radiochemitstry Nesmeyanoy, B~.M. Korole'ro L.A.Sazo-viov: Separation of Radio-.. active Isotopes in the frradiation of Colloids,1 Ax-11~Nesmeyanovq, Yq.,-A,,,,,B-griq,gyj E.S.Filatoy. V~Kondratenkq_, C K.Panek, B.ShuOL~': Secondary Reactions of the Recoil Atoms 80 Br and 62 Br in Methy! Bromides; B.G.Dzantiyev, I.M.Barkalov; V.V.Khrapo-; Reactions of "Hot" Sulfur- and Nitrogen Atoms With Hydrocarbons; 1~.Z.Iofa, L.V.Bobrov., A.11.Ratov: The State of Radioactive lsot-3-j6;~i-n E re-meely Dilute Solutions; M.S. Me:,-uklo;rr,., ]~.I...Melikhov* General Theory of the Copre-.ipitation of Radioactive Elements With Non-isomorphous Crystalline Prezipitates; A,V,.LaDi',skiyp I.A.Savich, Chzhuan Ya-u Coprecipitation ef Protaotinium With Loaplex Copp2unds of Ti, Nb;and Ta; II..Ktj9jo9eye7, V.V~Ivanenkovq V.N.Bochkare-r: Application of Radioactive ]~-aper CF-rcma~ographyll,- K.B. Zabore)-ik,_-,. A,. M. Babe shki-a. II.S.Aulichenko: Aocumulation and Separation of Reo,11.1 ms on the Basis of the Example Ra224 and Ra228; K.B.Zabrorenko, A.11,,Babeshkin, V.A.Beyevshaya~ Card 2/4 -L,,L.Meli-khcir, Appllcatlo,-. of the E~manation"-CI4~-hod for the The First All-Union Conference of Universities SOV/515-59-3-29/32 and Colleges on Radiochemistry Investigation of -the Transformation of Solids; V.~I.Spitsynj K.B.Zaborenko, A.M.Babeshkin, M~A.Radicheva: Traasformation, of Heteropoly-compounds; K,.B,Zaborenko~ A.M.Babeshkin, I.V. Kovalenko: Geochemistry of Radium; K.,B.Zaborenko, V,I. Korobk-)v: Mizroanalytical Determination of Uranium by Means of Nuclear Emulsions. An.ff,,Zfesmeyanov, Partial Vapor Pressure of Co in Alloys With Nij Yu.A.Priselkov, YuA. Sapoz-hniko-,r, A.V.Tseplyayeva, V.V.Karelin: The Behavior of a Molecular Metal Beam in tiii- Field; I.Y.Golubtsov, A.V.Lapitskiy, V,,K.Shiryaye-r: Vapor Pressure of Niobium Dioxide;~I-V.Golubtsov, Yu.A.Likhachev, Ye.K.Bakov: Various st--- C_~7r-uc ti 0 ns of -~he S_~intilldtion Attachment to the Apparatus of the Type B~ Kafedra anal4ticheskoy khimii (Chair of 956 Ana'.1ytioal Chemistry).~ Niobium as a Rad'ioactive Tracers; I.P.Alimarin, T.A~Belyavskaya, Mu Bin-vW; Scxption of Zr by Ion Exchangers; k.1.jBusevj V,M. Byr~ko: The Use of Complex Pyrazolindithiocarbamates in Radio- metry., Kafedra neorganicheskoy khimii (Chair of Inorganio Chemistry); Ye.,A, Ippolitc-,ra2 Yu,P.Simanov.. L~M.Kovba, G.P. Card 3/4 Polunina, I.L.- _fe_r_eznikovai Uranates of Some Bivalent Metals- M The First All-Union Conference of Universities SOV/55-59-3-29/32 and Colleges on Radiochemistry V.G~Xnyagina, OLLLr.,. Ifemkova: Uranium Compounds With Acids of TFe_ Low-valence P; V.I. Spitsyn- Influence of the Radioactive Radiation of Solids on Their Physico-chemical Properties; . I.Ye.Mikhayle-riko V.I.Spitsyn: Isotope Exchange in the System K9SO - SO at High Temperature. Kafedra khimicheskoy kinetiki 4 3 (Chair o!f Chemical Kinetics): I.V.Berezin,_V.L.Antonovski N.F.Kazanskay : Application of Tritium for the Purpose of DetermininE the Velocity Constants of the Separation of Organo- hydrogen Compounds. AnA,Nesmeyanov delivered a detailed lecture on the Methodology of Radiochemical Instruction at the chemical departments of universities. Card 4/4 5(2), 21(1) SOV/78-4-1-37/48 AUTHOR: RudenkG, N. P. TITLE: WThe *27 Yttrium 90 in Radio-Chemically F'ure ,7:.: ...... lhshout- C,.--Precipitant (IV. Poluch-3n-ye bez nositelya ~t~-__ya 90 v -ad-okh-michesk' chistom sostoyanJ.- W PERIODICAL: Zhurnal neorganicheskoy khimiii, 11359, Vol 49 Nr 1, pp 220-224 (USSR) ABSTRACT: An extracting method. for the production of pure Y go f-rCM solutions containing strontium has been worked cut. Yttrium- 8-oxyquinolate is extracted with chloroform. The extraction done once of yttrium-8-3xyquinolate with chloroform from acetate solutions and ct-her buffer solutions depending on the PH value of the solution, the yttrium. concentration in -the solution and the concentration of 8-cxyquinoline were in- vestigated. Acetate buffer solutions are more suitable for extracting yttrium than citrate buffer-solutions. The ex- traction is complete at PH 7-9. The method of separating yttrium in radio-chemically pure condition is based on the extraction of its inner complex by 8-oxyquinoline at a PH Card value at which strontium does not form a complex with 8-cxy- SOV '7 8 - 4 -1 -5 7 IV. ?h( Of Y', trium n R a d -4 c - Ci em, i c 7- W. Cc-Precipitant quinoline. The re-extraction of radioactli~,e yttriur. frlrm the chloroform phase is achieve(' I,.,- j 4 L.lu--ing the solution by wealk hydrochloric acid or weak acetic acid. Detailed directins Oor extract-Ing yctrium in the form of its 8-oxyqu-nollno I L. -- I complex are given. The nethod s-..iggested is simpler and quicker than the chromatographic and the eler-trolytit: method and that of separatirg strontium in the form of nitrale. Nesmeyano-ra, af. N. Maslo-ia a.-I N. I. Yertts a1sc. partic-1- pated in the itivestiglations. There are 3 figures and 43 references, 0 of which are AS'SOMTION: Nauchno-iseleduvatellskiy irst-itut yade-~rov fi-z-l'ki Moskcvskogo go-sudarstvennogc universiteta im. M. V. LomcricsCifa (Scientific Research Institute of Nucljeax Pllhysics of M:)scow State Universit,, imeri .11. V. Lumonosov) SUB11ITTED: August 10, 1957 Card 2/2 &K, .jn~ L-M 10-65 EWT(m'/'/"'vr.WP(j )/T/E P(t)/EW '(b'P W P ACCM1011 IM i AP3WI694 8/0 4/Uv V- 8 AMTOR a' of chlori TITLEt Sorptio~.of onite IM-2 dhdI stabi -constent lity 21exes in water-.* ims ndbpL c2F thane.: i6iit SOURCE: :Mosc -IT OW-9 thivirsitet VestzAi Seriya. 2 MAmiyaq no 6 j19.64 4 10PIC indiump indium,c 4. sorption sorption kineW cationite TAM m/ Kv. 2 'ADSMACT; The qox~ticn' d'13idlui, 6kit' KU-4;fiom'vater-ethano -a I I oluticne nwriatic' e~oid- va-z- W- m er-imen--w G~is`tigit~ u#114 indi~um-.144_and calcv~; t ope- _iioti*i.V -of- the solui ti o'n- bef ore'-: and- af er_ 'lating.'the deVe6of sorption fvo~ Vie stirring.: The indium sorption as afunction of bydrochlorio acid and ethimol tewt is sh(nm in Pigs. 1-3 an -the Znolosv"80~~ The 4quilibriiia ocnotanis lkl do of the daoride oomplizea wire in water solutions and water solution-mi withW _0 ftoneud me IIA do sorlbed: by: V i snd,40~, 61 th th 55Y 801-' -FICUL's (I'Vepokhi 130 ioloi__19 are ifi6wa '04, 24 Enclosures going the ivIALtion Card 47 qr goApro so Rw ml mg Card 2/5 Mott -63 7-7_77- 2$360-' AGMSIM-M U5WI695 1 4 and 5 on the Enclosures 'show-the"Aeaorption as: a funation of P gures fea ive th -etbanol conteat -with- 5 z jo-39 mcine, , I)bsorption appeclis: io6t'. of 804 ethanol The desorPtion kl~etios otllib iaaAous*deooiTt on u i i are'~:s in Fig# 6 on the Fholosures, Orig. art. hie't '6 figurm, Nil -fizJ16'(Radiochemis ASSOCILTIONt'-Laboratoriya raAi6 i yade=4 try Laborav- -of the KII of Nuolm Pbyoi~e)7 tory ..SUBMITTEDs 204r64 )3 so VODE -No mw SOVS .002 Omms' 001 ",0 _7" cc rd 41 1 .7 Bill# Cmd 3/5 5300 65 ACCESSION NRs AP5001695 4- 7 "TU re JPTY Zir'4 (t."JilA 17:11) 211 p. IMP RUDENKO, N.P., kand.khimichoskikh nauk Methods of separating radioisotopes without a carrier. Khim.nauka i prom. 4 no.4:441-448 '59. Wn 13:8) (Isotope separation) WEEP- /I's e Or ftt b:T - 0~ -ittr tor"s sc'~aI73, 1-0 1950 to t r s 0 Tere -nor or. --anic t 3. 1 tr, 0r6 t e ~he s 0 5 A ~4 ctir.3 ley-e u olls P~, rs re~ - of c o .pe t a ~ ossibili-ty of p ~- f0rul ior. p i, t the , et als n t --- pli OU of u1 , t,~ 2 'O'l. tiorl 1e equa rar- -tr,e e-'t estab log ~ S . Th, el Uar'. j 0 r1 r ea, r so sta'nt la _10& tz Orl 'o I; 'etal 'b-j a &issocla 1~ = --t be- of tyLe Of ,Ive-,qt i 'M~. t~,.e r,- f tqe _tjol t e orrar'le Of 0 cy.tra f.,jer- - 4 c ient t he t r I-ase, n n 'Ge -O"ls reage t'a e :~ qoLrtitl-o -rtit'o" 0 Of nt CLIlk I sej Q~_-qu . ,r t,,.e rea-GE lc pra . Mee, organic 0 r,ar- and, 0 E- om?o r -JL o e c ar"Od rjo B o i~l Ac~_,tonatc-s of Yttrium and Strontium and a Method SOV/78-4;-lo-37/4o of Extr~_~ctive Senaration of Yttrium by Means of Benzoyl Acetone Mard 2/3 K1'= sLability constant of the non-charged complex; K= exLrac- tion constant of th,- cation.1 In the present paper the correct- ness of the predicted valud of (pH 1 )1.0 for the e-.traction 90 2 without carrier of yttrium is confirmed. The formation of inner complex Y-salts with benzoyl acetone and thc-ir extrac- tion with carbon tetrachloride, benzene and chloroform was in- vesti.-ated. The yttrium chlor'de was labelled with Y90 or Y91. Figure 1 gives the experimentally obtained data for logq, figure 2 the degree of the extraction in dependence on the PH . The complex compound extracted by the organic solvent 01 corresponds to the formula Y(C 6H5COCHCOCH 3)3* According to the method of D. Dyrssen and Sillen (Ref 3) the stability con- ct-n-ts of the yttriun-benzoyl acetonate were detuer.,~.ined (Table 2). On the baoio of these data a method could be devised to sepa- rate the radioactive Y90 without carrier. As can be seen from figare 2, more than 99.9~a' Y can be extracted by means Of Benzoyl Acetona-es of Yttrium and S~ron'ium and a Method %I 1 3 , !4 0 df of Yttrium by Y"eans of Benzoyl Acetone 0-100 mole benzoyl acetone, dissolved ir, CHIC130 0 H I at pH r49. As is shown in figure 5, the decomposition of the extracted yttrium90 corresponds to a high purity of the prepa- ration (more than 99.9%,~).There are 5 figures, 2 tables, and 12 references, ; of which are Soviet. SUBMITTED: September 24, 1958 Card 313 S/081/61/000/023/003/06, B108/B147 AUTHOR: Rudenko, N. P. TITLE: Production of pure carrier-free radioactive isotopes PERIODI AL: Referativnyy zhurnal. Khimiya, no. 23, 1961, 38, abstract 23B266 (Tr. Tashkentsk. konferentsii po mirn. ispollzovaniyu atomn. energii. v. 2. Tashkent, AN UzSSR, 196o, 317 - 324) TEXT: This is a survey on nuclear reactions yielding radioactive isotopes without a carrier substance, and on methods of separating these isotopes from the targets. It is shown that, by irradiation in a nuclear reactor, radioactive isotopes of 64 elements to be used as tracers can be obtained and separated without a carrier substance. The advantages and restrictions of the mostpromising methods of separating and purifying radioactive isotopes without a carrier substance, namely extraction and chromatography and also of less frequently applied methods (distillation and sublimation, electrolysis, adsorption in the form of ions anl/or ra"iocolloii,.t~, procipitation and leaching out) are described. There are 10 refererices- Card 1/2 17 VASIL-YEV, S.S.; MIKHALEVA, T.,k,.;ARUDENKO, N.P.; SEVASTYANOV, A.I.; ZAZULIDI, V.S. Long-lived isotope A126 in structural aluminum used .in a nuclear reactor. Atom. energ. 11 no.4:401-403 0 161. (MIRA 14:9) (Aluminum--Isotopes) (Nuclear reactors) Niko lay Favlovich; PASTUKHOVA, ("inaida. Vas ~, 1 lyevna; SOLDATEENKOVII, T.A.j red. [Radioactive molybdenum isotopes] Rad--oa,-,1,4vn:,re izo- topy molibdena. Moskva, Atomi7xlat, 1965. 46 1). (I.I.TitIA 18:12) ACC NRI APr,001143 SOURCE CODE: UR/0367/65/002/003/0402/0408 K.A.; Vasillyev, S.S. Sevastlyanov, A. 1. Khmo- AUTHOR: Baskova, gde*, ~N.P. Leyla, M. A. ; Shavtval6v-, L. Ya. ORG: Institute of Nucldar Physics, Moscow State University (Institut yadernoy fIzIk1 Moskovskogo gosudarstvennogo universiteta) TITLE: Investigation of the radiation of48C( SOURCE: Yadernaya fizika, v. 2, no. 3, 1965,~ 402-408 TOPIC TAGS: cadmium, beta spectrum, half life, isotope separation, indium ABSTRACT: C(?" was obtained from the reaction C&16 (d,p). As a result of the Investiga- tions conducted it Is shown that the half-life of CcP7 is about three hour CP71 4. The half-life of 50 min previously ascribed erroneously to s parently, that of Inu"'. obtained from the reaction CdL16 (d, 2n). The beta-spectrum of C~Lff(3 hr) was Investigated on a beta-spea- trometer with a magnetic lens. The upper boundaries of the partial beta-spectra have the energy of 670; 1290; 1800; and 2200 kev. The value of log ft proved to be equal to 4.9; 6.7; 6.9; and 7.6, respectively. The results presented, aA well as the investigations of the 0 Y- coincidence s made It possible to construct a decay scheme of Cdw which differs substan- v. tially from that in the literature. Authors express their gratitude to Yu. A. Vorc~~? V. S. Zazulin, N. S. Kirnichev, and M. R. Akhmed for assistance in the work. g. art. Te has: 7 figures and I tab LC-Ord ljj~LSUB CODE: 20, 18 SUBM DATE: 19Feb65 ORIG REF: 001 OTH REF: 012 'T !~7 7 -t;% UI: T K 9: Af 7-2 3 l-') 1 sk,go instituta Submitt-~i May 29j 1965- 'Moqk()v3kcjP-'lo unlve-rsit'~Aa. F iLih f7tN 1, KA EN:- 0 M. Vreoti:'Iltion of some rai-`.cacttive indicators. Vest. 'os-. un. Ser. 2: 20 no.6:83-85 N-D 1615- VT 19:1) 1. Diboratoriya radiokhim-ii Nauchno-I s sled ovate 11 skogo Instituta yarlornoy fiziki Moskovskogo universiteta. Submitted Jan. 13, 1965. RUD3,10, V.P.; KI)RDYUKEVICII, V.0. Reaction of gold with 8-mercaptoquinoline and its gravimet.ric, determination. Zhur. anal. khIm. 21 no.1:18-22 166 (',,',IRA 19:1) t imen.*L Lemonosova. 1. Moskovskly gosudars".vennyy univerS4 te L 22292-66 EW7~m)/F?"Ia(m) DTAAP DSAM 0189/657000/601/601870022 ACC NRi A0 SOURCE CODE: UR/ AUTHOR: Rudenko, N. P,; Vavra, So; Duda, 1. ORG: Laboratory of Radiochemistry, NII of Nuclear Physics, Noscow State University (Laboratoriya radiokhim,:L NII yadernoy fiziki Moskovskogo gosudarstvennogo universi- teta) TITLE: Sorption of cadmium by the ogtion exchange rosij KU-2 from aqueous-organic olutions and method of separating radioactive indium and gadmium- SOURCE: I-1oscow. Universitet. Vestnike Seriya II* Khirdya, no" 1965, 18-21* TOPIC TAGS: sorption, cadmium, ion exchange resin, Indium, radiation chemistry, radioisotope, isotope separation ABSTRACT: The ao'rpti*on of cadmium from aqueous ethanol-solutions was. IV;' studied for the cation, exchange resin KU-2 in the hydrogen, ammonium, and 8-hydroxyquinoline forms. Cadmium containing the radioactive. isotope .Cd1l5m, free of the radioactive isotopes W115 and Inll5m,,was used. The greatest sorption was observed in the case of the ammonium form of the,. ion exchange resin, at any ethanol content in solution, and the least for the hydroxyquinoline form, except in the absence of ethanol, in which the least sorption was observed for the hydrogen form. The greatest sorption was observed from solutions with the smallest (10%) content of one of the two components (water or ethanol). The capacity or the cation exchange resin with respect to cadmium from aqueous solutions was 3.30-3.20 milli- gram equivalents per gram of-KU-2-for the-ammonium and hydrogen forms. Card 1/2 -M-P ~t~lJjEc 22393-66 E IJU ACC NR. I~P013975 SOURCE CODE: UR/0189/6 5 000/002/0025/0029 1ar111O-1t:,-1_Lapitskiy, A. V.I(Deceased),- Rudenko Nt _j,"Sged, Abdoll Gavad ORG: Departmnt of Radiochega~M Moscow State University (Kafbdra radiokhimi:L Moskovskogo gosudarstvenn6go univei~H-teltiT TITIZ: Extraction of thorium, protactinium, uranium, and neptunium with the aid.of hydro~71ardne derivat37V-es-0 SOURCE: Moscow. Universitet. Vestnik. Seriya 11. Khirdya, no..2, 1965, 25-29 TOPIC TAGS: thorium, protactinium, urara*u'm, neptunium, hydroxylamine, normeta.3-lio organic derivative ABSTRACT: A description is given of -the Fesults of investigations on- the extraction of thorium, protactinium, uranium and neptunium with the aid or hydroxylamine derivatives. 11enzoyl hydroxylamine, N-benzoylphenjrl hydroxylamine and N-nitrosonaphthyl hydroxylamine were used. Thorium- 234, protactinium-233, neptunium 239 and uranium in its natural isotope mixture were used. Nexanol and chloroform were used as the organic phase. It was found that the behaviour of the elements in extraction under the :experimental conditions was different. Their reactions to-changing solu- tion pH varied considerably.. Orig. art. has: 3 figures@ jg~RJ SUB CODE: 07 SUM DATE: 06jun64 atiG itc, r. 004 OTH PZ- F: 005 Ca,d 111d' Rs AR60004Y~ SOURCE CODE: UR/0137/b~vrv-,_ AUTHORS: Vavra, -Rudenko, N. Fj~ indium. from certain aqua-organic colutions by, cation exchanger TITLE.- Sorption KU-2 SOU RCZ: Ref. zh Motallurgiya, Abso 9G173 R&F SOURCE: Sb. )nnoobmen. tekhnologiyu. M9, Nauka, 1965~ 80-83. TOPIC TAGS: ion ;.zchange., indium !10~7vi i6yj A-BSTRAGT: The s-r-ption of In from aqueous, aqua-acotone" aqua-ethanol, and aqua- ethanol-chlorofor.., solutions by the cation exchanger KU-2 was investigated. Fractically no a~-oorption of In by KU-2 occurs in nonaqueous acetone solutiona Addition of smal,t auantities of H20 to acetone causes a sharp increase in the degree I vf sorption. Ma-mum. sorption for the hydrogen form of the ion exchanger (--, 99%) i is reached at 15 ;,ol % H 0. The ammonium form of the cation exchanger sorbs In some-1 what less effectJ. .rely. increasing tho amount of water decreases sorption (in pure water, it did note exceed ,-,80%). In pure acetone, which has a low dielectric constant, the In salt is considerably less dissociated as compared with the dissociation in -uhe presence of small amounts of water, Maximum sorption in the presence of small amounts of water in solution may occur for oorption of neutral -Curd 1/2 UDCt :669.872,09 ACC NR: AP6005419 SOWICE CODE: UR/0289/65/000/003/0028/0032 AUTHOR: Rudenko, N. 1). Zhul(ovskaya, A. S. ORG- Scientific Research Institute of Nuclear Physics, Moscow State University (Naucfi~o-issledovatellskiy institut yadeenoy fiziki-Mopkovskogo gosudarmennogo V universiteta), (Blektro-fizi6heakaya laboratorlya Urallskogo politekhnicheakogo inatituta) Ijq TITLE: Use of nonaqueous solvents for separating radiolsotgv=-'I~ precipitation and leaching SOURCE: AN SSSR. Sibirskoye otdeleniye. Izvestiya. Seriya klitmicheskildi nauk, no. 3Y 1965) 28-32 TOPIC TAGS: adsorption, beryllium, lithium, sodium, magnesium, radioisotope, chemical precipitation ABSTRACT- A method was developed for separating the radioisotopes sodium-22 and beryllium-7 without a carrier by precipitating the target element (magnesitun in the case Card 1/2 UDC: 541.15+542.6.621.039.554 L 3085-66~ ACC NRs AP60254F7 SOURCE CODE: UR/()186[667008/001/0) 00 AU'Iffiilt Rudanko, Ns P*; Zhukovskaya, A* So OaG: none TITL;,: Use of nonaquoous solvents for isolation of radioactive J~ja sup 22 from irradiated magnesium SOURC,~: Radiokhimlya, v. 8, no. 1, 1966, 63-66 "OPIC TAGS: sodium, magnesium, stoichionotric mixture, radiation chem.1stry, I clicnical separation, ~herdcal precipitation, organic solvent, solubility, desorption U~CT: A method is proposed for recovering Na22 without using a carrier. .Irradiated magne3iwa was dissolved in almost a stoichiometric amount of sul- furic acid. The solution was evaporated until a film began to form and an equal or somewhat larger volume of ethanol was added. The solution was carefully stirred and the liquid with the crystalline precipitate of magnesium sulfate was decanted onto a glass filter. For more complete isolation of NaV.. the precipitate was washed five to six times with small portions of ethanol. The extent of Na22 recovery was 95~-97%- Separation of sodium from small amounts of magnesium passing into the water-ethanol solution was achieved by ion-exchange on the KU-2 cation exchange resin directly from the.water-alcohol Card 1/2 uDc: 541.123-3~:546-33.m.-546.46 /- n 5e- A -'s' -66 34- ACC NR, AP6025487 filtrate. An 0.1 N HCl solution was used in eluting the Na22. In the present, report, the authors examine the possibility of using organic solvents other than ethanol, e.g. acetone and dioxane. It was shown that the nature of the organic solvent added to precipitate nign'osium, sulfate does not affect the COMP03ition of the crystal hydrate formed. The solubility of magnesium sul- fate in ethanol, acetone, and diocane, and in their mixtures with water at 201C was determined. The desorption of Na.22 from the surface of crystalline magnesium sulfate by these solvents was studied. It was established that solutions of acetone and dioxane containing 10 - 20,19 water exceed ethanol in desorptive capacity and are preferred for recovering radioactive Na22 from a magnesium target.,' Orig. art. has: 3 tables. D-PlIS: 35,72A7 SUB CODE: 07 SUB1.1 DATC,.- 26jan65 ORIG REF: 003 OTH REF: oo6 Ca 2/2!!~` IV A 'AN -:4C -A;~ r j2- ICFA 18 :9) LAPITSK'.L-Y, A.V. [deceased]; RUDETIKO, N.P.; ABDELI GAVAD SAYED Extraction of thorium, protactinium, uranium, and neptunium by means of hydroxylamine derivatives. Vest. Mosk. un. Ser. 2: Khim. 20 no.2; 25-29 Mr-Ap 165. (MIRA 18:?) 1. Kafedra radiokhimii Moskovskogo universiteta. T MMM '01 KRYTJKOVA, L.N., KORDYUKEVICH, V.0., SOROKIN, A.A.; RUDENKO, N.P. 188 Lifetime of the 55Kev. state in the Ir nucleus..Izv. AN SSSR, Ser, fiz. 29 no.?.,1080-1091 Jl 165. 18:7) 1. Nauchno-issledovatellskiy institut yadernoy fiziki Moskovskogo gosudarstvennogo universiteta im, M.V.Lomonosova. i~ i Y) ,A t"A li n iri ar , :,I ran t n e c f r ri H a d Ik 17, e, n c) 3 9 - 1,2 Be~avlcr of pretacrAniUm, and eXtraC,; '[011 by mean-.-~ of acid VATIA, S.: `~o-p-tion of cadr-lxa by ttle jl-'2 cat-l-r-;r, Exc'-anger from g .ad-oact-ve 'ions and th,-- .-Iethnd of aep -- organic~ ol-u. L~r and cadmIum. Vest 1"osk.'vn. Ser 2: flim. 20 no.I:IF,-21 Ja-F 165. 18:31 1. D-.boratcrva ri.cliokhimAl Anstituta ,~-aclerrloy fliZ 4ki Moskovskogo universi-leta. . ~ .~ - - . I ~ ~ :1 1 - 1: "~; - t ~ .- - - . . 1, 1 - - ~ -Radioactivelisoto n germaniya) Res of-germa Radioak ivn"e izo opy 3 xoscowq Atomizdat 6 ffio" 1 c 4$ 24 po Jllilstq bil e.. 600 opies printed -physic TOPIC.TAGSs radioactiveiisot~606i-,gprmaniumj,,. m6lear- A ~,.,..'~ 'I'MPOSE AND COVERAGEt Thi6boiok3.ist-pi,'esentig--informati~ii,-~~:.illb-ir"i6chemiitic7~~- ~ of-germaniumi- the nuclear processes- Of7thwo-formation-of its-. radioactivir1sotopes and, measure thods.'..The methods of separating them from irradiated- ment, material me use of.radioactive isotopes of germapium'in' various t ypes-~of research.'are examined The booklet is intended for readers with-fundamentalA . nowledge of Tiuclsar- physics.'. ' f. the ~tse - of radio-:'.:.'.- and chemistry interested in the radiocheiiisty and problem -o -workin 4s' 'in the chemis twy active isotopes. It can be useful also to speci Ali t , Wool of germanimns its compound and an TABU OF C99ZEM (abridged Is A- Introduction -Cho Isotopes of german vai D ~Card 2 444 RON, ~eA 35 7: '-o" ACC99SION M AM59103M, d ~inl- 1w - _r u se - -separa ng radioactive- so 0861-,~of ~Itmn tm Ch. l3li :Methods of obtaining and ti - -C -rad~ em h IV* --Use-of, icactive .3,5 wh6u For"-with: gerlman Ch* V. Safety , 24- Bibliography SUB14TTM 6uB CCmf Npj OT IM MW t, M2 _ ..... . ..... Zi, 12 W rd __t the n 7- K-7T' A I SEVAST YAN"C' A I.; EUDEI I KO ) I I. P Coprecipitation of the indicator amounts of berylli-um with .Lron hydroxide. Vest. ',',osk. lm. 'Der. 2: Fhira. 20 no.1:22-24 Ja-F 165. (11-lMi 18: 3) 1. Laboratoriya radiokhiraii Tlauchno-issledovatellakogo instituta yadernoy fiziki Moskovskogo universiteta. bi 1i ty r n s a c X~ P, e. 2 1 i tuta r n--: t- , , . , -. -, , *, : . .,, , ~ :,.1141 ~ .. ~ r~ -65- -EWr(m),,. -..PRb----DIAAP -.-- -- -- -- - - - -- - . :I ~. -, ~, ~ - -L 52979 V979n65 4 j - ---- - , . ". ACCESSION M AM50098 53 '3 Introduction Cho -1 a-Radioactive eind-stAbisAi6topes of sirconixim mid nibbium .'art& their. radiometry . '1 Z Z, _4~ ' SU Isu 14JU64 _CODE (10 j SUB Np~~: . HR MW SOV t 022 O= 007 ... , 0 . 7 2 2 Card LAFIT~-;cry, FUDFN0 N.F,, ABD,;,,l,' i, t, 1. r, L c t -.' a n c f n eL nm It Yy m en 5 c, f7 dc x ya mr, e dra t I -, e Radlclchimiia 6 no.5617-619 164. (MIRA 1841) L.,"279..6!5 5 COD9 - .. ... . 77 iz(Acm v Ily u y T:!"F: KC,, 14111~,o',ny Fa%,lovic-li; %.VAS"YAN'ClV, Aic EARFOVA-, T.V,,, red. (Radicacf.il,e ber-y.Ilium isorores and BIGI liiadio- aktivnye izoterjy berillia Be7i BeIC', Moskva, A-tomizdat, l9t"4. 22 p. (MIRA 17-.6) ABDELI GAVAD "ATM; LAPITSKIY, A.V.; PUDENKO, N.P. Extraction of thorium by means of benzchydroxamic- acid; Radiokhimila 5 no.3:290-294 163. (MIRA, 16:10) (Thorium) (Benzohydroxamic acid) HALINKINA, O.M.;.,RUDENKO, N-P.. Preparation of hafnium 8-hydroxyquinolinate of a definite composition. Zhur.anal.khim. 17 no.9:1120-1121 D 1,62. (MIRA 16:2) 1. Institute of Nuclear Physics, M.V. Lomonosov Moscow State University. (HAfnium compounds) '(Quinolinol) D7,IO*O,. V.M.~ RUDENKO,,. KREWISKAYA, I.N. Mixed thorium complex with cupferron and 41-nitroso-2,21-dihydro;c)-4-methyI -5-isopropulazobenzene. Zhur.neorg.khim. 8 no-3:655-659 Mr 163. (MIRA 16:4) 1., Vaesoyuzr*-y nauchno-issledovatellskiy institat khimicheakikh re4~tivov i laboratoriya radiokhimli Nauchno-issledovatellskogo instituta yadernoy fiziki Moskovskogo gosudarstvennogo universiteta.' (Thorium compounds) (Cupferron) (Azobenzene) L 14961-63 EWP(*q)/EW(m)/BD,S AP7TC/AM--- ~JD/JG ACCESSION MI AP30036eO SM4163IM5160310M/6294 1-AUTHORSt Sayed, Abdej! Gavad Ttspitskiyj, As V.; Rudenkop No-Po mow 'TITLEs Analysis of thorium extraction by benzohydroxamicacid, SOURCEs Radiokhimiya, v. no. 31 1963, 290-294 TOPIC TAGSs thorium, benzohydroiamic acid, heynnol ABSrRACN The extraction of thorium with hexanol in, the' presence "of benzohydrox-, amic acid has been studied. It vaa shovn that the rsayi mil~i extraction vaa possible, I at a PA Of 5-2 with a yield of about 90.'The formed Icompound of thorium and !benzohydroxamic acid Th(No 3)*2HR.was determined by extraction method with hemmol. !For the comparison with the above extraction, thorium-benzohydroxamic acid com- 1pound was precipitated and extracted froman aqueous solution at a pH of about 7*' The,formed compound is confirmed by thermogTavimetric analysis, The kinetics of its thermal decomloosition have been established. A colorimetric, method has been developed for the'determination of benzohydroxamic acid by means of sodium vana- date which formes a colored complex with VO 72he authors express their grati-.' N !tude to L. G. Vlasov for his hello and valua lesuggestions." Orig. art. bass 6 graphs 1 Card DZIOWOY V.M.; ~qDENKO,.N.P.; KREMENSKAYA, I.N. Determination of the composition of the complex thoriuatlv)- oupferron-41-nitro-2)21-dixydroXY-4-methyl-#-isopropylaz6benzene.. Zhur.neorg.khim. 8 no.5sl278-1280 My 163. (MM 160) 1. Vseaoyuznyy nauchno-issledovatellskiy institut khimicheskikh reaktivov i Nauchno-isaledovatel'skiy institut yadernoy fiziki. Moskovskogo gosudarstvennogo universiteta, laboratoriya. radiokhimii. (Thorium compounds) (Cupferron) (Azobenzene) S/075/62/Ol7/ooq/oo6/oo6 E071/E436 AUTHORS: Kalinkina, OJI., Rudenko, N.P. TITLC: On the problem of preparation of hafnium 8-hydroxy- quinol.inate of a definite composition PERIODI*--AL: Zhurnal analiticheskoy khimii,' V-17, no.9, 1962, 1120-1121 TEXT: The precipitation of hafnium 8-hydroxyquinolinate usinga nascent reagent is carried out by adding an alcoholic solution of 8-hydroxyquinoline to a solution of hafnium nitrate containing oxalic acid. An increase in the pH of the solution was obtained by the decomposition of urea on heating.'.. On the basis of chemical and therniogravimetr-ic analysis the composition of the precipitate was hafnium P-hydroxyquirrolinate Hf(C9H6NO)4- There is 1 figure. ASSOCIAT16N: Moskov's"kiy gosudarstvennyy universitet im. NI.V.Lomonosova (Moscow State University imeni N.V.Lomonosov) SUBMITTED:~ April 20, 1962 Card 1/1 7!75o-66 EWT(1)/MVA(4)-4;- jjp(c~ aa I IN - - -- ALL NKs AP5025897 SOUF= OODE.- UR/0057/65/03s/olo/i8 4Q/1843 Y91 AUTHOR: Rudenko M S Tsvetkov, V.I. yy 1 5!;7 ORG: Tomsk Polytechnic Institute im. S.U.Kirev (Tbmskiy politekhnicheskiy insti- tut) TITLE., Investigation of the dielectric strength.of some liquids under the action of nanosecond voltage pulses SOUME: Zhurnal te6nicheskoy fiziki, v. 35, no. 10, 1965, 1840-1843 V111 5_ TOPIC TAGS: dielectric breakdown, water, transformer oil, nanosecond pulse -ABSTRACT: The breakdown of 50 to 500 g gaps between 2 mm diameter stainless steel electrodes in transformer oil,' doubly distilled water, and 'Itechnicalif water(conduc- tivity approximately 5 X 10-6 mho/cm) was investigated wit Ih up to 500 kV pulses with nanosec rise time and 30 nanosec duration. The gap was made part of the central qonductor of a coaxial line and the breakdown was observed with an oscilloscope. The electrodes were cleaned and examined after every 3-5 pulses, and the maximum error in measuring the gap was 10 % for the 50 Ii gap and 2 % for the 500 g gap. The results are presented as curves of mean breakdown time versus pulse voltage; breakdowns that occurred during the rise of the pulse were excluded from the average. The shape of these curves is briefly discussed and it is concluded that the discharge mechanism is electronic in nature. The technical water was found to have as high a dielectric strength in the nanosecond range as transformer oil. Water can therefore be employed Card 1 /2 7750-66 FACI~ 110, --AP5025897 as A high voltage pulse insulator in those applications where its high dielectric cons'uint would be advantageous, The author thanks Professor of Technical Sciences G -A. Vo Y *ixazl proposing the study and for discussion of the results, and V.P. Grafov f,.,r assistance in some of the experiments. Orig. art. has: 4 figures. GRIGORIYEVp V.N.; RUDENKO, N.S. Surface tension of liquid hydrogen isotopes and H2 - D2 solutions. Zhur. eksp. i teor. fiz. 47 no.102-96 Jl 164. ;i;f eggs C a 11 IF r X OJOBAVRMI XII Aill jdn 1611 Jim Q j a Le A a L IL 0.0 jr~ 00 ..Go ty at Uuld nitrogen, carbon monoxide, Atmoo and in and to depimillimce a tirmpeTature. N. S. R dL.V.Shubnikow 'hvjik.Z.SPwjduosion a f 6.-4 4 (1104).-The viviksity ra m. p. and b. p. 7 .00 W" red in a special it". ca"umled with ether at "' j 2113 (2.44M millirki") aq pHiliary, and 41, at VLLV- (I. inillilmAwn) an %rowulary starulard. The I%Anl% -oilli =69 3 fall I notwoth curves. The 1441-ing figurvo wr mb. 0 Ilf all on curve, tenip. ranxe, visctnity range. Nj: 7 ' 0 4 .9- . 2.92-1.M. CO* 7. 2.97- -g-7 7 772 =00 7 1. A.- 4, X4.2-87.3% 2-40-2.152. 0,.- Id. S4.4- A 0 so a a C. DO- Weit own). 1 8.73-1.90. it_3 ' 0 190 xo 0 of IF 0 Cl moo allAttupillLAL LiTf#Att, CLASUMATICs go S ",&" U a AT 00 Is 9 7 It 1 W K r[ ff ' 0 0 N - If X 16 W 4 1 and 0 0 0 0 0 9 0 0 0 0 0 0 1 o 0 a a 0 0 0 0 o 0 0 9 a a 0 9 0 0 0 0 0 0 Ojo 0 0 * 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 4 a 0 a 0 6 * 0 0 * V ifa it 0 "Mull " I's jk C-.k IF a a I L , L-L-I , I H., 1.9 21 A "no Q-?161 4.0 of" Mlet 1110CS114% A-& 4887. Viscosities, of Uquid -Methme, and Ethylene. N. S__ Rud k 0 L W on o-0 . . Schubnikaw. PAys. ZeW. d. 544i& 179-194, 1936. A G#ma,,,-A method previtmly used for the (leturminutitm Of the viscosities of liquid N. Ow A. anti CO [we Abstract 617 (1036)1 Is now applied to liquid Cit., anti Ilquid CH,. , The results \Jor the six liquids am shown graphically. The viscooity of CII, varies f~prn 0-00210 to 0-00098 c.g.s. units, Ova thetemperature range 9W K. _W III" K., whild that VfCAhrv~u* from 0-00522 to 0:00178 over the range Ito* K.to IW:K.. R. W. P. a Me coo roe Igoe see Aso SLA &ETALLU*tKAL LITERATtAl ~LASSWKATICO see sum tt"An, xWe i VISAII aw GNV &$I t _ _ T T r An II a I go 4 2 U Is A' 10 'J it it or K no I ; Ia It cc a 0 0 0 0 0 0 a 0 0 0 0 0 a C 0 0 0 I y of "I L V, &I, lee at if Plum, no., Jung, 03r-gjl!-q of N#. CO, A, fe aI tM rIA. awl qff bay* bion dafertntn,4 at vsr4oua 4,w fe In = 61W r, IUMMM repwky'vith (1tvM&M 7 COO in temp.. but mma1w < t6t for HO. J. W.& lee 06 too to 0 :01fivI4 oil Ogg K 00 V: 0000000 0 0 9 0 0 0 0900 ofeesee 0 0 a 0 0 0 I c 0 EF 6 to X I. A, b 0 1% a S T vv 7 C I u F It D 31 is L it C). AT IS I'S ?n it A Ll I T I a OR on 4F r 1,4i supwij l z 00 Sq pagund U10 'Ibaqum 01 HOVX Pu' 00 %~ lum, p PUT 'uz +'jla H13 moij cwvov HO 1 . .9 # Wli -t- H 93H UOAJPO ON HN tu"N "Oulvm ' ' Mil tuat) *0 OMQ p -dead oql-(gLg--iw Cl 00 0 mana 10 .,c, 00 *ry 00 00 00 ir T OUR ol ton Ilm oolaxiln" ff K R u u 7 *1 11 h 91 U (1 11 N , i, min'takto is a's - - - - - - v 41 6 & ii, f. . . . . . . A A Is 6 111 M S 2 Is 0 0 a 0 0 0 0 9 0 1 is 0 1 ! 0 0 0 0 0 0 0 $ 0 # 0 0 0 0 0 *10 0 0 0 0 0 0 * 0 0 I 1 0 f & . to If 12 11 w it 16 it its to a Is As 34 A Is Da 14 111 11 U Is it a It U4 0 a if U if wove A 4 G A " I. G 4 1 v T , , j , A AA me (A ta k t I I , I . - . . --, it, "V101 44 0 Viscosity of liquid oxygen, nitrogen. methane, ethylis 11411 and sit. WRudrgtk ~ J. Eirpil. Thterpt. Phyl (U. S. -00 Z 118-141(11919JI.-Ily inearis of a su")Qed ro- 000 tatitix c1linder the visositirs of ga-es ~rk- mea'~Uml at =00 00 itilm rum the normal It. It. neatly tu the crit. temp.,' SwPine valuels fiturul for q X 106 are: (h. IVA at "o 40 9.1-5 at 11)4.2'K.: N., Mm, 77.41, 7.4. 111.7'. Off. roe 2KI.W*; air, 13.2. 90.1% 8.0-5. I%A*. The.q.temp- too curves are wmi-hyperbotic with re3pect to the ates. go F. H. Rashmann t;o 0 :00 0 0 1111111110 U00 2:0 0 111-ILA MITALLURGXALLITERAILOICLAZUFKATICP Clog Ito 0 61 E E,!11110-1 1,11till ow a-- M-- I An L I a FW 0 0 4 1 If to 9 a a 3 0 1 U tretirsvic K a 01 a of a ar It ii Is I in 0 0 0 0 0 0 0 0 * 0 6 o o o 0 o 6 a a 0 0 o 0 o 6 0 0 o 0 0 0 0 0 0 0 0 0 o 10 0 0 0 0 0 0 0 0 0 0 0 a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 OV 0 0 0 0 0 It Is 0 is Is 36 It mpg 41 atfulace 4 1 1 t a It 12 1) u is 16 it 11 It A A A C_ IL I r M I I L-A, & k 1. It- F. a I S 1, IF %.-DP _u_p'_A _t' _t_ 9 J_ A If A.0 "'0 COO,.$ POICc1liff A-0 P&MIFY05 7W., - ` -0 0 Compressibility of hydrogen of low tomporatures. S. A ZhIllilllyll 421-1 S. 5, muilvilit" J. E41411 1hf.'W 1'k,-. I U.S.S.R.) 16, wet, 6AA I IIIA"le OU 11 1mrifie'l by frerzing anti with pressures accurAte within O.Irl ks./ul. Cris. alld letiliv voll't Wilson is. I Oil the ornspir"mbilitirs (A 11 VT. 1. (1) Or -rr,w i, ill"! liver Drtlli. d I Are tallt'llAtnt Will I'll-ItC11 111 1"111, ill lli~xmrmurr 1, up tit 1(44' kjj_'*tJ' evil.. at shier Iritil". '%', II , , 7,7, au,l ill) 41' K ~; all shirr i-th-mint- luty A mill I see at 7P), M. 411-1 N) alm., "It.; the I from straph) are 0-3S. (1,A), asul ONO. re4li. livywid fill. inin.. the iurtfirrinit riv very orarly linearly. wills difft-r. 460 rtit %liolwlt. hidicalinst tibil(i in the rittit. Ill ittirrimil I- 0 J, coo poil,ims AIM attrueti,mi. SOITI.-Il 1141A~ At I;.*'.lI*K. I!' 1 it 1. .10). 1. $1.1.11. 1111I.A. -Url it. toi.1,4I Lit, v"... I rose at 77,7'k. 0: -00 P - ILI, IVI.5, I-15A, POP. 953.0, 1 - ilAr!7st, IPAJNI~W. JAM, 3.4.T-'O; at tit).6"K. P - 7.1. O.S. -N.il. see _14)5.0. 101.11.0. 1 - I.OlCti, O,VO-r, 0.9727. .7175, 3."Or. The three iuItherni% iuterm-et title ill- 00 0 other. The depanure front ideal-gxi bt-haviur is Inti't Are 0 priontmantrli at (V).O*K. at which temp. the It i% (4r frIlln luml.)Kellews in phase. N. vwii see 00 =00 ISO* 00 zi 00 1, All S L A PITALLUPIGICAL LITIERATIM9 CLASSIFKATIGh 0 0 I w ..- - - 1 11 . . - - : _ "; '80 400 8 -1 ire & Imid4ij .41 0. " off --.t- I 11(p 411111111 CK (PIT Lit 1 0 , I I I lu a if a I It Is 5 All 0 3 9 V U Is IF 00 Is KX IT, 0 a W K ait It K KW a r 1A An I 0 0 0 0 0 0 0 0 00 411110 0 0 0 0 0 IS 0 0 09 0 * 0 a 0 0 0 0 0 0 0 0 0!0 0 0 0 0 0 0 0 a 0 0 0 * 0 0 IS 0 0 0 0 0 0 0 0 0 0 0 0 0 6 ~'USSP/Physicff Sep 48 Gases, Liquefied Viscosity "Malecular'Weight, Density and Viscosity of Liouefled Gases X" N. S. Rudenko, Phys Tech Inst, Aced Sol USSR,' 3 3/4 pp "Zhur Tekh Fiz" Vol XVIII, No 9 Shows that viscosity of liciuefied gas varies vith tem- perature according to a linear law. The ratio eonst holds good at various reduced temperatures4 Introduces concept of "critical viscosity" and obtains. empirical eauation canneoting reduned temperature 32/kgTlo4 USSR/Physice (Contd). Sep 46 and reduced viscosity. Establishes that connection between densitIy and viscosity Is linear only vithin narrow temperature interval near the boiling point. Submitted 14 Apr 48. -;P/4 9TIO4 C7 RUDENKO, N. S. 0',* Un at low B.I. 11-~-kin, Lazft~r'-Vy and N.3. PuclenkQ. Dokl.,)-d,,r Akarl. Mauk 601, 773-6 (19~9), - 331nfle cz- of Sn at ystals .20K show ve:7 strongly the de Raao-van Alohen effect of periodic variation of the diamagnetic moment with the magnetic field, ori;-~ inally eatablished for 2i, but subsequently observed also for Zn (Marcus,C."'. 411 Z018c). This behavior of Sn is closely related to the anomalies of the V'ariation of the elec. resistance in a magnetic field )cf.preceding abstr.) and to the Schubnikow-de Haas effect Of Periodic variation of the elec. re- sists-nce in a ia.onetic field. By measurements of the couple actin-q on a crystal placed in a homogeneous magnetic field, the difference of the mag- netic suseentibilities along the main axis and peroendicular thereto, for a crystal With its quRternar7f Fucis lvii,7 in the nlane of the field, decreases by a factor of " between 293 and 2601C . A complex periodicity of these su- ceptibiliiies appeare / 0. -when the magnetic vec- d at -,. 2 The effect is max. tor is close to th,, quaternary axis. The period and the amplitude of the oscillations increase with Ht as for Bi and Zu. In the range of H= 8000- 120001 th,~ fi-c-quenry of the oscillations is much areater for Sn,than Bi or Zn. By analysis oV the froquencies, the no. of frae electrons per atom, re- suonsible for the de flaas-van Alphen effect, in about times groater than In Bi or -7n. For Bi periodicity of the ma.-netic susceptibility was observed also in the case of the trigonal gis perpendicular to the magnetic field, con- tra*r to Schoenberg (C.t. 33, 4837 ). A magnetic periodicity effect was ob- ys'als of Be. served also in sinale cr N. Thon RUDENKOY I P-2 14 ',A tio, i~;L,,N. OTC,: ~l !s :c-,r lie ihe io Iofl n,-1 t. vp arr; ;,1:(7 Ohi~lv:jbj~ 1% 4t 2 G I-or Cd 0 nnO 01~, in.-:- nufkcli njOy blo-4 gt~: Ind USSR/Physics-Viscosity Jun 50 Nitrogen "Temperature Dependence of' Viscosity of Liquefied Nitrogen and Argon for Constant Density," B. 1. Berkin, N. S. Rudenko, Physicotech Inst, Aced Sci Ukrainian SSR "Zhur Eksper i Teoret Fiz" Vol XX, No 6, PP 523-526 Viscosimeter for meastiring viscosity.of liquids and gases at constant density for wide range of temperatures has been developed and constructed. Measures viscosity of N2 and A betweon solidification point and 30& K. Establishes complex relation between their viscosities and temperature for constant density. Submitted 26 Dee 49. PA 163T90 -RUDENKO, N. 3-. Verkin, B. I., Lazarev, B. G. and Rudenko, N. S. Magnetic properties of metals at low temperatures I. The periodic change in the magnetic susceptibility of monocrystals of cadmium, beryllium, magnesium, tin and indium depending on the tension of the magnetic field. Page 995. Physico-Technical Inst. Acad. of Sci., Ukr. SSR. March 30, 1950. SO: Journal of Experimental and Theoretical Physics, Vol. 20, No. 1L November 1950a RUDMOO N. S. USSR/Physica - crystals 1 Jul 50 Magnetic Properties "Crystallographic Anisotropy of the de Haas-van Alphen Effect," B. 1. Berkin, B. G. Lazarev,, N. S. Rudenko, Physicotech Inst, Acad Sau Ukrainian SSR, KharIkov I'Dok Ak Nauk SSSR,11 Vol LXXIII, No 1, pp 59-62 Studied anisotropy of magnetic properties in base plane of Zn and Be monocrystals at low temperatures of liquid H and He in field of 3,000 to 14,500 oersteds. Established new properties of do Haas-van Alphen Effect in these metals. Graphs show couple acting on monocrystal versus axes of crystal. Submitted 3 May 50 by Acad S. I. Vavilov. 166T98 RUDEMKO, -N.- S Magnetic oronertieu of antimony Alow temoeraturee. B. 1. Verkin, La-zarev ~nd-,N. S. Rudenko (11hys. Tech. Inst. Acad. Sci. Ukr. S.S.R., Kharkov). Zhur. Eksptl. Teoret. Fiz. 21, 658-9(1951); cf- C.A. 45, 93181-- In single crystals of Sb, suspended with the 3rd-order sy=etry axis perpendicular to the suspension axle, and one of the binary axes along the suspension, periodic , , variation of 4X ~Xj - XL (difference of magnetic susceptibilities parallel and per-oendiculbr to the trigonDl axis) with the mefgetic field H (measured by the couple acting on the suspended crystal in a homogeneous mrgnetic field,. forming an angler?with the 3rd-order symmetry axis:ir- the horizontal plane) I manifesto itself only weakly at 4.20K., but is distinct at 2.040 K.; at V 530, the effect begins to appear at H -9500 oersteds, and the amplitude of the oscillations increases with H, becoming 150 oersteds at H= 11.000, and 250 oersteds at H 14,000. At const- H - 13,400 the oscillations of the couple are large aroundqO 450, and diminish towards99= 00 and 900. Shoenbergis (C.A.44,. 5165g) repeated failure to detect the effect in Sb at 1.40K. could be due either to insufficient R or to too large intervals. N. Thon S. u8zii/Physics - 1,ow-yeMerature btudies "MagnetIc Fropertles of 4"crcurj at Low Tezrierat-ares," Ver'.c;Ln,, L. G. Lazarevp S. !W- entm r. P!Zrs-Tach Inst.# Acad Sci Uk ninian SM, Martkov "Dok Ak NnOk SSM" Vol LXXXj. 'b 1 pp 25.. 46 Discusses the periodic c1haractor of the dopardence of Uio differmce of the main specific susceptibilities of It mnocr-ystals upon the external field atrenoth 11 for various low torips. States that foreign autImrs have failed to note this periodicity in t1teir e3qjta despite their attainins-r- low anough tcrpas, and high f Ield strenrths. 3ubnitted 21 Junt 51 by Acad '11-1. A. Leontovich PA 221V4 AUTHORS: Grigor'~~V5, V.N., Kan, Ta.S., Rudenko, N.S., 56-3-4/59 Safronov, B.G. TITLE: Variation of Isotopic Composition of Evaporated Mercury. (Izmeneniye izotopicheskogo sostava rtuti pri isparenii) PERIODICAL: Zhurnal Eksperim. i Teoret. Fiziki, 1957, 701- 33, Nr 3, PP- 576-58o (USSR) ABSTRACT: The variation of the isotopic ratio of the isotopes Hg-198 to Hg-204 was determined in the most different evaporation para- meters (e.g.tfrom 70 to 2700 C) by means of the mass spectrometers MC-2 and MC-4. It was determined that a low evaporation velocity exercises a special influence on the evaporation kinetics. The relative vapor pressure difference between the isotopes Hg-198 and Hg-204 can be given from the results: for t - -200 C A p/ 2. jo-3 for t = 2000 C Z~k-Zp 8.10-4 There are 4 figures, 3 tables, and 4 Slavic references. ASSOCIATION; Physical-Techaical Institute AN of thez.Ukkainiaif4SSR ).. (Fizik6-tekhnicheskiy institut Akademii nauk Ukrainskoy SSR) SUBMITTED: March 13, 1957 AVAILABLE: Library of Congress Card 1/1 A- it L) AUT-ffORSt* Bogoyavlenskiy,I.V., Grigorlyev, V.N., Rudenko,H.S., 56-3-5/59. Dolgopolov, D.G. TITLE: Modification of the Mercury Isotope Composition in the Ilectric Field.of a Constant Current. (Izmeneniye izotopicheskogo sostava rtuti v elektricheskom pole postoyannogo toka) PERIODICAL: Zhurnal EksperimA Teoret.Fiziki, 1957, Vol- 33, Nr 3, PP. 581-587. (USSR) ABSTRACT: In a capillary the dependence in the isotopic composition of liquid Hg on the time needed for the passage of a constant current at 41 _+ + 20C and -10 + 30C is investigated. The time of current passage va- 7ied from a minimum of 34o h to a maximum of 18oo h. Further , the concentration of isotopes along the electric field and the dependence of isotope composition at the cathode upon the amounts of the applied voltage were investigated. The following was found for the ion mobility'~~'//"-: T in 0C '^114t' (a. L ~16 . MIA M 45 1,1.10-3 0 73-10-1 115 1,3.1o-3 o:a6.1o_1 There are 5 figures, I table and 4 Slavic references. Carcl 1/2 Idod-if ication of the Mercury isotope Composition in the Electric Field 56-3-5/59 o~ a Constant Current. ASSOCIATION: Physical-Technical Institute AN of the UkrdirdanSM(Fiziko-tekhnich- eskiy institut Lkademii nauk Ukrainskoy SSRT_ SUBMITTED: March 13, 1957 AVAILABLE: Library of Congress. Card 2/2 a T 10 7~O AU'PH ORS Bla~;oy; PI.P. and kudenkc, TITII~I; -, Density of the Liquefied ~a~! Solutions ii~ -0 A - 0 , (PlotnoOtl :rast-,roz~c.-T o-zh--'--l'-Leru2Ykh Faz,--t-.r 195L-S, Ur E., pp l4c'--151 A i Ti A.,T Dens4.ties of solutior,.~: of liquid r,%- JE~3uz argon, e-. to ar-- of great int,~~r-c:st, I i r~-l I E C Ig3 -.1e S and ".'hei T, a-re the. Sixplest za s llquids,~ TL1 ,:, ap. papa l-.4 3 us e t den. sitie s is sh 7ijAn i-r, F:I- I A T.),P. 4 F r ( -L wi0i a long narrow t.,ube (2) war, pllacavd- in. a -iessel .1 -, ~tomae:;ted 1-y 'a narrow iaith a vrindlux. Tlae py3n-,-.)me~'e.-, wa tube to a -t-luem-.3statted (3)" a manc-m-'ter and an auxill-ary bu-1101 -T Aeiasitlly was Tax. a s-red lie by filling the apparatus with mae of -~~Le 3cmponents at a pre s sulve P, avd addiiaiE the se-:~ond at i. Prc-sa,.'I'i~ P2. Tlc-e ~:.ompn,3it;-On -was octained f rom the --,ralues -.)f Pl. and P--. To zix ths, tllio gg-ase-:- ig:r-; ' Card 1/4 'U'llem thoroughly the aulthoEs zondsns4--d --e--svai~orared