SCIENTIFIC INFORMATION REPORT

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CIA-RDP82-00141R000100340001-6
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July 3, 1959
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L.-I PW .4 3JL0 . Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 PB 131891 T-25 C,611Y CENTRAL' INTELLIGENCE AGENCY SCIENTIFIC INFORMATION REPORT 3 July 1959 Distributed Only By U.S. DEPARTMENT OF COMMERCE OFFICE OF TECHNICAL SERVICES WASHINGTON 25, D.C. f ; wc92!' ' -COP JJ Issued semi-monthly. Annual subscription $28.00 ($4 additional for I p / /J foreign mailing). Single copy $2.75. -~~uns~alcL?. ~" I Approved For Release 1999/09/08: CIA-RDP82-00141 R000100340001xf 90,r Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Use of funds for printing this publication approved by the Director of the Bureau of the Budget July 31, 195& Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 PLEASE NOTE This report presents unevaluated information extracted .from recently received publications of the USSR, Eastern Europe, and China. The information selected is intended to indicate current scientific developments and activities in the USSR, in the Sino- Soviet Orbit countries, and in Yugoslavia, and is disseminated as an aid to United States Government research. SCIENTIFIC INFORMATION REPORT Table of Contents Page I. Chemistry Fuels and Propellants 1 Geochemistry 2 Industrial Chemistry 3 Inorganic Chemistry 10 Nuclear Fuels and Reactor Construction Materials 12 Organic Chemistry 20 Radiation Chemistry 24+ Miscellaneous 26 II. Electronics 27 Communications 27 Components 29 Computers and Automation 31 Instruments and Equipment 35 Radar 36 III. Engineering 38 IV. Mathematics 42 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Page 49 Antibiotics 49 Aviation Medicine (see under Physiology) Bacteriology 52 Epidemiology 54 Helminthology 56 Immunology and Therapy 57 Oncology 62 Pharmacology and Toxicology 64 Physiology 72 Radiology 75 Veterinary Medicine 76 Miscellaneous 80 VI. Metallurgy 85 VII. Physics 89 Atomic and Molecular Physics 89 Cosmic Rays 89 Mechanics 91 Nuclear Physics 95 Solid State Physics 105 Theoretical and. Experimental Physics 106 VIII. Miscellaneous Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 F-cols and Propellants 1. Effect of Some PhosphoniF;-Containing Compounds On the Stability of Mineral Oil To Oxidation. "The Effect of Tetraa;kyld.iomides and Dipiperidides of Unsaturated Phosphinic Acids on the Antioxidation Properties of Mineral Oil," by K. K. Papok, K. N. Anisimov, B. S. Zuseva and N. Ye. Folobova, Institute of Organoelemental Compounds, Academy of Sciences USSR; Leningrad, Zhurnal Prikladnoy Khimii, Vol 32, No 2, Feb 59, pp 358-363 In this report results are presented of the study of the effect of diamides and dipiperidides of unsaturated phosphinic acids on the stability of MS-20 oil to oxidation. Compounds of the following types were synthe- sized for purposes of the investigation: ROCH =1 CHPO(NR2)2; ROCH CHPO N/CH 2 CH 'CF.I CH2 - J,H2 2 2 IOCH2 - CH2 - 0 - CH = C.YPO(NR2)2, RCH;,= CHPO(NR2)2; ROCH2 - CH2 - 0 - CH - CHPO N iC2 - CH2.\ CH2 ; CH2 -- CH2 j2 where R is equal to CH3, Cr15, C3H~, C1H9 or C6H5. The constants of the synthesized compounds including the boiling point, the refractive index, specific gravity, and their effects as shown by the thermal oxidation index, the volatility index, the active fraction index and the resin formation index of the oil are presented in four tables. The best antioxid.ation properties were exhibited by dipepirididedia- mides of unsaturated phosphinic acids; as a result of the inclusion of the /CH22\ Na CH2 to the compounds their antioxidation CH2 - CH2 2 properties are increased. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 The introduction of phenyl and phenoxy groups increases the antioxi- dution propc:rf;iuu of tet,.raethyldiumides but does not have any effect on tf:.etrabutylcliwnide rand d:Lpiperidid.uddatnide compounds. The anti.oxidation properties are decreased in tetraethyldiamides and tetrabutyldicunides when the length of the carbon radical in the group (I,IR2)2 is increased from C2 to cif. Tetraalkyldiamides and piperidides of unsaturated phosphinic acids have bettor antioxidation properties than esters of'unsaturated phos- phinic acids. Geochemistr1 2. Publication of New Periodical on Geology of Ore Deposits "From the Editorial Board," by A. G., Betekhtin, chic, editor; Moscow, Geologiya Rudnykh Mestorozhdeniy, No 1, Jan/ Feb 59, PP 3 In connection with the current Seven-Year Plan, the extent of geological prospecting activities in the USSR will be increased by approximately 67%. The greatest increases will be in prospecting for petroleum and natural gas and also for deposits of rich and easily concentrated ores of ferrous and nonferrous metals located in regions that are of economic advantage from the standpoint of industrial developments. To expedite work that will have to be done in connection with the ex- pansion of available supplies of mineral raw materials the new journal must contribute in every possible way to the advancement of theoretical knowledge and of scientific research done by geological institutions of the USSR in various fields related to ore deposits. More specifically, the following types of activity will be of importance:' discussion of scientific progress in different fields of the geology of ore.deposits (with reference to ores containing metals, nonmetals), and rare and dispersed elements); treatment of theoretical problems in the principal fields of science; general treatment of problems pertaining to the formation of ore deposits; and publication'of new factual data that are of importance for the understanding of processes of ore formation. The general-program of the journal.. is indicated by the following classifi-. cation of material that will be published in it: (1) Problems pertaining to the regularities underlying processes of ore formation and location of deposits in ore-bearing regions; characteristics of metallogenic provinces and the geological structure of ore fields including the structure of individual deposits; Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 (2) Theoretical problems encountered in the study of ore deposits; (3) Probl,_ms pertaining to the development of methods for pros- pecting and investigating ore deposits; (t) The most important results obtained in the mineralogical in- vestigation of ores; (5) The results of experimental work dealing with conditions under which ores form; (6) Reviews of progress made outside of the USSR comprising infor- mation on scientific work in the field of the geology of ore deposits carried out in countries of the people;'s democracies and capitalistic countries. [SIR Note: The periodical is published by the Institute of the Geology of Mineral Deposits, Petrography, Mineralogy, and Geochemistry, Academy of Sciences USSR. The address of the institute is Staromonetnyy Pereulok 35, Moscow V-17. The Board of Editors consists of Academician A. G. Betekhtin, chief editor; 0. D. Levitskiy, Corresponding Member Academy of Sciences USSR, deputy chief editor; F. I. Vol'fson, Doctor of Geologico-Minerological Sciences; G. A. Sokolov, Doctor of Geologico- Mineralogical Sciences; P. M. Tatarinov, Corresponding Member Academy of Sciences USSR; Ye. T. Shatalov, Doctor of Geologico-Mineralogical Sciences; F. K. Shipulin, Doctor of Geologico-Mineralogical Sciences; A. D. Genkin, Candidate of Geologico-Mineralogical Sciences, executive secretary. A table of contents in English is given at the end of the issue. There are no English-language abstracts]. Industrial Chemistry 3. More Extensive Application of Ultrasound in USSR Chemical Industry "Decision:s of the 21st Congress of the CPSU -- A Challenging Program for Workers in the Field of Chemical Machine Building" (unsigned article); Moscow, Khimicheskoye Mashinostro eniye, No 2, Mar-Apr 59, pp 1-3 In connection with the expansion of chemical machine construction foreseen under the current Seven-Year Plan, new equipment for the chemical industry must be developed in -the design and operation of which the latest achievements of science and technology will be utilized. This refers par- ticularly to methods based on the application of radioelectronics, semi- conductors, ultrasound, radioactive isotopes, etc. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Chemical equipment will have to be developed which utilizes ultra- sound to improv'.: the efficiency of extraction, mixing of liquid non- homogeneous systems, clarification of liquids by accelerating the precipi- tation of suspended particles, separation of emulsions, and many similar processes in chemical technology. One must also introduce into chemical technology advanced methods for the drying and calcination of chemical products suspended with{n a layer. The conditions under which chemical equipment operates (exposure to corrosive media, a wide range of operating temperatures, and an extensive range of pressures from high vacuum to 2000 atmospheres) put new demands to construction materials and protective coatings for these materials. It will be necessary to expand the production of high-strength acid- resistant steels, clad ("two-layer") steels, titanium, tantalum, niobium, and other metals as well as alloys. In order to introduce successfully into chemical machine building the new metals and alloys that are to be used as construction materials, workers in the field of chemical machine building will have to develop novel methods of welding, cutting, treatment under pressure, etc. l+. Development of Cyclone Method "Results of the Scientific Activity of the Academy of Sciences Kazakh SSR During 1958," by Academician Sh. Ch. Chokin, Academy of Sciences Kazakh SSR; Alma-Ata, Vestnik Akademii Nauk Kazakh- skoy SSR, Vol 15, No 4 (169), Apr 59, PP 3-25 The Institute of Metallurgy and Enrichment, Academy of Sciences Kazakh SSR, has expanded work on the metallurgy of nonferrous and rare metals. In work done jointly with the Power Institute, it has successfully investigated the application of cyclone smelting in nonferrous metallurgy. During 1958, the institute achieved reproducible conditions in the roasting and smelting of copper concentrates in the suspended state in work conducted at the Balkhash Copper Plant. The copper matte which is produced contains 30-60% of copper; i.e., the efficiency of the new process exceeds that of the conventional conversion in reverberatory furnaces by a factor of 1.5. The Institute of Chemical Sciences, Academy of Sciences Kazakh SSR, has conducted on an experimental basis conversion of Karatau phosphorites by the cyclone method. The melted magnesium phosphates produced by this method do not contain any fluorine and are superior in quality to ordinary superphosphate and thermal phosphate. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Puulyomidus Derived From Aromatic Diamines and Adipic Acid "Synthesis and Investigation of Mixed Polyamides Derived From Aromatic Diamines and Adipic Acid," by I. P. Losev, 0. Ya. Fedotova, M. A. Askarov, and L. N. Sedov, Chair of Technology of High-Molecular Compounds, Moscow Chemicotechnological Insti= tute imeni D. I. Mendeleyev; Moscow, Nauchnyye Doklady Vysshey Shkoly - Khimiya I Khimicheskaya Tekbnologiyaa, No 2, Mar 59, pp 159-161 'Three binary systems were investigated which consisted of mixed polya- mides derived from 4,4'-diamino-3,3'-dimethyldipheny1methane, its N,N' -diethyl-dipropyl-, and dibutylderivatives, and adipic acid. It was established that the size of the alkyl radical in the amino-groups of the diamine has an effect on the properties of the products obtained. Two types of binary mixed polyamides were obtained starting with AG-salt, 4,4'-diamino- 3,3'-dimethyldiphenylmethane, its N,N'-diethylderivative, and adipic acid. The dependence between the melting point of the mixed polyamides and their composition was investigated. 6. Plastic From Furfural and Furfuryl Alcohol "A Thermosetting Resin From Furfural and Furfuryl Alcohol," by A. Abduvaliyev, N. Kh. Khayrutdinova, A. G. Andreyev, and A. S. Sultanov, Institute of Chemistry, Academy of Sciences Uzbek SSR; Tashkent, Uzbekskiy Khimicheskiy Zhurnal, No 4, Sep/Oct 58, pp 53-57 On the basis of the experimental work described, it is concluded that a thermosetting resin can be produced from furfural and furfuryl alcohol combined in quantities corresponding to a molecular ratio of 1:2. The resin is formed under the catalytic effect produced by a 3% admixture of maleic anhydride. The characteristics of the resin obtained make it suitable for application as an insulation varnish. Furfuryl acetal resin is readily com- patible with silicone varnish. On being combined with silicone varnish it is suitable as a special adhesive and varnish fo.; applications in the cable industry. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 V. V. Korshak's Work on Organoelemental Polymers, Synthetic Fibers, and Poi ycond nsa Lion "V. V. Korshak" (unsigned article); Moscow, Vysokomolekul am ye So edineniya, Vol 1, No 1, Jan 59 (published in April 1959), pp 164-165 On the occasion of V. V. Korshak's 50th birthday in January 1959, a review is given of the activity of this prominent scientist, who is known because of his research in the field of the synthesis of high-molecular compounds. Korshak was admitted in 1927 to the Moscow Chemi cote chnologi cal Institute imeni Mendeleyev. After completion of a course at the institute, he received an aspirantship and worked under the direction of Academician P. P. Shorygin, who at that time began extended investigations in the fields of cellulose chemistry and of the synthesis of high-molecular compounds. After completion of the aspirantship, Korshak remained as an instructor at the Chemicotechnological Institute. At the same time, he continued his re- search work in the capacity of aspirant and candidate for a doctor's degree at the Institute of Organic Chemistry, Academy of Sciences USSR. After the death of Academician Shorygin, he became leader of t:~ group working on high- molecular compounds at the Institute of Organic Chemistry. In 1941, the degree of a Doctor of Chemical Sciences was conferred on Korshak. During World War II, Korshak did organizational and party work., combin- ing this work with pedagogical and scientific activities. In 1946, Korshak became head of the Laboratory of High-Molecular Compounds of the Institute of Organic Chemistry, Academy of Sciences USSR. This laboratory was later reorganized into the Division of High-Molecular Compounds of the Institute of Organoelemental Compounds. During the past 10 years, Korshak has been deputy director of t.ie Institute of Organoelemental Compounds. In 1953, Korshak was elected Corresponding Member of the Academy of Sciences USSR in the special field of the chemistry of high-molecular com- pounds. Korshak's scientific activity is highly diversified. His principal investigations are on Friedel-Crafts reactions, polycondensation, and polymerization. During recent years, he has conducted work on the synthesis of organoelemental monomers and polymers. He has investigated the basic relationships underlying the reactions of linear polycondensation and has synthesized a great n=ber of ploymers of different types by applying reactions of this type. Systematic investigation of the dependence of properties of polyesters and polyamides on their chemi- cal structure enabled him to derive important general laws. Technological procedures for the production of such important fiber-forming polymers as -6- Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 rind 7.av;1n ,,.., t.? devcluped under his direction. Korshak also conducted ! :~tii; rt .ionsc ;rH H-lr the purpose of clarifying the effect of the structure r;r.~ncrncr;: ',)ri tl:::f..r capability to polymerize either by the radical or the u:ic rnechanl sm. lie synthesized a number of polymers containing phosphorus, icon, gei:rnanitun, boron, and many other inorganic elements. He published rn..r than 200 +cient.ifi c works, including widely used monographs on the a'/nthL'nis and investigation of high-molecular compounds, which have been t r?arro sated, into many foreign languagc,r~ . Korshak. is chief editor of U spek'ii Khimii and a member of various acc+.riumic and intcrinstitutional commissions For a great number of years, Li.. has been professor at the Moscow Chemicotechnological Institute imeni Mendeleyev.. In his capacity as instructor he trained hundreds of engineers t,nd scores of highly qualified scientists on the Candidate of Sciences and Doctor of Sciences levels. The Soviet government gave recognition to the valuable nature of Korshak's activity by awarding to him three decora- tions, several meials, and two Stalin prizes in the field of chemical sciences. c3. Some Papers on Glass Presented at Eighth Mendeleyev Congress "The Science of Glass at the Eighth Mendeleyev Congress" (unsigned article); Moscow, Steklo i Keranika, Vol 16, No 5, May 5Q, pp 1-4 Thirty papers were presented in the Section of Chemistry and Technology of Glass at the Eighth Mendeleyev Congress, held in the second half of March 1959 at Moscow. A communication by V. V. Vargin and G. 0. Karapetyan (State Optical Institute) dealt with the absorption spectra, luminescence, and photo- chemical properties of glasses containing cerium. The authors of the report established that glasses containing cerium exhibit a considerable resistance toward the effect of ionizing radiation and luminesce under the action of gamma radiation, X rays, and ultraviolet rays. Measurements of absorption and work on the luminescence of glasses con- taining cerium established that both trivalent and tetravalent cerium are present in. glasses of this type. In borosilicate glasses which have a high content of B2 03 or R2 0 and in borate glasses all the cerium present is in the tetravalent state. In phosphate glasses the equilibrium is displaced toward trivalent cerium... Generally speaking, an increase in the concentra- tion of basic oxides in t.e glass contributes to a transfer of the cerium W into the tetravalent state. The investigation that has been carried out contributes to an under- stand-ing of the mechanism of the protective effect exerted by cerium in glasses. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 (itatu Optical Institute) reported on a new method of glass and of silicates by high-frequency 'U:'r"..nts. fly uc:ing high-frequency currents, one may reach a temperature r css of 2,000`-', so that extensive possibilities are opened up for manufacture of high-melting glasses for special purposes. Powerful ti:irr -1're-.iuency installations for the melting of glass which have been dd:veloped and constructed make it possible to change within a few minutes, ati r4_,i.iuirred, frcm an electric to a magnetic field or from a magnetic to an J.ect.ric field. K. M. Ycvstrop'yev- presented a paper on different types of glass. Among new types of oxygen glasses he mentioned aluminum-calcium, antimony, bismuth, nitrate, carbonate, and sulfate glasses; and among oxygen-free glasscs, those containing elements of the VI group of the periodic system (S, Sc, and To), i.e., chalcogenide glasses, and also fluoride glasses based on Be "r' . The author of the paper noted that there is a correlation between the glass-forming properties of elements and their position in the periodic system. The oxygen-free glasses have a number of special characteristics, including semiconductor properties and the capacity to transmit infrared radiation. These properties make them very useful for certain technical applications. L. A. Gr.echanik, N. V. Petrovykh, and V. G. Karpechenko (NIIES, Scientific Research Institute of Electrical Communications) reported on the results of an investigation dealing with oxide semiconductor glasses based on V2 05. It was established in the investigation in question that vanadium glasses are se:,iiconductor's with an electrical conductivity which3 changes depending on the ceanposition of the glass in the range from 10 to 10-12 ohm-1 cm-1. Their electrical conductivity is affected consider- ably by the temperature and varies in conformity with an exponential law. Replacement of V2 05 with other oxides results in a lowering of the electric conductivity. The physicochemical properties of vanadium glasses were investigated. It was found that they exhibit a high thermoelectromotive force, the magni- tude of which varies depending on the composition of the glass from plus 500 to minus 200 -volts. X degrees-'-. On the basis of the properties ex- hibited by them, vanadium glasses are suitable as material for thermo- resistances. A communication by N. V. Solomin, L. A. Grechanik, I. V. Shpakova, and Ye. A. Faynberg (Scientific Research Institute of Electrical Communications) dealt with the production of conducting firms on glasses which contain easily reducible components. The authors of the paper investigated the physicochemical properties of films which 6orm on bicomponent lead-silicate glasses and on glasses containing Bi2 03, b2 03, and As 203 after the.glass Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 hue buun truated. with hydrogen. By using this method, o ague films were (.),Aalned whiulh have a specific surface resistance of l07 ohms or higher. Th'. 1'iimu 1>ruducud in this manner exhibit electrical resistance within an (::ctcnsivu range of potentials, have a weak thermoelectromotive force, and show a negative temperature coefficient which lies in the range of 0.3-1% per 1'-'. 9. S nthesis and Study of Thiophene Derivatives as Rubber Vulcanization Accelorators and Antioxidants "The Synthesis of Some Derivatives of Thiophene and the Study of Their Behavior as Rubber Additives (Accelerators and Antioxidants)," by L. G. Angert, Ya. L. Gold!f'arb, G. I. Gorushkina, A. I. Zenchenko, A. S. Kuz'minskiy, and B. P. Fcdorov; Leningrad, Zhurnal Prikladnoy Khimii, Vol 32, No 2, Feb 59, pp 1+08-418 A description is given of the preparation and testing, for use as additives to rubber mixtures of 15 cc;rL- pounds of the thiophene series con- taining an azomethine group and having the general formula XC I0SCH NRY, where X is hydrogen or CH3-, R is either an aliphatic or aromatic radical, Y is a substituent. Azom':'thines with a 'benzene ring were also synthesized to compare their behavior as accelerato.s of vulcanization with analogs in the thiophene series. Besides this, five secondary amines with the compo- sition C4H3SCH2-NIIR'X, where R' is an aromatic radical and X is a substitut- ent, were prepared and tested. Finally, 2-mercap-to-4-(2'-thienyl)-thiazole was studied and 2-(2'-thienyl)-pyrimidazole was synthesized. The authors report, in connection with the synthesis of several azome- thines and secondary amines of the thiophene series, that the thiophene compounds containing a secondary amino group or hydroxy group inhibit oxidation of crude rubber. The inhibiting action of,these compounds depends, to a considerable degree, on the nature of the ortho- and pars-substituents in the benzene ring. A number of the investigated compounds act as accelerators in the vul- canization of rubber. The most effective among them appeared to be 2- mcrcapto-4-(2'-thienyl)-thiazole and di-2-thenylidenethylenediamine. As vulcanization accelorators, the thenylidene group exhibits a more effective influence on the properties of compounds than the benzene ring. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Inorganic Chemistry 1.u. Chloriruntion of 11henium Disulfide ' Chlor:Lnution of Rhenium :Disulfide With Gaseous Chlorine," by V. G. Tronev, G. A. Bekhtle, and S. V. Davidyants; ;;talindbad, Trudy Akadeinii Nauk Tadzhikskoy SSR -- Institute Khimii; Issledovani v Oblasti Khimii Redkikh Metallov i Solcy (Transactions of the Academy of Sciences Tadzhik SSR -- Institute of Chemistry; Investigations in the Field of Rare Metals and Salts), Vcl 84, No 2, Jul 58, pp 105-119 Rhenium occurs chiefly in molybdenum and copper-molybdenum ores. Its content in these ores varies from thousandths to hundredths of 1% (S. M. 13asitova, dissertation, Moscow, 1950). To enrich rhenium in connection with the treatment of ores of this type, chemical methods, including chlorinatiorn,,are applied. The chlorination of rhenium sulfides with gase- ous chlorine had iot yep; been investigated. For this reason, the work re- ported in this instance was done. It was established that as a result of the interaction of rhenium disulfide with gaseous chlorine, nonvolatile rhenium sulfochloride is formed, the composition of which is close to ReSC12, and also highly volatile rhenium pentachloride. When rhenium trichloride is heated in chlorine, it is relatively stable up to 4000. As a result of prolonged action of chlorine on rhenium trichloride at 400-5000, the trichloride is converted completely into rhen- ium pentachloride. The conversion of rhenium disulfide into rhenium penta- chloride proceeds ,t.n the following stages: Re S2 - ReS Cl2 - [Re C141 - Re Cl 5 Rhenium trichloride was prepared for the first time in the course of the investigation described. Its properties were investigated. It was established that at 400-500? rhenium pentachloride becomes a chlorinating reagent which interacts with rhenium sulfide. Rhenium trichloride forms as a final product of the secondary processes resulting from this interaction. When rhenium disulfide is chlorinated, the sulfide ion undergoes complex transformations culminating in the formation of sulfur monochloride. The sulfur monochloride does not participate in secondary processes and volatil- izes without change. Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 Approved For Release 1999/09/08 : CIA-RDP82-00141 R000100340001-6 mul'ls'. Which hu: bcozi done, one may conclude that as C! c prrL,c:.uct,; ('urlnad in the chlorination is u1c: t:nr.1., u/ t?c> i_ ,:!.c.Ll'.L