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S/076j62/036/008/010/011 B101/B144 AUTROR. Zharkova L. A. TITLE- Determination of thermodynamic funations for titanates and silicates by comparative calculation PEPIODICAL.- Zhurnal fizicheskoy khinii, v. 36t no. 8, 1962) 1019 1021 TEXT: Thermodynamic data for carbonates, meta- and orthosilicates, met.- and orthotitanates verelcalculated on the basis of equations suggested b y M. ICh. Karapet Iyants (Zh. fiz. khimii, 28, 353, 1954) establishing a r e 1 a t i o n ah b e tw a en, the thermodynamic functions of those compounds, and were,compared with published data. For carbonatos, metasilicates, and -at 0 0 m e itanate:3 Z 298 ' 0-993. 4H298 ' 17.92 with an acouracy of 0.6 0 0 kcal/m-ole. For orthotitanatest JZ 29EI 0.9964H 298 + 25-3. The following relation exista between the thermogynamSo functions of metatitanates and carbonates-, ZZ 106s3# Further; 298(~H2-98) 1'OOUZ29P298) MeTiO hieco Card: 1/3 S/076/62/036/008/010/011 Determination of thermodynamic... Biol/B144* 0 0 0 0 L4 z (4, H 1.00167,0 (6, ZO (,A no 1.001AZO 29V 298- 296 ~298) 90.8; 298 - 298 298 298) 140 CO 1',eTiO Mesio I Me S 10 16.8. For.calculating the'Nnetions of orthotitanate.2 and orthosilicates 0 0 suggested the following is r 98) 1.014Z'98(~i.11'98) 24.2. z 6~298 2 2 2 .298, 14e TO It"'e Sio 2 4 2 4 0 a ~H vere calculated for 2) titanates and silicates not yet studied by nd 298 experiment(Table 4). There are 3 figures and,4 tables. ASSOCIATION: Lo3kovskiy gosud~ratvennyy podagogichookiy institut im. V. I. Lenina (Mosbow State Pedagogical Institute imeni V. I. Lenin) SUB WIT .~ED January 05, 1962 Table 4- Thermodynamic data of some meta- and orthotitanatea, meta- and orthosilicates not yet studied by eiperiment. Legend: (1) compound; (2) kcal/mole. Cara 2/3 62/036/008/010/011 Y .Determination of thermodyna mic... B101 B144 ~(D AR Ail at eAUH MS TjO, 397,10 77 2 S , , 100 IgI -381,5 0 365 -360 8 _:A2:5 Na T103 5 6 59 , S 3 2 cs2sio$ , KsTiO., 0 sTi C -380 :.-374:0 J 353:1 SrSIO3. -380 8 - 163 , ZnTIOj .;-300 7 -281,2, BaSIOs 1 -, , 7 214 UT 10. -2t 18 6 : -230,2 CuSIO3 IO F 233 _260' - , -252, t NiTIO 273,4 ~-279 1 _25312 - 29 5 0 O S COSfO3 ' -263.6 - 243,6 T 1 CO MnT103 , -320,11 : a 01: 3 NISMS 2177 2 6:3 5 -257,3~Table 4 -488 8 bT p iO3 7 -273 -256 1 Sr%SIO4 Ba M& - 7 -508 , -482,0 M 4 % A j? .Card 13113 66183 _54) BOT/20,-128 :.:-~A1JTHORS8 Zharkova# 'Gerasimov, Ya. I., Corresponding Member, AS USSR9 RezUhinaf. To It,9 Simanov, Yuo Po TITLE: .The Equilibrium Between Zinc Tungstate and Hydrogen and.the Thermodynamic, Characteristics of ZhWo 4 PERIODICA Lt Doklady Akademii nauk SSSRp 1959, Vol:1280 11r 5 vPP 992-994 (USSR) ABSTRACT: The thermioaynamic 6haraoteristics of tungatates an& molybdAtea of bivalent metals have becu investigated at the laboratory of the authors since 1944* The method of circulation applied so far was not applicable here as zinc evaporates and is carried away from the reaction zone. The method devised by J.A.Kitchoner and So Ignatovioz, (Ref lop rig 1) was therefore employed, ye tnot the quantity of the vollatile product but the hydrogen content of the gas mixture in equilibrium was determinedg i.e. by measuring the electromotive force,between two hydrogen electrodes, one.being saturatedwith pure hydrogen and the other with a mixture of hydrogen and argon. In order to check the precision of the apparatusq.the.authors measured the temperature dependence of the Card 1/2 'equilibrium constant of zinc-oxide reduction (Fig 2,1). Herefrom 5(4), 24(8) AUTHORS: Zharkova, L. A., Rezukhina, T 11. SOV/76-32-10-1/39 ilk TITLE: The Specific'Heat of the Nickel, Strontium and Zinc Tungstates and the Barium and Strontium Molybdates at High Temperatures (Teployemkost, vol.'framatov nikelyap strontsiya i tsinka i molibdatoy bariya, i strontsiya pri vysokikh temperaturakh) PERIODICAL: Zhurnal fizicheskoy khimii, 1958, Vol 32, Nr 10, pp,2233-2235 (USSR) ABSTRACT: The determinations mentioned in the.title were carried, out in the molar calorimeter within the temperature ranges of 683,2- 293,20K to 1125,2-293,20K.-The scheme, the method employed as. well as otherdetails were already described (Ref 1). Data on the technique of preparation-and analysis are given. The results obtained are given in a table. In the table the mean values of ..~the specific heat are given for each temperature range, an so are the comparative values of parallel experiments. Equations for the calculation of the mean specific heat as well as the obtained using them are mentioned. The mean specific heat (C ) of all investigated salts.varies linearly with the tempera- P Card 1/2 ture within the ranges investigated. The specific heat C was p So V7 6`42-~_C~-V3 _9`=== The Specific Vates and the Barium Heat of the Nickel, Strontium and Zinc Tungsl and-Strontium Molybdates'at High Temperatures calculated from the mean specific heat according to the equation 2 312 9 drGp (T dT P The function C '(T) is given individually- for the chemical com- p ~ pounds investigated. The authors thank Professor S. M. Skuratov for his advice. There are 1 table and 2 references, 2 of which are Soviet. ASSOCIATION: Mosko,vskiy,gosudarstvennyy universitet im. M. V. Lomoncoova (Moscow State University imeni M. V. Lomonosov) !SUBMITTED: Januar Y 30, 1957 Card 2/2 -zj4RP,KOUYI F14 A . 76-10-15/34 AUTHORSt Zharkova,;L.A.p, Rezukhina# T.No TITLEt Specific Heat of Lead and Cadmium Tungstate at Eigh Temperatures , (Teployemkosti vollframatov svintua i kadmiya pri vyeokikh tem- peraturakh) ~PERIODICALi Zhurnal Fizicheakoy Khimii, 1957, Vol- 31, Nr 10, pp. 2278-2280 -ABSTRACTs 0 Data for the specific heat within.the range of from 600 20 C are given here.,The specific heat was determined according to the method for mixing in a massive calorimeter. The description of the device is found in M.M, Popov's "Termometriya i kalorimetri- ya", 1954, publishing house MGV. The mean specific haat of KC1 and KBr was measured as a control of the absolute accuracy of measuring * It amounted-to 0,100of 011131 cal/gram-degree rasp. The mean specific heat C within the investigated temperature P range amounts tot -5 0,06566 + IoO34 10 T (accuracy 0#03 %) P, VbWO 4 10-5 C T (accuracy + OtIO %) OtO7754 + 1,9041 Card 1/2 P, CdWO 4 --A MULTSOV ) 0 Ye. Fast method for the determination of the elements of occurrence and the gravity effect of disturbing masses havJng the form of a bench. Izv. Kazan. fil. AN SSSR. Ser. geol. nauk no,ln-18-24 163. Interpretation of the materials of detailed gravimetric surveying in Tatarstan. Ibid.:144-150 shsM61/00/005/002A -14 B101/B! 10 AUTHORS Zharkovat-M. Hassolova, E. A., Kudryavtoev, G. I., enkov, Klim ,Copolymerization of.acrylonitrile and 2-methyl-5-vinyl TITLEj pyridine in aqueous sodium thiocyanate:solution PERIODICALs Khimicheekiye voloknal no. 5, 1961, 13 17 TEXTs The'authors attempted to improve. the quality of acrylonitrilt, fibers by means of pyridine derivatives.' Previous papers (Khim. voickna, no. 3, 15 (196o),- ibid., no. 6,, 15 (ig6o)) dealt with the copolymer i-.~s t I on f acrylonitrile (All) and a-vinyl pyridine (a-VP). In the present .0 the system AN 2-methyl-5-vinyl pyridine (MVP) was studied, since s simple method of producing MVP has been developed in the Soviet Uniori. 50% sodium thiocyanate proved,to be an optimum solution for copolyrner.,.-,r, tion. Experiments at room temperature and-700C showed that the forwitior. 'Of sufficiently concentrated homogeneous spinning solutions (12 - 13',0' with a maximum ratio ANsMVP 85:15 is limited due to thepoor solubility of~mvp. Copolymerization of AN and MVP,is analogous to that of AN end Card V4 27 .566 183/61/000/005/007/i~02 Copolymerization of ... BIOI/BlIO The yield after 60 min is 60 65~o.,_ The reaction rate drops linearly with. the time of polymerization. Fig. 4 shows that MI'le pp. of themedium exerts a considerable effect upon the yield. These data are not in agreement with those cbtained by-Yamamoto (see below). Only in media does.the specific viscosity depend on pHI in alkaline media'it is constant. The initiator used in oopolymerization waa azodiinobutyrio acid dinitrile. The polymerization rate was found to be a lirearfu:Ietion of the.square root of the initiator concentration. With 0.055 initiator ~X (opt-imum. concentration), the polymer yield after 1.5 hr is 75 - 80j. A erature (from 60 t 800C) accelerates the Process. 70c,".113 risein temp a optimum for a 7% monomer solution, since the polymerization rate is,not high enough as to cause overheating. The activation energy is,14.5 To, obtain optimum spinning solutions, the specific viscosity should not exceed 1.0 - 1.2. Therefore, experiments were made with various regulatorst monoetha,nol amine, thiourea, thymol, lauryl mercaptan, diproxide dipropyl xanthogena'tedisulfide), thiourea dioxide. Mon.o- ethanol amine was the only- substance to affect the molecular weight of h,- 10.764 4 polymer. , io ofmonoethanol amine (with a-VP only 0.ep) was requred to obtain AN-MVP copolymers of the desired viscosity. The effect of the ira.~io Card 244 ZRARKOVA L P KPISHOITI'lCHI, _~.G.: ROZITIS, T.Ya.; LYS., otv, red.- &'GAGHEV4 'G.V., X*d.; RDMANOVA S.F., tekhm':r9l., (lbaral K-40/80 crosabar.a-w~,omatic wlephone exchanges) Sellskie koordinatnye ATC K-40/80; informatsionnyi, sbomik. Mosknq Svlazlizdat., 1963. 109 p., 1. Nauchno-issledovatellakiy institut gorodskoy i sellskoy telefonnoy avyazi Minisiterstva avyasi SSSR (for Zharkova, Movehovich, Frolova). 2. Gosudaratvonnaya elektrotekhni- ~eheskaya fabrika, Riga (for Radzitia). ftsla'mhonal A051 /A 126 AVMRS: ZharkOV4 M.A., Rassolova, E.A. f(j.Irwnkov, V.S. irITLE: Production of fibers based on acryloni tri le oind 2-m~w tiv.' -vinylpyridine (MVP) copolymer PERIODICAL: Khimicheakiye volokna, no. 2, 1963, 3 - 12 -1-17 - ~:" I - This Is the fourth arti-1,- in t series of r--,,)ortB on the production of fivera )n AN 2op,)1yTiver in aq1-ie,)tjs iohit;ons ' --iftirj thlocyanate. Studies were conductea ui. the e --' ! -!z 1' -nc-ritra L4~-! !i i:,ris , f rN and WR In a 5% aqueolls solution or ^1 - if. pr-v-, xis ia- ,-a by t'~'e authcrs t,'-) fln'! the 'ftdirl 1aw sequence 'A -,awonltion 9 i4a t ic)n -f p o I y me r,, 4ar e s c, ences to that C~l tne acryloni tri and MVP copolymer has certair, te~~ r, 1 k: -t;k of these copolymer solutions make it Card 1/2 Production of fibers based on acrylonitrile .... V Y I A 12", or polymers of a higher molecular waigfit. The AN-MVP syr'~em wlld.-3r range of the polyror concentration ohaxige tnAr the kAN - i:js * ow. fl~,--aus zolution shows a tendency to structurallzjf~g, R YMA s I , _L it usin copol r with a specific viscosity above 2. -Exper-i'6ments showed the optimum specific vls- ,irsity to be 1.25 - 1.5. A slight temperature elevation of the aolutl~m -0-duces t' e lat (" ,16 Z) i a -ter. Investigated solutions of o.8, 1.2c, 1.4 c s - ty, left to stand, did not gelatinize at 21,'(., 7", .C, -ven whei-, oft ~or 1,0(X, h. The hom3geneity of the fibrous solutions, arter the erd of th~l tehydration pr,..)c- ess, remained constant. There are 5 figure* and I ta-,)1e. ,%SSOCIATI(jNz VNIIV SUBM rrr June 12, 1962 Card 2/2 1:1 fit RR P., S11831601000103 06/007 B020 B054 82o64 AUTHORSs Zharkova, M. A.9 Kudryavtsev, 00 IQ TITL,E: Copolymerization-of Acrylonitrileland cc-VinXI Pyiidinel,in. Aqueous Sodium Thiocyanate-Solution PERIODICALs -,Xhimicheskiye voloknap 1960, No- 3, pp. 15-18 TEXTt As no publication.dataare available on the copolymerization of acrylonitrile (AN) withoe-vinyl pyridine (61-VP) in aqueous aodium,thio- oyanate solutions, the present paper studies the principal rules govern- ing,the process of producing a thread-forming copolymer with low vinyl' pyridine content4 Table,I shows the change in,composition of the copol*r from the initial ratio of monomers in copolymerization; it was found that, in agreement with theoretical calculations, the copolymer obtaintl always exhibitean increased cc-VP content. Pig. I shows the dependence of the copolymer yield.on the initial concentration of monomers in the, Fig. 2 the dependenceof the initial rate of polymerization on the monomer.concentration in-'the solution, Fig. 3 the dependence of the -monomer consumption on timeat differont concentrations of the initiator Card, 1/2'~', 09polymerizAtion. of,Acrylonitrilo and m4iuyl SJ/183J60/000/03/06/007 Pyridine in Aqueous Sodium Thipoyanate Solution B020/B054 82004 at a ratio ANL 95 a 5L % by weighto and Fig. 4 the dependence ai-a ratio AN s ot-VP "i go IL 10 % by We, ght. The influence of temperature on the polymerizationlrate of.AN,.with or-VP is ind JoatedL in Table 2. lat Table,3 shows the influence of regu ore (lauryl mercaptan, thiourea, dipropyl xanthogenate disulfite) oncopolymerizationo and Table 4 the influence of the,monoetbanol amine amount on the copolymer yield. It is shown that the reaction rateLiaLproportional tothe initial con- centration of the monomer mixture and the square root of the initial concentration OfLthe,Anitiatoro The authors-describe the reagents used, the methods of.investigationt and the determination of copolymer composition. E. Ao Hass ojoVa in working out the methods. There are 5 flMes, 4 tablesp and 5 references% 2 Soviet, 2 Germans 3 British, and 2 French. ASSOCIATION: VNIIV (All-Union Scientific Research Institute of Fibers) rd 2/2 I L - -/ .1 IIIINIIIIIIIIIIIJImillm CC-M -Ap7000~2_{-) WM OURCE CODE: UR/0413/66/000/022/0077/0077 INVE NTOR:' Kudryavtsev, G. 1. .~harkova, M. A.; Romanova, T, A.; Klimenkov,.V S ORG:_ none TIT LE :Metho d of preparing modified polyacrylonitrile fiber. [announced by the All-Uniori Scientific Research Institute of Synthetic Fiber (Vaesoyuznyy nauchno- issledovatel'skiy institut iskustvennogo volokna)] Class 29, No. 188617 SOURCE: Izobreteniya, promyshlennyye obraztsy, tovarnyye znaki, no. 22, 1966, 77 TOPIC TAGS: polyacrylonitrile, hydrazine, synthetic material A13STRACT: A method of preparing modified polyacrylonitrile fiber is introduced. To raise the chemicaland thermal resistance of the fiber, it is treated in a --hydrazine solution and heat treated in an inert-gas medium at 150-200C. [Translation] IKPI SUB CODE: 11 /SUBM DATE: 17Sep64/ Card UDC: 677.494.745.32:546.171.5 87478 S/183/60/000/006/003/005 B020/BO58 AUTHORS: Zharkova Kudryavtoev# G. I., Klimenkovo V. S. TITLE: study of tho~Conditione.of.Copolymer Production From Acrylo- nitrile With Alpha Vinyl Pyridine# Suitable for Fibration ~PERIODICAL: Khimicheekiye volokna, 196o, No. 6, pp. 15-19 TEXT: The paper, reports-on the results of studies concerning: a) o0poly- of acrylonitrile (AN) with a-vinyl pyridine (a-VP) for the purpose of producing a copolymer with predetermined molecular weight and the determination of the optimum concentration of the spinning solution, b~ the d6termination of the optimum concentration of the salt solution, o the conditions for the production of suitable spinning solutions, and d ria n thet 1 formation j: precipitating baths.with aqueous salt solutions and the study of the physical and mechanical properties of the fiber ob- tained. In copolymerization, the molecular weight of the copolymer is influenced:by the amount of the initiator (azo-dilsobutyrio acid-dinitrile), thetei~perature* type of solvent and amount of the regulator (monoothanol amino). Copolymers with a ratio AN a-VP of 85 15 and 90 10 weight% Card 1/3 87478 Stu ,dy of the Conditions of Co polymer Production 3/163/60/000/oo6/003/Oo5 From Acrylonitrile.With Alpha 'Vinyl Pyridine, B020/BO58 Suitable for Fibration' :were-studied. The influence of the amount of regulator on the change in t1iie-df the'intrinsic viscosity (Fig 'I), and the dependence of the intrin-, on theregulator cono;ntration (Fig. 2) are determined. The change.of the intrinsic.viscoeity of the solution in dependence on the. ~amount of initiator used is mentioned-in Figs.3 and 4. It can be seen from 'Fig-5thatwith rising temperature the intrin aio viscosity of the co- o 0 -pblym4r produced drops from 2,5 at 60 IC t0.1.3 at 75 C. The dependence of.the intrinsic viscosity of the copolymer on the initial concentration of the monomermixture (Fig* 6) shows that the probability of a chain rtipture through the solvent increases with sinking concentration of the monomers,in the solution. As.may be seen from the tabulated data con- oerning the. conditions of. the copolymerization of AN with cz-VP in the :Production of spinning solutions,'the rate of.polymerization in 45 to 50%. sodium thiboyanateVunder otherwise equal conditions is always tha samd and'the copolymers have the same intrinsic viscosity (1-39 to 1-4)- Fig'. -7 shows the, dependence of the viscosity of a concentrated sodium thio-, bybLnate solut.lion, on the intrinsic viscosity of the copolymer, It can be seen from Fig. 8 that at an intrinsic viscosity of 1.38, 10.5% to 11.2% Card 2/3 T. Qh9c; ACC rM AP6000277 SOURCE CODEs UR/0183/65/000/005/0013/OM5 AUTHORS: Kudmvtsrav- 0. 1.; Rawnova, T. A,,j Zharkova,, H. A,; Klimenkove V S ORG; WIN TIM 3: Some- chemical- propertie's or croos-linked PAN (polyacrylonitrile) ribere SOURM Kbimichaskiye volokna, no. 5, 1965, 13-15 -TOPIG TAGS s.:.,fiber Acrylonitrile,, icrylonitrils polywr,, acrylic resin, - polymer planticlVeynthetio fiber ''ABSTRACT.- T6 paper presents results of a study on the A& oaponi fication of chemically croso-linked PAR-fibers The study was undertaken to extend the presently aval I physical properties of cross-linked PAN-f ber compl'od try G. 1. Kudryavtoov, T, as, F !21 d7, njUM: sulfide hL _saponifi6ation _Was -ammo was--studi6d.-L:'T 0 doternine&by meas uring the amount of ammonia released by the fibers after treatment vith 40% kQ'd solution. The experimental results are presented In tables and grapho (see Fig. 1)* It was found that these results did not agree with the usual kinotic expressions UDGr 677o494. Fig. 1. Reaction kinetics of saponifica- tion of chemically cross-linked Moore: 1 - noncrose-linked fiber; 2 - fiber cross-linked with hydrazine hydrate (weakly); 3 - the aame (atronGly cross- linked); 4 - fiber crose-linked with amonium oulfide (optimm); 5 - the eame (weakly); 6 - fiber cross-linked with hydroxylamine (strongly)l 7 - the same (weakly)a . _L 9bz-.fh ACC NRt Ap6o=77 where Mt is the wwunt of reagent diffused into tho cylindrical fiber in time t, M oo - the same for t -I ooj, r - the radius of fiber, and D - the cooffizient of diffusion in 41cee. From thin expression, values for diMision coefficient D were calculated. The results are tabulated. It is concluded that cross-linkage of fibers may 1~qd to a change in the chemical properties of tho fibers. The formation of a --o-la layer- he diff __#nt -~On-t fi~or-_-surface -may- giva rise in nomw tam (hydm-- Wr -PQ, ya- r ti -of no n- an armoring-'efIreac ~Fi pro 043 on the- flbe'rwapi t-ua-~ zi edition) t.6 t 0 #P action of corrosive agents (concentrated alkali). The authors thankYe. A. Vasillyeva-Sokolove for the fiber specimens crous-linked with ammaniu-m-WOMe. Orig, art, fi~ast~tables, 1 graph, 1 photograph, and 2 equationa. SUB COM C17 pU/ SUBM DATE t 23AFV65/ ORIG FtEF3 009/ OTH MW: 003 ..tc4,3, (J) 11 TJP(r) VPA1 /BM. ACC NR:, AP6026735 (AJ tOURCE CODE: UR/0183/66/000 ./003TOO12/0015 AUTHOR: Xudrvavtsev; G. I.; Rassolova, E. Romanova, T. A.; Zharkova, X. A.; Vasillyeva-Sokolova.lYe. A. ORG VN11V TITLE::.'Preparation and modification of fibe4orming polymers made of u ts c itrile ni ontaining acrylon ~SOURCE: Khimicheskiye volokna, no. 3, 1966, 12-15 TOPIC TAGS: polyacrylonitrile, synthetic fiber, copolymerization, catalytic po1ymeTi-,.,- zation, polymerization kinetics, copolymer ABSTRACT: The kinetics of the hydrolysis of polvvinylcaprolactamiand acEylonitrile-w vinylcaprolactam-929SI-ymer stud'ed. The object of the work was to prepare readi- fibers sis constants were measured at 10009 ly colorable and hydrophyltik' c Th,,~ hydroly w-ing aque-ous and alcohol solutions of the title polymers (0.007 mols polymer per lif- er) and, 0.1-5.0 mols/liter concentration of KOH, NaOll, 11C1, H2S04, or p-toluolsulfork.4c acid. The acrylonitrile-viny1caprolactam copolymers were rynthesized by holding ml tures of 86.0-99.0 mol % acrylonitrile and 1-14% vinylcaprolactam for 2 hro at.600 C The potassium persulfate concentration was 0.3% and the monoethanolamine concentrati vas 0.1 wt based on solution.- It was found that for a given catalyst concentratio UDCt 677.494.745.32 L.5~ard 1/2 ACC NRj AP6026735 the rate of hydrolysis was Identical regardless of the nature of the catalyst,used.' In general, the hydrolysis rates in the alcohol solvent were twice as greatas those in -7 vinyllactam groups, the rate of hydrolysis was, water. For polymers containing 5 found to be independent of the number of these groups._ It was found that saponifica.4' tion (treatment with 1% acqueous KOH at 7000 of the vinyllactam units containing 0~1 7 ,poly-mers yields fiber-forming polymers with excellent mechanical properties, good colorability, and improved hydrophic ability. Orig. art. has: 6 tables, 2 formul'sq SUB CODE: -0-71"L StMM DATE.: 23Jun65/ ORIG REF: 006/ OTH REE.: 00 Lqqrd 2/2 -18719 8/191/62/000/007/006/011 170 B124/B144 'AUTIIORS:~ Kleynovskaya, M. A., Sobolevokiy, 14. V.,Zharkova, N. W. ............ TITLE: Investigation and properties of liquii poly- organosiloxanes as depending on the riethod of synthesis. Communication 1. Investi gation of composition and properties of polymethyl~phenyl siloxanes produced by cohydrolyeia PERIODICAL:-. Plast4cheakiye mas Isy,no. 7, 1962, 211-31 TEXT: The authors made the first attempt,to deterraine the composition of polyorganouiloxanes 'resulting from various methods of synthesis, by means of combined molecular and vacuum rectification in spray and packed towers. An apparatus developed by F. W. Melpolder et al. was used* Separation is conducted under high vacuum. The apparatus may work either intermittent- ly or continuously. With infinite reflux the efficiency of the stills~is 0.75.1 The composition of polymethyl phenyl eiloxaneg got by cohydrolysis of,a mothyl.:phenyl'dichlorosilane-trichlordailane mixture (3:2.2) at- 96-1000C in acid solution is investigated. The product was thermally Card 1/3, VY 5/191/62/000/007/006/011 Investigation of compositimand B124/B144 Stabilized in nitrogen flow, distilled at 0.1-0.5 mm Hg, and collected n four fractions. -Apart from the distillation residue dieregardedg the reaction product is mainly a mixture of linear polymethyl phenyl siloxanes having the composition (CH ) sit'osicll C H I OSi(C11 3 3 3 6 5-In 3 3 (n ~- 1-5). Fraction 'I is a mixture of low-boiling linear po.lymethyl phenyl siloxanes with 3-4 Si atoms per- molecule, fraotion,II consists mainly of linear methyl phenyl tetrasiloxane with small amounts of methyll tri- and methyl phenyl pentasiloxane, fraction III of linear methyl phenyl 3iloxane withj Si atoms per molecule, and fra6tion IV of linear methyl.phenyl siloxants mixed with 6 and 7 Si atoms per molecul e besides small amounts (3-97"o') of cyclic methyl phenyl ailoxanes. Four .:linear-Dolymethyl phenyl siloxanes were isolated and characterized, the first three of which have not previously been described in publications: tetrasiloxan 191,193,MPMP9.1 nonamethyl-3,5,7-triphenyl pentasiloxane; 1,10,3617,901111,11-deca- methyl-3,5,7,9-tetraphenyl hexasiloxane,,and 1,10.3,500-heptamethyl-3- phenyl trisiloxane. There.are I fidure and 3 tables. Card 2/3 5/19 62/000/009/005/012 B101 Dependence of the composition... YB144 The prodtx6t~conta:ined 1.2~6 hexamethyl diailoxane, 1M. oL,W-haxamethyl- polydimethyl eiloxanea, ~26~, at LJ-hexut6thyl-polymetliyl-plienyI siloxane's, T' -hexamethyl-polydimethyl-polymetkiyl-pbonyI siloxanes. The -23% of 4 5/ nondistillable'residues seem to be,composed of high ymers of the -boiling.pol typo.- For 11 compounds.-,of.the Civen Eeneral formula).10 of whi atter were oynthetized for,the first time, b.p. (OC/mm He), softening point c( C)"~ 20 20 n d -nd 'k,) (centistok,es) are eiven respectively as followas n. It 4, M ()I,',78-79/0-5,,-,,1.44702.10-9118P 2,55; n m 1i 87-88/0,5v-75t -0.9244, 3,75*-n'- 1 -m 2: 1 1.4393t' 05/0-5v-95o 1.4363, 0,93551 3.851 :n - 2, m 01*1130-132/0-5t -75p:1-4775,0-9761i 7-05; n - 2, m - Ii 147-149/0-5, .-709 1-4670, 10-978/6, .7-771 n - m - 2% 162/1.0, -6o, 1.4605, G M M C 0 ~~0-9807t ;~50; n 3s'm, Is 180 .,-5, -6o, .1-4950, 1.0132 ',1517l; n 5, m 11 -55,' 1.4858, .4.0132 15.90; n W 41 m It -- p -60, 1-49851 21". 13; 'n 4:1 , M M .55;.n - 51 m 2a 2& -60tJ 4930) 1.0327,127 '-551 1-4987, 1-0472 43-86. u.molecular distillation. Thus, a ..regular connection exiets between't:he physicochemical properties and the: content:of dimethyl-'~and methyl-phenyl siloxane-linke. There are 5 fiqurea dLnd 4 tables. -Card 2/2 Polyoondensation of Bis-(P-hydrory-othloky-methyl)- S/190/60/002/009)610/09 tetra.methyl'Disilorane.With Dioarboxylic Aoids, B004/BO6O .silicon content of the condensates.- There occurred neither a cleavage of the siloxane bond in the dikeWldicarboxylio acid nor a cleavage of the Si-C bond in organ 0silicon glycol., As is shown In Fig. 1; the acid number drops during polycondeneation while the eater number rises. The .~polyestera obtained-ar~,,high-viscous, dark-colored' substances well solu- ene alcoho -mixtur ' As to shown by Figs 2; the viscosity of ble in.benz e. polyesters rises.with the numberof dimethyl siloxane groups In diketo dicarboxylic,acid. On the reaction of the polyester obtained from diketo -dicarboxylic acid (n-5) with hexamethylene dii~ocyanate, the authoi-B -obtained an elastic, rubber-like, cresol-soluble product. The change (Increase) in viscosity' as dependent on the reaction period is illuetrat- ed in Fig. 3- Bis-(P-hydroxy-othoxy- me.thyl)-.tet.ramethyl disiloxane also condensee with adipic acid without a cleavage of the,$i-C bond to form;a polyester, Fie, 4 shows the change in the acid number and eater number during the reactiona, There are 4 figureal 1 tablej and 3 references: 2 Soviet andI US. Card 2/3 IKYWO R491 IF 190 R11 III m fly; EPOIN I 10. 1111111., 11,11111 M-1 9-1 i_ 1'(1 1 ! I . 1 .1. .. ~ - 1. : . . -+- t ~04C . I 77: ring Wf*Tl,.Li I""%' nn dm 0a - 1- -ll- ~ ", 1. 1-1 -- ml"~ I - .- Imp gull 1 "341111 of Rauffill I r~ IMP ',I. ~,~ZHARKOVAp T.MO d mineralogy of rock.salts in the southwestern Petrograph7, aj art of the-Siberian P:atform in conneotion with their potasoium Potential. Geol. i geofix. no,l2s29-37 t64. (MIRA l8s6) 16" Institut geologii geofiziki Sibirskogo ctdelaniya AN SSSRO Novosibirske ammINUMMINNIIIIIIIIIIIi "t" NO MINIUM1111,111 IN c c F s ON NR SAMUSE7A, FLYUSHCHET, V. Ye. System n-a2MoO C0214004- Zhure neorge khims 9 no.lls2678-2679 N (MIRA 18tl) 1e Moskovskiy.institut tonkov khimicheako7 tekbnologil imeni W.- J* :110 0 So's 0 0 0 SO ON 0 0 0 a So 0 0 0 0-41! A I I I It u is it It It Jp t 140 1 1, 1111 $1 16 A 0 0 b to Of a )1 110 OF a 61 At to 0 a to 0 1" 4 a A W Al A t o - 41 . 'J' '. U 6 1 so f a i coastifets itibrialft Of of sescismis Ot loydn"fboodit. ."0"t (;#x u A V J V , . . . a C"R' + %m CAM. (to, 11. the emsu. id equodwilt fit the a So 8 by-b-tenatk" of manistit hy'h`1kwIxWq were .1"divI in the m4di'm C4114 +'I'll ~11" T'w workul Durrviasuld LtIewill) (C. 4, 31.Z)13) trawgrilerally 00 Wi" OW Commit tango of wd-pflo- p"lwrd", NMOIN"I. which cmdutW , 111141 km "U" z heat 111w =1 IL + roe 1 The valur 411 rMts the diderence reaching 1 0 ill the valtue ad( Ift x 0 . . O == C at *1540), 1. 1 In the r 1. the .'J. udko CJIXJI 11 11 C 1I 11 + fl + C C e ff 8 . , , 4 . 4 t . 4 0 o* 8 abomst 0.6, Indicating that tb--WY-1k"Y a nwft mriples wmknntk. r Cyd,, i~ &~ Protable as the Con4"Lution of 2 cyd". The pnxvws at coadematiou At c,,Wki,t OR 0 =94 ~' , WIP1. (400-M)") ovkhout. 11, am my complet. wW the e&(ent ill cuiukpmtkm Cal, t~ t 1 At th ki ) S Wl t d I th t" K ( . IF I e crec emps. a r mm ot - cOmPu n9 apmx. ; I)MIturcolift(10-Matonsolroolukedu shifts the equil. in i;e dlr;it-km C;# C.M "My ct shouhl be Wift-twd in list proesss of destructi'A. chtchins emplex cmdroolsatim% whi V11 ~ I Lmma- " I -:. : .~ ~ I I 1.11111hTtAt jj IWO Mb it &# so t It it Of it a tv mw A I An We 0 0 go go to 0 0 0 4 0 41 IS 0 0 OA at 0 O g , 00 -410 d of MbMIW6 IV. medefps"We oft rate an ' Zh lt k V -00 00 ')v sV - - 4, A,l.Nasws. CL A, V.7nako "d A. Ftw. J. ' it.) 7,1(0-70(1937). cf. V. A. A 4UP-Hil"s. x0pe, 01 C,116 weiie mole at NIS, undrr ptrPmum the 4m The rcwikm a-ming p varvivs km I to 26 stm. "C M - 9CH 1l + c Ji W (2) f C ea o. 4 e i m O # + (1): C4M j dtat"" SW freal" (2) with in. di h l 4vtor nsait o LWhrmetlemarewI creaw of L. M adorskr 4wTe teMp. aid pCemurm coo 0#0 0-4 114L I NSI U LIUROWS CLASWICATWO tie 0 # A L C 11V low 3. boo 9 1 d. it T !X4 u a tv to k5j;, It it see* goes 0 4 * 0 0 0 0 0 0 0 0 0 OA 0 0,0 0T -A A~A AL A. Ll I 1 1 f L 1 000 ono #*owomm$ twtv *00 ' -00 0 1 0 egg , * ~41N. - - t -40, se., - 0 911~ abomis. Y. R. U ~jkr,7 R 06 11 1 . .I .) -,,~lAkmdwv*w 0 . . -It Is lWent"I'mm the elk- cf St OW C A okm) . . . . . ; anapke *bows that vakw. buM an 14tur's tWtuady- off namic data C. A. J1, ~) for the dfarnaskm Of l h ( alo 0 arO. grtva"t t cxpt . wberfts 4sla ==30 equallsom of fmv rmrKy .00 vaW by NOW m4 MqtM In a uumtwt at Instame 41 d t Diff t o kwmoot a a. e"W" not to The VXPO. ca" fnmwh 0. of unit Is larmitionok, emit at to OW, :00 0 goo Meg 200 Aid-ILA atTAtL6*$ICALLI?90414itCtAIWICAIM c No 41 Rim 11"fill" We I too Ik 6#0400 ICA# ant d&f r 9w an too 00 u OD s$1;, it A I'll ~ I I I till IILW'o* fA 0 A 0 0 Op 0 0 - Alk~ 0 0e0000900000 0 41410 0 0 0*0 ,- 0 , W 1 11% UO 7 big-or 0111010 " i , . 1: 1 : T, f 4il ~- t is *1 daw"b VU AoW s b u go . . o y y W fit H. MuMars-kif w V. -A-44004-0 3 R A ) 1 M *0 to 2 . . . 4, h d. C. .39, I wd t * * * o Al F), It tivi.ills 2714 114tuWait C A. S ~; ;w u" un"Id. in alit to. ~ pa. ulsaw. hyihumba" with a doubW b t the twdwr c Kim, &Mine Ito. MW ti- wd a m h h t l f f A I irr s t ut dttu. o M u ot mt k lk t, *00 0 44 Alut Mn 6*m having doubk buwb at tbt I"IkrY C at-'All IA UIW (44 pwo T"MINIS. all well sit III Iflists. 000 wit waffins, naphthwit", AMI A"Itpolle. bviftwAsIM410. -00 roo 06,j oo~w iro o see 110 400 No 0 goo goo kW 40 silam V too o & O JrA W way 00 ,1;-; a s A a 3 goo 0 a 000 go 0 0* * 0 0 01 #111611 Is I Tr Tiv )1 9 U 10 0 it 0 7w- -19f I - i -WWW 411 TFUTT 30 to 0 444 1d.- -A- d'- -4. 00 11 1111610d"don at kydrombafte. VULI .00; I-b~ -2-bul V. zharko" and P. loloultolml (bertinsw Iligh F'rifill- log M.-M :W' XUV~ VIA. -S,0114 ikC'. Chile 1011W. lion of imitclivit to Il'us W p lot 1) tilivs. 11111, 7. 1,3. M.A. moul .1.21 _ 1*0 A Vrr Ihv hillovil"S vaillystio were plinficill lr~tw. 'I tie v4pid. is I kt. 111 1 m.1 '.1 long% lie ud~ olmitit'l .1lapot (At' Unike L&A gel, AW800to sind salvatO clay by IWOONigo' id IIW 111160PWJ~ tillit" 4 thr 2 Omer she Orvir"S 4* Wit A? W" Pftlkl. by CakildlIg ps)(11. h , :,droxhle at 3A)". 11;jUke VMS Impresnatnt will% IIJU viotalpl~.. U114 111110. Imilo PrIv toppo'soth"I Imns 1004h I. 'itits. At :Wl' mmi 11,110. ilw itind. ties at IN Itil; *of -4. 1 1-wi 41141 dFle, In mAtibe (itinavor 24 bee. at I ImOnt- and.)O 2'!; 11!-Itiloit , Atteni'tts lot fix the AMW was toiatip by pilln, oof Al(IIIII)i oltivol oil 11W. h 1. ml Ita, .41,O)VO 0 IW. its. In logo in 110' X follimed by uVrit Illyints RIA ji#rkljox~ "Units: .11,1011%o 11111il ilk riptil, 11'.6t0 tl~ 1-1.41.1w '61". *111KIS i--- 1, Caticawitil dowlI411111S. clay. *its WWI with Illyk-sm vtoo. fivnittl and itOo lowniAtoon wiv Inovii folti-I m. Ila, wmhed with water. oliled ,at 100", and 11111de 11110 than the NAntilikilitnt, thl fifiva Bill, Oriptill. at 12"J" 10 to 0 CO. Slict gel wa% the jiffinulattef cau. twwuct. W rt"ClIVI at Wor- I -11(liettv anti tol"i ()it at 1 00*0 00 it Catalyst was "Hatiard In a Pytrit tithe which was vlovideally Itealtil; the flvvwaf,l posts was rd" with A(SWicalslyst its so o lotelitill 1"Ovillain. , the ratillyot TT4. stoot 46AII all tv. active I.W11140"I -,( 1.4voity1rote (.11"Z NMI The sittitlucts were limokookile4l lei 4 I'toillwhililk kolutint varimmo trolsollan irsellvis whirb ii)v,4vv the total it* 0 perinjilivid oustiIjactimy ocl)"i. U artilklal mixis, III I- milli 4130 take PIIA'V' at 21111' (110 11111COMP IWILL 6`041taltif, W 21-butents. When RuOll was pimeil over Alj(h #it 37.01 I-We"t vid Wo!". 2-butent, at 230" this it 12.2 At* a of the ratio of 120 miht., the 74.9"i $3.8%, r"p. The clay ratil"I Ird to itzlMoilve 4040 I-butitne anti mi'V. -lontrov. inefravrittrinjo lovivoi-I medmillion at !NXJ* (94" tm4mrt) moo wvll It at Woo 143t~ wrov, 41 thir litillort at the C~%Iornw 4 lia- holivit 4lM%~%ortvttb- 0S0 rl~ IThr mi;. mull. voilit" tout", as 0 l,qw t litfohl 79%, I-1,111r1tv anti U-Itnitaw- 11,110, 4n4 Zia .0 1- In TOW till, 110,11.11, U-Imigne; at MI%, 400 Pumice, dow fair 0 - 40 at affl*p Atm W13151 10.4,p- I-bute" anti 2-butoone. TbOr volull. ~of, 14mlene, 65.7,11. 2-lbutem. Ill." 770 ku"tyle"Cond 3113 Is wif reporroornirtl III lots Koo - (610.3/11 - QZW, betwitea 2006 anot M . The tIcUce a( emy"Otim vskil. products Itt"Jis Imelow butror,tj r - 67 m/ at .191 I -'%Avv 20.0. M-0, O.A. anti 3.1ri, tf~p,; Or,- 14 cv.ilir. Ity this fmnasla avetil wilb the r 1. Wars, M. K,WAAPG(f If tf4t1,tW%KAL 4,4111481ble (1,01SWKIL1100 9 ir- it* 0 0' MI & S-i -#W* X 0 U AT.- Is 11,- lt~. a a. If 0 1 -0 0 a 4 0 00 4 4,04 o 4 04,0 o o'o 0 0 a 0*0 a 0 0 00 **so o 0 is 0 a * a a 0 6.0 00 1404-0-0--o-W-*0 go o 000 96,19 o so 0.0-00.0 oill 0 0 0 go b off a 06*000 **;,:*a Methylation of hydrocarbons of the olefin series. B. L, Moldavskii, T. V,: Nizovkinai and V.-R. Zhaikova, (Leningrad High Pres. Inst.)& J. t d Gen Chem (U.S.S.R.) 17, -34TM)-In a 5 u y of Elitekov's methylation reactions (J. Russ. Phys. Chem. Soc. 10, 86(1878) of olefins by Mel in the presence of FbOj, it was found that,FbO causes side reactions of o2ddative type with reduction of the oxide to Fb. It was also found that MgO may be substituted for FbO and MeCl for Mel* 2-Methyl-2-buteue (60 g.) 51 9. MeCl.'and.120g. FbO were heated in anautoclave 8 hro. at 280-900; this resulted1n the formation of 55 g.,Fb and 26g. PbC12, while the or&* products were composed of 659. -6mylenes, 11.6g. hexenehop~entmf , and 16% diamylenes. Distn.: through a Podbielniak column.indicated the presence of Isomeric amylenes in the 1st traction, due to isumerization, while in thehigher fractions there were indications of the presence of 2,3-dimethyl-2- butene, b ' 730; 2,3,3-trimethyl-l-butene, b. 780; and 2,3-dimethyl-l-butene, b 0 55-8 . Repetition -of the expt. at 2650 for 10 hrs., using 71 U. 2-methyl-2- 252 I-L-Clj and 80.g. NgO, C.,,ave similarly 23% amyleres, 27.5 d hexenes,, and 3.1% heptylenes, with 14J9.'undistd.residue; fractionation of the products ~E:ave the same distribution as above. Use of mixed butenes instead of -butene (the mixt. u d consisted of 1-butene 25'.. 2-butene 69%.. 2-inethyl-2 Be and isobutylene 6Q, gave 54.5% C5-C7, olefins, which contained 3-methyl-l- j -butene and 2-methyl-,2Zbutenei besides the products listed alove; quant. sepn. was.not perf ormed, 'G. M. Kosolanoff FROST, Andrey-YIedimirovich, prof. Edecessed]; Prinimli uchaetiye: BUSHMIN. I.M.; YTIMSKIT, A.A.; GRYAZXOY, Y.M.; MMYTIMA, X.I,.- DINTSES, A.I.; DOBRONRAVOT, U.K.; -MfARXQYA,-T.R.-t ZHMKOe A.T.; IPATITRY, Y.N.; MATKOYSKIY, D.A.; K OBOV, VA.; HOCR. T.G.- NSHTSQY, H.S.; MOVSKIT, A.T.; MINIZ. Te.l.;,RUMOVSKIY, D.M.; RTSEPT, M.Y ; SMUgBRTAKOVA# Te.Xe; STMMOVICH, A.D.; STRIGALETA 'IN *To; RTEMIT. T.K.; TILICHBYSTI K.D.; TRIM19 FROST, 0.1.: SHILTAYBYA, L.T.; SHCHEKIN, T.T.. Dawopmov. A.G.. M.M.e.nostavitelI GERASIMOT. T&.I., SKERNOVA. I.T.i red,; TOPCHIMA, X.T.1 TASTRIBOV, T.T., red.; KONMSIIKOYA, S,F,, red. isd-va; LAZARMVA, L.T., ~~Ieotedscientifio works] Ixbrannye nauchays trudy. Xoekvao Zsd-vo Mosk.univo-, 1960. 312 V. 130) Chlen-korrespondent'AN 333R .1 (for Gerasimov). (0hemistry, Physical and theoretical) bu-ylacr-ylatp-, acrylate/ 33M. exiulalf.,er, 1 5 pcmi.i3; -.-i 4, t- 1 14 Y:I; . T alilliplillifilliallhill~~,11111111,11 Im""I II II I BROUNSHTM, - I I - I r L-32754;,--& - Wovio(mv ACC'NR, AR012706 SOUIRr Un/0190/66/005/04705 X, CODE: (34/05 AUMOR: Zharikova, Z. F.; Reztsova,'Ye. V.;,Borestneva, Z. Ya.., ierow"'q, A, ORG: Physicochemical Institute im. L.'Ya. Karpov (nziko-khimicheakiy'inst.itut).' The effect of supramolecular structure in rubbers an their mechanical properties-~* SOURCE: VysokomD'lekulyarrqye soyedineniya, v. 8, no. h, 1966, 569-572 TOPIC TAGS: natural rubber, synthetic rubber,'vulcanizatlon, molecular structure ABSTRACT: The-dependence of the mechanical properties of-. j~fuctures in thAxram. vulcanizates -with natural rubberv and synthetic pokLtarene ppoy~utadiene ~%nd sodium butadiene rubbers,on its supramolecular structures van investigated. Vul- ,canized rubber with more ordered structure van found to possesi superior mechanical properties. Change in mixing temperature (in the range of 25-70C) does ~ot Big- nificantly affect1the structure'and properPee of the rubber. Structure formation::: in thiuram, pokloopreme vulcanized rubber Thubj ected to stretching vas investigated.:, by. electron microscopy. Ribbon-like structures were found -to be perpendicular, to. the applied force during stretching of vulcanized rubbers. Orig. aft. bast, 4 fig- ures and l,table. INTI. 8 UB CODE! 13.1, SUBM DATE: 05Feb65/ ORIG IMF: 007/ UDC: 678. h3' Card 678-0JAft+ ENT -G_ _46 1) IJP (C 'C ACC NR: Ar6o11484 S(XMCE COM IM/0053/66/088/003/0419/043~ !,AUTHOR: Zharkoy -ORG:, Physics Institute im. Pt It. Lebedev, AN SSSR (Fizicheskiy institut AN*SSSR) TITLE: The Josephson tunneling effect in superco nductors 1SOURCE: Uspekhi'fizicheski Ve i kh'z'41~~ 84~ no- 3,,.1966- 41g-4138 TOPIC TAGS: superconductivity, tunnel effect, wave function, tunnel current, lear binding ener67 _ABSTRACT: This is a review paper dealing the the tunneling of coupled electron J,pairs from the ground otate,(Fermi surface) of one superconductor to the Fermi f surface of another through a thin insulating layer, first reported by B. JbsephBon~ J (Phys. Letts. ve 1, 251, 1962)9 The treaiment in the article in restricted to Cbulk superconductors. Subjects treated are the general nature of the Josephson effect, a phenomenological description of the effect and the role played by the wave function of the superconductor in this description, derivation of the equa- itions forthe relation between the Josephson current and the binding energy, the influence of the presence of magnetic and electric fields, the influence of the transverse dimensions of the b"rierx the Josephson current in barriers connected C rd 1/2 UDCt_53~T.312.62 SOV/137-57-6-11190 Translation from: Referativnyy zhurnal, Metallurgiya, 1957, Nr 6, pZ57 (USSR) AUTHORS: Zharkova, Z. P., Zbacheva, Ye.I. TITLE: A Method-forthe- Analytical Precipitation of Gold With Hydrazine in Gold Electrolytes (Analiticheskiy metod osazhde- zolota solyanokislym. gidrazinorn v zolotykh elektrolitakh) 'PERIODICAL: Nauch.-issled. tr.: Tsentr. n.-i. in-t vspomogat. izdeliy i zapas. detaley k tekstil,'n. oborud., 1956, Nr. 4, pp 44-47, A13STRACT: A 10-cc test sample is, taken for the determination of Au in cya- nide electrolytes that contain 3-4 g/1 of the metal. For concentrated electrolytes containing 17- 36 g/1 Au, a 10-cc test sample is.diluted to 500 cc with water and a 20-50 cc aliquot is used for the, analysis. The test sample is neutralized with HCl to phenolphthalein and heated to boiling. 50 cc of 101o hydrazine hydrochloride are added to. the boiling solution and the boiling is continued to the complete reduction, of -Au according to the following reaction: 4KAu(CN)Z+ NZH4'ZHC1 The brown Au precipitate is filtered Card 1/2 Off and calcined in a porcelain crucible at 8000C. The Au in the bill if, M lom I -XGV-- 'Category: USWAnalyticaLl Chemistry Analysis of inorganic 0,2 substances. Abs Jour: Referat Zhur-Ehimiya, No 9, 1957, 3o966 Author Zharkova Z. P., Zhacheva.Ye. I. Tmat de-R-r-&T-ffe-MMfic Research Institute of 116xtile Accessories and Spare Parts Title Analytical Method of Gold Precipitation with Hydrazine Hydro- chloride from Gold Electrolytes. Orig Pub: Nauch.-iseled. tr. Tsentr- no-i. in-t vspomogat. izdeliy i zapas. detaley k tekstil n.-oborud., 1956, ob. 4o 44-47 Abstraett,The method,of NIGRIZoloto,for determining the AU content Of -cyanide extracts.of oret kas been modified to permit detend- ,nation of Au in gold-plating electrolytes. A swVle of the electrol, e (0-05-0-005 g AW in neutralized,to phanolphtbal- vt ein, with hydrochloric acid, heated to a boll, 50 ml of 10% solution of N cl ,~.H#-M are added and the mixture is boiled while maintaining the'volume of the solution at a constant Card 1/2 -5- ------------------- ...... ---------- ----------- ----- --------------- Category: USWAnalytical Chemistry- Analysis of inorganic G-2 substances. Abs Jour: Referat Zhur-Ehimi7ai No 9P 1957P 30966 level. The_Au precipitate is filtered off, washed with hot water, cUied and calcined at-8000. To the filtrate am added 25 ul of 10% solution of NAf.211CI and the mixture is boiled to check coiOleteness of precipitation. The calciaed precipitate is dis- solved in 5 ml of aqua regiat evaporated, and the resicbte is eva- porated to dryness, 3 times, with 1-2 ml dilute HCl -'1:3)- 3 ml of dilute HCI (1:50) are added, followed by 2-3 drops of a hydro- chloric acid solution of Br.1, and the mixture is evaporated to dryness. The residue is diluted to 30-40 mly combined with 0.1 g K-bifluoride, 2-3 drops of o-dianisiclin solution (10 mg in 10 ml HCI, 1:300) and titrated, after 5 minutesp with a solution of hydroquinone (0-4180 g dissolved in 500 ml water, acidified with 10 ml cimcentrated HC1, and diluted with dilute hydrochloric acid, 1:300, at a ratio of 1:100) until a colorless or faintly bluish solution is obtained (2AUC13 + 3C4 H,~,C., 3111 Hf O.A+ 2Au + 6Hcl) -6- - TV; 1 4 f p #-I it-it to IS u is IF Il. If *-Y# A J 40 1$ 16- K-9 a 0 0 A . a - r o -A L -91 AI Iz- I* . Iv. A t _0 JI - a ~ A - am-, - J J -As 4WD .10capt.1 4.0 Po0*80141 W". At 0 0 A ~1. 7-HAqKcVSKf)YA, 001 Doominatim of dw tMocam "dm in tm suiso in 0 gosoffhom Patleaft. ~klprklx~ snd 9 V"Wtvm- MU. ni s .00 reaction i4lr"X. f.. 'he deln, of the -0 jongpikrus antisen In the oftne when I- 09 -Genjou =.Mott' Lp%kb i%howvd a pm. licadet di 0 l kk f i t llwa amorr rkot, her mu o ves) gave a wft ev reactim in 3 cases; doubtful mwts In a con and nelt, .00 ti i i th t lth t Th l th l aoo ereari err. rexu n erm o ettos en s. cm q. ts v i 6 i- lum. cons 01 glered to be unwi4actory. A. Ce"m 3 no* 4 a* 0 goo 41 I&ER see A S A - 5 L ASCIALLUIRCKAL UTERATbRE CLOINICATWO.. if Mow Ogv 4~. 444 cNcj sails 11,111 AV 10 AV; I " IF IF III u It An I I IOd 0 1 W 0 0 a 4 3 a IZA 1l'0 0 0to 0