SCIENTIFIC ABSTRACT LEPESHKOV, I.N. - LEPETOV, V.A.
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CIA-RDP86-00513R000929320003-3
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December 31, 1967
Content Type:
SCIENTIFIC ABSTRACT
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The Isothermal Lines of thr~ 3ol,ibil4~ty of the Syotem K so -Na
at 750C 2 4 2 4
Potassium sulfati~ - (K230 4)
Leonite - (K SO 11gso,64H 0)
2 4* '
2
Langbeinite t
- (K2SO 4* 2MgSO 4)
Kieserite - (MgSO 4*H20)
Leveite - (,NU 2SO 4* MgSc 4* 215F,20)
Van't Hoffite - Olfa2so 4* MgSO 4)
Glaserite - (3K 2SO 4' Na 2so 4)
Tenardite - (Na2 so 4).
The results obtained are important for the working o'-t
separation methods of
production of poturju,"
There are 6 figures,
are Soviet. potassium-magnesium salts and for
um sulfutq.
5 tablc~, a::d 23 reference.,3, 11 of
of
th,~-
wh-*,-:~
SUBMITTED: April 4, 1958
Card 2/3
scv/78-3 -12-26/36
AUTHORS: Lepeshkov, 1. N., Bodaleva, 11. V., Kotriva, L. T.
TITLE: Investigations Concerning the Solubilities of the Systems
Li2so 4-Na2so 4-K2CO 4-H 20 at 250C (Issledovaniye rastvorimoati
v sisteme Li 25o 4-Na2so 4-K2so 4-H 20 pri 250)
PERIODICAL: Zhurnal neorganicheskoy khimii, 1958, Vol 3, Nr 12,
pp 2781-2785 (USSR)
ABSTRACT: The solubilities of the systems Li 2so 4_11a2so 4-H20 were investi-
gated at 250C. The isothermal lines of solubility of these
systems have three branches, which correspond to the following
crystals: Li 2so 4' H201 double salt Li2 so 4' 311a2so 4' 12H 20, and
Na2so 4* 10H20. The double salt crystallizes to large, perfect
crystals with the following indices of refraction:
N9 - 1-464, NP 1. 1.460. The solubility of the system Li 2s0 4-
K2so 4- H20 was investigated at 00, 250 and 500C. The double salt
Li2so 4'K2so4 and the solid solution which forms lithium sulfate
Card 112 with Li 2s0 4'K2 CO4were determined. The double salt Li 2 so 4'K 2so4
SOV/78-3-12-28/36
Investigations Concerning the Sclubilities of the Systems Li 2so 4-Na2so 4-
K2so 4-H20 at 250C
crystallizes in bipyramides with the following refractive
indices: fig . 1.474 and Np . 1.471. In the quaternary system
of Li2so 4-Na 2so 4"K2 so 4-H 20 at 250C there exist crystallization
areas of the following salts: Li 2so 4'H20, Li2so 4' 311a230 4' 12H20'
Na2 so 4* 1OH20, K2so 4, 3K2SO4 Na 2SO4 , L'2SO4 K2SO4 , and the
compound 2 Li 2 so 4' Ila 25o 4'K2so 4' There are 2 figures, I table,
and 9 references, 5 of which are Soviet.
SUBMITTED: June 5, 1958
Card 2/2
2 c 2 81
AUTHORS: Lepeehk,:)7. 1. 11. Rsma3heva. IT, N., 71 K.
TITLE: On the Pota3siam Ccntert nf Salt Dop,~,-jj,tL4 ~o T-,;t
(0 kaliyenoano-At: Folyanykh ot-1czhqn!y T:ivy)
PERIODICAL: Doklady Akactam' -1 nauit SSSB 1956 V.~ 1
(USSR)
ABSTRACT: In the dietrir-, of tho autonomo,.-3 reg-c:, rf T-j~-i aal- lakr-,
and oour,:o9 as well. ae fhr, 4a., r1Ap,-:z;,t T:,,. T,.o~
mountai:..) k-r,,wr - a ong timi i-,, th, ac-thfrn L;pz
the weaterr. Ta,in, 01-i km
of Ky;,y.l A survey of Plbllcfltifm~ u-~i
dpseript;on rf tLe lakt~s and -Vf the ;al, lep~.,Imi are
-6). In the prasort paper the salt sedim~rtq cxl tii"
Tuz.-Tag ar3 -laking into acc,.~,jzt th~
and t;thir marlr~,. sal--. In a oheoicu', con G I d,~ r
able quan'-.4.- ; vf-, -~,f po~aiaium chlorid~7, were foun,l ( ap t-~ 6'- ~!,) ~
Table I showa c,hemicil ana'Ayt:-es ~f !3,)mf? -A;il,, I,j mr,,,V~7
of which it lxz to bo Ejeen that it Jrit~i 'A
high Purthermor6 rovis of Yjorir,i;~ --arr-Led ,)~t
Card 1/2 by the M-:.ning Expeditlcn "Gorro. 1!1',~vlo.-iilneiik.~y,~
2 9 6 2 C-
On the Potassium Uuntent -.f Sal Deposit a In T!it i
ekspeditqiya 19; from diffizent
Many cor4s )y *hc.sg whi -h ~7ji a :in :1 13,7 Kr
as well as a yellsw wers 7~,A t
on this c,7-~aai(,r. p : -a jAl-,m and m agrj t Z i d 't. a
ed out ta a hign Aria'ys&Ll ~f ---:!nta.r1ir;g
clusions within Qove4 are shown -~y tab:t- 2. F-j,r- 2 shcws
the di9tribitior. c-f --E-ar, war,;~r it; T-ipti d-~-irig Uppe: Si,;iriun.
aad Lower Davoniar- from which th-.~ mer;tionel dc~p~3its
originatp. There az-2~ 2 figur&4 2 tabies ar,~!
6 of whi-h ix~ Sovi--it.
ASSOCIATION: Institut :)b,3hch-3y i n9orj3anich4-jKC.Y lm. N. S. Yiirr)~Azc- i t
Akadem-'4i vauk SSSR .:f Gt-n:~:-v and
imeni N. S. Kurnak,:,i AS USSR;
PRESENTED: September 14~ 1957, by I. I. Chernyaye-), 1,11ember. Acaaemy of
Sciences, USSR
SUBMITTED; September 5. 191513
Card 2/2
AUT110il,S: Lepashkov, 1. 11., Yh. B., JC*1/2o-12(j-1-21/(,F
TITLE: Carnallite and Sl-n~,enito in the Doposit of the Sultlal:e of
Dzhmk3y-Klych(Pr_;,,ral1ye) ( Karnallit i ninCenit v o1,lo-.1._--niyakh
solyano,go ozera Dzha':sy-Klych (PriarLllyo))
PERIODICAL: Dokl--dy Al:ademii S,SR, 1950, Vol. 12o, Nr 1,
PP- 03 - 85 (USSR)
ALSTRACT Cal ium-containing mi.,.orals occur verb- rarely in the deposits
of recent salt la!-cz;. The la'-a -.cntiQneO. in the title cont.,.14,nine
the deposits mentioned ir, situated 2o km north-c"ot of Ara-11-
okoye. Be3ideo concu!;Lv:ttr,,(1 wAt nollitiono, aloo ,i~At dapr).-its
in for;- of astrach-~ni',c (Na2so 4' "";S04"11120), mir,;~Jilit(!Ia2so..
4
.1011 0), tenardit (Na,SO and _-.a,-nenium culp~i_te, hepta-, he."i
2
) and fi-
wid pentahydrate zand further :laii~-erite (Na 2SO 4-~_ so
4
nally i;ypsite (CaSO 4* 2!120) occur here. The total thicknnoo of
the layer reached 4,5 to 5m. Underneath a thick uji,cr layer of
nL1t the two firzt-ne,-,tio.-,Pd :,iinerals are to be fouIO in the
Card 1/3 orfler ri,,entioned. The ,ulphato hydr-tes occur in for:i
Carrallitc -.nd Sjn,:enite in the Doi)o.-it of t!i(- S It- JOV/2o-12o-1-21/63
la':e of Dz11v_,'.rj.--Kljch (Priarallyej
of crystals in the lorter d.,.rt of the astrachanito lzLyer to-ether
with gypoite. Betwocn the cit.:.1ern of crjEstals thin cryst~~Ili:.(_,
inclusions of the latter mi7.eral, oyn.,,-'enite, and Mi;-pentuh4r-
drato (table.1) are to 1~e found. Cryatal-optical const~i:.to of
sjnthetic and natiira.l syn.-o.,ite .ro mentioned. The heati;ie' cui-ve
of the sodium chlorite of V.-in 1,,~!:e ncntioncd shows thu=al
effects which indicate a conter.t of ayn6enito and antracb-tnito
and also of the hydratoi mentionefl( figure 1). The for::.in,,- of
oyni,enite is probably t; rcoult of interaction between Une iJ~o
Gult nolutions containint; KC1 u.) to 2~ and gypoite. Syri,,enite
is a rarety. Its oynon~,mus 13 c.-Juncite (Reference 2). T.e cry-
stallization of carnallite was broujht about by evaporation of
salt solutions in sum,-xr. In addition, the magnesium 3ulphate
hydrates and binchofites (11'e'l
41:. 6H20) mentioned are for;ied. Tzilb-
le 2 describes the che7~ical anVmineralogrical analy3is of tKe
salt of the lake slirface, fiL-vre 2 shows the heating curve of
this salt, which consint3 of thQ three laat-mentioned salts
(includine nacnesium nulphatc-hexahjdrite). There are 2 fi6urcz,
Card 2/3 2 ti.,_blea and 2 refereizcesp which are Soviet.
Carriallite and S,7nL;enite in the De~josit of the Salt- 60'1/2o-12o-1-21 /67
lake of Dzhakay-laych (Priaraltye)
ASSOCIATION: Inatitut obohchey i ncor,;anichaskoy khinii in. IN. S. Kurna%ova
A!,ademii nauk SSSR (Inutitute of General and Inor6anic Chemi-
stry imeni N. S. KurnakovAS USSR)
PRESENTED: Nove;iber 1, 1957f by I. I. Chernyarev, Memberp Academy of
Sciences, USSR
SUBMITTED: October 31, 1957
1. Inland waterways--Sedimentation 2. Minerals--Sources
3. Minerals--Chemical analysis
Ca-d 3/3
LIPISUDY, I.N.; UJK'YANOVAS Y".1.
Physicochemical study of natural salta and watqr - nalt
systems of the sea water type. Itogi ritukle. Xhim.muki 4:
62-91 '159. (MRA 13:4)
(salts) (Systems (ChomiatrY))
5(2) SOY/70-4-8-42/43
AUTHOR: Lepeshkov, -1. N.
TITLE: Symposium on Geochemistry, Mineralogy, Chanis.try, and
Chemical Technology of the Mineral Sa2ze in Berlin (German
Democratic Republic) (Simpozium po geokbimii, mineralogii,
khinii i Irbi-Joh aka4 tskhnelsgi~. minerallnykh salay v
Berlins (GDR))
PERIODICAL: Zhurnal-neorganichaskoy. kbisLii, M9, Vol 4, Mr-B,
pp 1939-1940.(USSR)
ABSTRACT: The symposium was convened by the (East German) -Academy of
Sciences and took plaes-froz Jun 16.,22, 1958. Representatives
of scientific institutes, and, antexpriaes of halur y of the
-Ga.rman D%ma~x&tic.R*pu]Pl1cp.tb* Sc,YAAt.Un4-n, Francs and the
G&xxan Fsd&z&l.Rsp"1Ac.a.Lt&nd*d the Aympaa-tum. 2.a Ise-tures
were heard, -Tht.f ollowing Savlst aoientlsts- took part: from
the Inatitut,ob-shahey i nearganiAhaskay k-himli -ime N. Be Kur-
nakeva AN SSBR ("stituts. of-Gaaaral axLd Inorganic Chemistry
i.mani S. S. rurnal-ov of the AS USW.: .1. 11. Lap2zhkav, AN. P.
Luzhnaya, M. I. Ravich, G. S. Sedellnikov; from Moskovskiy
gosudarstvennyy universitet im. M. V. Lomonosova (Moscow
Card 1/4 State University imeni M. V. Lomonosov): M. G. Valyashkol
SOV/78-4-8-42/43
Symposium on Geochemistry, Mineralogy, Chemistry, and Chemical Technology
of the Mineral Salts in Berlin (German Democratic Republiz)
from the Vaesoyuzayy wmahno-isaledovatallskiy Institut galur-
gii (All-Union Scientific Reaearob. Inatituts for Halurgy):
Vs, V. Vyazovey and A. V. Zdanava"y4 from tba Lenlngradakiy
elekt rot sichn' ahsakiy ijutitut (laningrad Inatitute of Electri-
ca.1 Ugineezing): YA. 1. Al-b-mayj from the LsningradjJdy
vaesoyusnyy nauahnooisAlsdaystallskiy inatl-tut geologii
Arktiki (Leningrad All_qCnian Satontifiz Reasarcli lastitute for
the Geology of the kr-ati-a) No S. Spixo,; from the Solikamakiy
kaliynyy kojabinat (SaliJcamzk Pollan-i-In Kombina_t): A. K. Shi-
shakoy,, and from the BAr-azoileavakiy kbimiabasIdy kombinat
(BereznIki Chemical Yeahinat~): V. Me NasteraWco. The representa-
tives of the USSR dalLverad the following lactuxes: Is No Le-
peshkov: "On Some Inveetigations Carriad out by the School of
No So.Kurnakey in the Fiald..af Physizo-chemioal An&lysis of
Natural Salts and WAtax - SA'It' - Equilibzi* in Systems of the
Unrins, Type"i No P_. LuAbmaya (an her own babal and on beha. 1f
of th4 co-author Yee I. Luklyanova): "on Metamorphization of
Natural Brines of Marine Type"I G. S. Sedelinikov: "On the
Card 2/4 State of the Hydrochomical Processes and the Formation of
SOV/78-4-8-42/43
*Symposium on Geachemistry, Mineralogy, Chemistry, and Chemical Technology
of -the--Minaral Salte..in Berlin (Goxnan Demorratiz Re-public)
Card 3/4
Salts in the Kara-Sugaz-Gal Bay!'; Me Go Va4azhkol. "The Most
Impartant GeochemicalCharaotariatio Valuas, Which Dat.ermine
the Formation of Me I. Ravieb: "Hete~rcv
geneaus Squill ri in Slatema.WiLtAr - Salt at 11igh.Tezparatures'l
A. V. ZdanovAkiy: "lave sAlgatizn of the..Xine.tias of the Dis-
solution. of Natural- Salta!,; V. V. VyazayDv 110.n the Investi-P
gat,i."z of tbLa_A11.L#Uniou Scientific Researoh Institute of
Halurgy in the YialA of the Processing of Potassium SaJAs". The
folloxJLng Raxt Goxman experts. dollvered reports: 1. Rombok,
W* Huppe,.. Ca M"r, W. Jung, 0. i~raxahtdl, As. Harmann (Inatitute
of Mineral Salta) r*poxtad on..txace alamenta in salt- and xud.
sedizoAts (ma, Za, Fk, Sn, Al-sta). Gx"t a-ttantion is paid
to, tha agredhemIcal., efle(tt-af, thase alamenta whIALh penetrate
the soil with the pot&ssium_far_tilix*x. pxofAaxor F. Sarovy
(Director of the Institute of Mineral Sal-to of the.Aqadazy of
Sciences Berlin (Beat Garmany)) reportaA -on the composition of
carnallite aad the utilization af magn sium cUarjAs lyes.
Fe Buoh (Scientific Research Institute of the potassium indus-
try, Sondershausen) dealt with the dehydration and the de-
composition of biachofite. Me Tittel reported on the gradual
SOV/78-4-8-42/43
Symposium on Geochemistry, Mineralogy, Chemiatryt and CbAmIcal TachnOlOgY
of the Mineral Salts in Berlin (German DwwazatIa Rapublic)
dehydration of carnallite. The Thaelmann"Kali-Kombinat and
various towns of East Germany were visited.
Card 4/4
:51C2), 3(5)
A 1j TH oil Lepeshkov, 1. 11.
scv/7116--: - I o --,' -,/"0
TITLE: Fhyoical-chemical Investigation of Natural Salts of Tsaidam,
(Chincse People's Republic)
PERIODICAL: Zhurnal neorganicheskoy khimii, 1959, Vol 4, Nr lo,
pp 2414 - 2415 (USSR)
ABSTRACTs Thc, Toaidam Basin lies in the province Ch1Jbg--hai,-1-n the north-
east of the lake Kuku-nor (Abstractt:r1,, No,~u: Ubviourly a tjpo-
graphical error, because Tsaidam lies in the ;;eot of Kuku-nor).
In 1958 the author participated for three months in the work
of the physical-chemical expedition of the Academy of Sciences
of tho Chinu!ie Pcoplr,03 Republic with the ;,iim of invusti,,,uting
the salt deposits in Tsaidan, on the strc.ngth of the %ereement
concerning scientific cooperation. In this basin there are
numerous large salt lakes, the concentrated brizirz of z-hich are
L1. The fialt dfpo.9itn cont-tin Na"'] , ,.%irsibilite,
rich in K, blj,~ B, I
A
(Ila 50 1011 0), aotrakhanite (Ila SO ilgso 1,11 0),
2 4* 2 2 4- 4- 2
(KCl.11gC1 2- 6H 20), borax (Ila2B407* 10H20), bornantroc~~Icite
Card 1/3 (Na2 O.CaO-5B20 3* 16H2 0). (Abstracter's Note: ~:hould correctly
Phyqical-chemical Inves*tigation of Natural Salts SOV/78-4-1o-40/40
of Tsaidam (Chinese People's Republic)
be called boronatrocalcite) and other salts. In thg, basin and
its neighborhood there are boron-containing sprin -.9 -x~ich are
0
partly hot. ~~uite recently petroleum, mineral coal, iron ore,
sulfur and ores of non-ferrous metals and rare metals w;-,-re
found in the adjacsnt mountains. Since a railway is planned to
this area, favorable conditions are to be expected for the
development of the chemical, metallurgical and petrolt.-Um in-
dustry. The Institute of Chemistry of the Academy of Sciencr;s
of the Chinese People's Republic has started in 1957 with the
investigation of some salt lak.Lo of Tt~%idaza. The expedition in
1958 was headed by Professor UU Ta-kang.Chemistsq Geologists
and technologists of the Inotitatt of of the Academy
ersity, 0f the Institut 'in
of Sciences of the Pekinj Univ 0 of k -
.uroXiiftw Materials of the 1.1inistry of Geology, of the Shanghai
Scic:ritific Research Institute of Chemical Industry and of the
Adzinistration of 11alurLry of the Mini.9try of Conzamcrls Good
Industry took part. The salt deposits belong to the first class
of salt lakes according to the cla3nificat-ion of V. S. Kur-
nakov, kcademician. Figures 1 and 2 show strange crystal for,-13
Card 2/3 of rock salt and gypsum. The mineral lf_ii.~Ln.-s wers, ~;ubmitted
Ph,ys ica I a 1 Inv L-s t i~,_-t ion of *;,at ura I Sal tf, L, OV//7F,-,; - 1 ri-4o/4 o
(Chinc-se Pf.,01,11!'s lif-public)
to the Chair of Chc-,_istry of th, Lien-chou Jnivursity. The pre-
--aration of borax and potas-.h ftrl-il i...r his already 7c-t ill at
tht, big hikes. The nathur also %iunt-iunn tv",e. nu.-;~,roLIO iror,
i;iultin,g, furracf!s and plants foi- pPtrr_,1eu,,:,. di5tillatiut, cstab-
l;
1:0!~,d by the people. Thorn, -ire 2 fi,~urcs.
AS~;,-CIIATIG:;: jn~:titat obshch(-,y i neurganicheskoy khi:.-iii i,-.. N. S. Karnakova
Ak~idf,mii nauk of Gc..--ral and Che:-A-
stry imeni N. S. Kar.,.ukov ol' thc- Ac;a(dQ1-;,j of Sciely-cei, U21SR)
Card 3/3
.-IXPZSHKOV. 1.N.; SOLOVITIV, V.I.; HIM, G.H.; KOLOSOV, I.S.:
IMIMSKATAt A.G.
Calcium content of natuxal gahs of Krasnoyarsk Territory.
1tv. Sib. otd. AN SSSR no. 1006-46 l6o. (MIRA 13:12)
1. Institut obahchey i neorganicheekoy khImU iment N.S.
Karnakova i Xhimiko-metallurgicheakiy institut Sibirskogo
otdoloniya AN SSSR.
(Krasnoyarsk Territory--Calcium salts)
XMRIPIN, L.A.1 LXPXSEKOV, I.N.
16 -
Pbysicochanical study of the system Y04 - C52SO4 - A'2(SO4)3 - H~O'
at 500o Mur.neorg.kbimo 5 no.2:481-49) r 16o.
(HIU 13:6)
1. Yaroolavskiy gosudaretvemW podagogicheskiy institut imeni
I.Do Usbiaskogo.
(Potassium sulfate) (Cesium sulfate) (Aluminum sulfate)
'IWAMN 0 I&NO
On -the one hundredth anniversary of the birth of Nikolal Semenovich
Immkovo Zhure zieorgt khim, 5 no.3.1-.2382-2394 N 160.
(XIBA 13:11)
(Kuxmkovs NlkDW Sememovich, 1860-1941)
LIMHXDV, I,N.; MUSHOVA, N.N.
Solubility in the syst a IA SO - Na 50 -
Zhur. neorg. khim. 5 n:.Illj~j~_25172N 460.
(Lithium sulfate) (Sodium
(Ha~esium sulfate)
MgSO - 9 0 at 750 C.
4 2 (KOU 13: 11)
sulfate)
S/030/61/000/003/011/013
B105/B215
AUTHORt Lepeshkov, I.N.0 Doctor of Chemical Sciences
TITLEt Physicochemical analysis and its application
PERIODICALt Vestnik Akademii nauk SSSRp no- 3P 1961p 115 - 117
TEXTx The 19th Kurnakov lecture was held in Moscow in December 1960,
and the IV vaesoyuznoye soveshchaniye po fiziko-khimicheskomu analizu
(Fourth All-'Union Conference on Physicochemical Analysis) took place from
December 7t to lot 1960 in connection with the hundredth anniversary of
the birthday of N.S. Kurnakov, Soviet chemist and metallurgist, who deve
loped the physicochemical analysis. Over 1200 representatives of scienti:
fie institutions and industrial enterprises of 67 towns of the Soviet Union
participated In the conference. In the Kurnakov lecture, I.V. Tananayev
analyzed the role played by phyeicochemical analysis in modern chemistry
and technology. 142 reports on problems of physicochemical analyses of
metals and semiconductorst salts and solutionsp silicates and inorganic
polymers# organic systems and other substances, and on the application of
Card 1/4
S/030J61/000/003/011/013
Physicochemical analysis and B105/B215
physicochemical analysis in analytical chemistry were given at the plenary
and sectional meetings of the conference. Purthermoret the following re-
ports are mentioneds G.B. Bokiy on the determination of the composition
of imagirary Kurnakov compounds by the methods of crystallochemistry and
physichochemical analysis; V.I. Mikheyevas on the correctness of the
assumption regarding berthollides as chemical compounds in which a conti-
nuous transition of several valence stages takes place; V.Ya. Anosov
mentioned the agreement between special points of Mendeleyev and the sin-
gular points of Kurnakovj V.K. Semenchenko presented some new problems of
physicochemical analysis In connection with a more ample knowledge on
phases and phase transitionsi by studying the equilibrium between phases
in aqueous salt systems at high temperatures and pressures, M.I. Ravich
obtained results of fundamental importance for the development of the the-
ory of solubility# and the explanation of conditions for hydrothermal syn-
theses of orystalst and the examination of geochemical processes in the
earth's crust; V.I. Spitsyn and collaborators showed that preparations
of radioactive elements have characteristic properties depending on radi-
ation phenomena which occur In the interior of a solid substance and are
reflected by the properties of its surface. 0.S. Ivanovt on phase dia-
Card 2/4
9/03 61/000/003/011/013
Physicochemical analysis and os, B105YB215
grams and phase transformations of uraniumt plutonium, thorium, zirconium,
beryllium# and other metals and their alloys, and their application in
modern technologyj N,Po Luzhnaya, N.Kh. Abrikoeovp,V.G. Kuznetsovs on
the production of new semiconducting substances on the basis of studies on
complicated systems and the separation of phases with semiconducting pro-
pertiesl N.V. Ageyev emphasized that a neutron diffraction study of the
spin superstructure is required for an insight into the behavior of atoms
and electrons in metals and alloys. I.I, Kornil-ov reported on groups of
elements forming continuous and restricted solid solutions or metallic
compounds with metals of the periodic system. A number of reports dealt
with the physicochemical analysis of systems including rare metals, non-
ferrous metals and actinides. Despite considerable success in this connec-
tion, the insufficient rates and volumes of studies are emphasized, mainly
in the fields of crystallochemistry, thermodynamics and the development of
a modern theory on metal alloys. N.K. Voskresenskaya, and A.G. Bergman
reported on systems of salts and oxides of various metals in molten s tate,
and on salt - metal systems., S.I. Vollfkovicht on the application of
physicochemical analysis in the production of mineral fertilizers; I.Ne
Card 3/4
5/030/61/000/003/011/013
Physicochemical analysis and B1051B215
Lepeshkov on the development of WsS# Kurnakov's ideas on the investigation
of salt equilibria and their application for the examination and utili-
zation of natural salts of the eastern and southeastern rayon of the
countryt Turkmenistan, Kirgiziyap Uzbekistan, Belorussiyaj and other
salt-containing rayonsand the production of mineral fertilizers and rare
elements used.in modern technology. The conference outlined the possibi-
lities of further studies in the development of theoretical problems of
physicochemical analysis and its application for the solution of problems
in national economy and modern technology. The necessity for a coordi-
nation of the work conducted in this field by various scientific insti-
tutions of the Soviet Union is emphasized.
Card 4/4
5/078/61/006/001/010/019
B017/BO54
kUTHORSo Loposhkov, I. N., Fradkina, Kh. B.
TITLIj Study of Solubility at 5000 in the System
Li, Na 1180 4' CO 3 - H20
PERIODICALs Zhurnal neorganich eskoy khimii, 1961, vol. 6, No. 1,
pp. :199 - 207
TIM The authors studied t go solubility in the quaternary system
Li, N&JISO 49 C03 - H20 at 50 C' and determined the crystallization ranges.
Results are shown as Anooke diagrams in Figs.2 and 3. Fig.1 shows the
distribution of crystallization ranges. The following ranges were found3
U2 CO 31 Is.2 C034H20, No2CO Y2N&2SO 40 Na2soVNo 2s0 4' U2 so 4P and Li 2so 4'H 20.
The crystallization range of Li 2CO 3comprises the major part of the
diagram. Table 3 gives the ratio of components of simultaneous
crystallization Li 2C03 + No2 CO 3' 2Na2so 4* Fig-4 shows microphotographa of
crystals from Li 2CO 3 + Na2 COY H2 0 (a), L12CO3+ Na 2s04 (b),
Card 1/7
Study of Salu'bilitY at 500C in the System S/078/61/006/001/010/019
Lip N&JISO 41 003 - H20 B010054
Na2so 40 Li2so4(Y), and Li2so 4'H20 W. Fig-5 shown thernograns of
Li2CO3 (a), Li 2s0 4'H20(b), Na2so4 + Li2so 4* Na 2so4(v), and Li 2CO3and
Na 00 2N& so (gl. Fig.6 shown the distribution curves of components
2 3* 2 4
between liquid and solid phases in simultaneous crystallization of Li 2C03
and Is 200 3v 2's'2804# Hence it appears that limited solid solutions are
formed in simultaneous crystallization of Li 2 CO3and Na2 CO 3* 2Na2so 4* The
crystallographic investigations were made by M. N. Lyashenko. G. G.Urazov,
Z. I. Lifetoya, P. S. Kindyakov, L. S. Itkina, and N. M. Chaplygina are
mentioned. There are 6 figures, 3 tables, and 21 referencesi 12 Soviet,
3 US, I British, 1 Canadian, 1 French, 1 German, and 1 Italian.
SUBMITTED: June 2, 1960
Card 2/7
L%jv3
0
S/078/'1/006/GO1/010/019
3017/BO54
% . /I
Card 3/7
Nijus
Card 4/7
S/078/61/006/001/010/019
B017/BO54
41f
L;7j
7,
J3
S/078/6 1/0006/001/o1 O/cl 9
BO 17/305 41
15,72
lily,
47
ulcoj ed
NaZO4 LA*UA
Card 5/7
S/078/61/006/001/010/019
3017/BO54
v
fie".j
d .
Card 6/7
I
z 4. S"4 =0 1400 'Coo ISVO
Na C03 to io 40 19 1/# Sal
Ili UJ,:a HO N.7 IOOA'a#,-! C.7.78~
S/07 61/006/001/010/019
B017YB054
Legend to Fig.Is Crystallization fields in the system Li, Nallso 40 CO 3 -H20
at 500C.
Legend to Fig.2s Solubility in the system Li, Nallso 4# co 5 -H20 at 500C
in the range of cryetallization of Na2co 3* H20, Na2CO 3' 2Na2SO 49 Na2SO 41 and
L12c,~31 a) moles of H20 per 100 moles of salts.
Legend to Fig-3t Solubility in the system Li, Nallso 41 CO 5 -H20 at 50 C in
the range of orystallization of Na 280 4* N&250 4' L12SO 40 U2 so 4' H2 0, and
M2 C03; a) moles of H20 per 100 moles of salts
Card 7/7
"ARM
3/078/61/006/006/013/913
B110/B206
AUTHORi L!pe~~hkov, I,_ N.__
TITLE: Fourth All-Union Conference on physical-chemical analysis
dedicated to the 100th birthday of S. S. Kurnakov
PERIODICAL: Zhurnal neorganicheskoy khimii, v. 6, no. 6, 1961, 1490-1492
TEXTt In his lecture on the theory of metallic alloys, N. V. Ageyev
pointed out the necessity of the determination of the spin superstructure
by neutron-diffraction studies and the determination of the dependence of
the properties of metals and alloys on the spin order, to obtain a complete
characteristic of the behavior of atoms and electrons in atoms and alloys.
I. I. Kornilov studied the mt~allochemical properties of the elements on
the basis of the ratio of the atomic radii, the electronegativity, and the
types of the crystal lattice of the elements, and in his report tried to
divide the groups of elements into sections, which with the metals of the
periodic system form continuous solid solutions, limited solid solutions,
and metallic compounds. It was established that the majority of the
Card 1/3
3/078/61/006/006/013/013
Fourth All-Union Conference... B110/B206
metals which form continuous solid solutions in binary systems are con-
centrated in the group of transition elements with unfilled d-electron
shell. Startink: from the proposed classification of the types of reactions
of metals with other elements, different compositions of the metallic
alloys with any given number of components can be anticipated. The
lectures by N. P. Luzhnaya, N. Kh. Abrikosov, V. G. Kuzneteov, and others
dealt with data of physical-chemical investigations of the phase diagrams
of systems containing As, Te, In, Bi, S, etc., in order to prepare now
phases with semiaonductor properties. The neoessity of investigating
'phase diagrams in very close concentration intervals due to the effoot of
slight admixtures on the semiconductor properties was established. Apart
from clarifying the effect of the phase composition on the semiconductor
properties, the degree of dispersion of the phases, their behavior in thin
layerst the transitions from amorphous and glass-like states into
crystalline ones, etc. must be considered. The lectures by 0. S. Ivanov,
Ye. M. Savitskiy, v. F. Terekhova, Ye. 1. Gladyshevskiy, N. N. Zhuravlev
and others dealt with physical-chemical analysis of metal systems with
actinide part. A remarkable success was achieved in the investigation of
Card 2/3
Lis
S/076/61/006/006/013/013
Fourth All-Union Conference... B110/B206
phase diagrams of alloys on the basis of plutonium , germanium, uranium,
rhenium, cerium,lanthanum, niobium, vanadium, etc., and in the production
of alloys with properties of special interest for the new technology.
[Abstracter's notet Complete translation.]
Card 3/3
~7 ./
s/u oi/ 6 o /0, A
A U,; 1: d L T
T IT ME- o u b i I i t y ziys t em L ~'C, i.,. S 0
H20 at 50 anJ 1%~u C
P--.RIODICAL: Zhurnal n9orvan14_,ht!:3^cy Khi-mii, v. o.. ric b
16111 1 7 CJ I
T_:X, - The i,,-, t1je fOU1'-1*Un",.,1.i_,r.t i,_ 1 "t r~ SU,
B-,O at 5',-, and 1UCo^U and tLe cryota. liz~it; . n zoni;.; c1' t hc- L;. S P11c, .
Li,50 Na 50 Da SU 5 K SO Va Sov K~"__,U, i'l "So il.;, "'11 j
Z, 2 49 2 41 2 4' 2 r I , z A , I
2 L1,_,SO Na SO K 50 salts were -tuded. The follox;rv, c r 7 1 a t i u n
t- 4' 2 4 2 4
zones occur in the three-~omporlon:_ :~ys,em 1-, 0 , H
COO,C: Li 1H 0, Li z;0 4 ., Tf i WJ 1 - I e S 11 t S 1 .3 0 11 J
4' 2 4'
solution with lithium Sul f a The c4ol..d ;-:i to z, t, 100 C 13 .,ery
Card 1/5
0
6olubility %tudy in tLe ,ystem.
limi ted. Ti--ree er.,iot ).-~rmi c ef fe!- t.;; upr,,~ Le c-' -.h,? J-
0
L i S) 0 K so ~1,ilu. 417fect at 44U C C,01,f:71C-Cpt"~UF
4 ' ~) 4
of this salt Irorr, ttif.-LY- into tLe 0,- a I S C
indicates a roi.ymorri,ous tr,An3furrdtion,
rielt:rg F.~-Jn, of ttiin In tr.i?
4
H,C), also a Jou~ le sal t apt ea o r::, i, Oz .3 o. u o r. s 1~
r o t a s s um nu k- . C r.,-:, t ci I I z a t I o z 1 d 1 u r
0
5 0 C i n t t. e s.v r, t ipm Li 2 Ila 2 60 4 K i,-j Al H Fi Li tS
4
Li Li SO 6". .... S~) 6j 3C , (i ::j K SC)
1 4 C 4 z
T',: -- r. r:f.9 a i i z % t, i ,, ri ;.One of the ~' Li 6 "j' i3 u* C i.., C
twice its ot 11 f U r ti
End o t h,~ r.;,,; c t f ~c t i p pea r C-11 trie t;P I [It' Of t t, 1 S
salt at ard i0o' e f f (,~ C:
d e hy 1 r a t i o r . Tl;e crynt;11.9 of *I.e SO .,.;a ~O K,~-
2 j 2
C;, rd 2/5
B/078/61/,-06/007/011/.014
Solub4lity study in the system ... B121/B207
a rhombic lattice and -the following refractive indiceat 119 - 1.486;
!,.-n - I - A 60; Np. -z 1.477. The crystallization zone of the Li 2so 4-K-2504 salt
incree.qes with tonnper4i 'lure irvl.~ease that oil the Li SO Na SO salt also
2 4 * 2 4
increases i~t'a tempt-rature r 15 E! Cf hXM 5 0 to 1 OOPC. A t * 2 50C, this salt dpes not
exist, but a double salt of the following composition: Li2 s04,' 31-a2so 4' 12H20.
0 0
The crystallization zone of 61aserite in smaller at 100 C than at 50 0, the
crystallization zone.of potassium sulfate also decreases at a temuerature
rise. Figs. 3 and 4 show the isothermal lines 0of solubility of the system
Li 25o 4 -Na2so 4 -K2so 4 -H20 at 50 and at'100 C. The crystal o ptical
analysis were carried out by M. N. Lyashenko and N. N. Romashova. Therevare
5 figures, 3 tables, and 12 reference9i 9 Soviet-bloc and 3 non-Soviet%-bloa
The references to English language publications read as follows: L. t.
Rogers, E. R. Caley, Ind. Eng. Chem., 1.~, 209 (1943) A. N. Campbell, E. M.
Yartzmark, Canad. j. Chem., ~6, 171 (1958)
su~~.=,T:-~D: "Une 15, 1060
Card 3/5
LUESPYOV, I.N.; ROMASHOVA, N.N.
Solubility in the system LICI - NaCl - MgC1 2 -H20 at 25 arIA-75".
Zhur.neorg.khim. 6 no.8:1967-1971 Ar 161. (MIA 14:8)
(Lithium chloride) (Sodium chloride) (Magnesium chloride)
-LEFESHKOVP I.N., doktor khim.nauk
Phyficochomical amlyala and ito application. Vest.AN SSSR 31
no.3:3-15-117 Mr 161. (MIRA 14:3)
(Chomistryi, Analytical)
ILPESHKOV, I.N.
Outstanding chemist and :7esearcher of mineral resources of our
ccnmtry; on the 100th am-liversary of U.S. Kurnakov's birth.
Zap.Vses.m:Ln.ob-va 89 no,6:691--698 161. (MIRA 15:5)
(Kurnakcrv, N:Lkolai Semenovich, 180-1941)
LEPESHKOV, I.N.1 ROMASHOVA, N.N.
Solubility and solid phases in the system LiCl - NaCl - Y9C12 - HZp
at 25 and 750, Izv,AN Kir.SSR.Ser.est.1 tekh.nauk 4 no.903-40
162. (MM 16W
(Chlorides) (salts) (Solubility)
KURNAXOV, Nikolay Samenovich(decoaped]; zwkGoTsEv, o.re.,
doktor khin. nauk, otv. red. 1 b=j%QYO-1J. , doktor
khin. nauko otv. red.; VASILITEVA, Te.A.9 red.; LAUT,
V.G., tekhn. red.
[Selected works] Izbrannys trudy. Moskva, Izd-vo AN SSSR,
Vol.3. 1963. 567 p. (MIRA 16,10)
(Chemistry, P)Vsical and theoretical)
UPESHKOV, I.N.,; FRADKINA, Kh.B.
Study of malt equilibria in the system Lij Na # ~04, C03 - H 0 at
Wirco Zhta;.aeorg.khim. 8 no.2t447-456 F 163. (MA 16 15)
1. InstItut obahchey i neorganicheakoy khiaii imeni N.S.Kurnakova
AN SSM.
(dialts) (Phase rule and equilibrium)
LEPF,SIIKCV., I.N.; BODALVA, N.V.; KOTWA, L.T.
Solubility in the system
(2LiCl +- K,;,.B4 GZ,;f'2F,01 4- L12B40'7) + H20 at 25* . Zhur.
neorg. khin,. 8 no.11:2597-2602 N 163. (MIRA 17:1)
1. Institut obstichey i neorganicheskoy khimii imeni N.S.
Kurnakava AN SSSR.
9*1
MAKIN, A.V.; LE,PESHKOVP I.N.
Salt equilibria in the system NaNO 3 - Ila2so 4 -Ila 2HP09 -a H20.at 250.
Zhur. neorg. khim. 9 no.2:495-498 F164. (Mli(A 17:2)
1. Yaroslavskly gosudarstvennyy pedagogicheskiy Institut imeni
K.D. Ushinskogo.
LEPESHKOV, I.N., doktor khim. nauk
.
Gifts of the sea; natural saltz as a valuable raw material
for mineral fertilizers. Priroda 53 no.2:65-69 164.
(MIRA:17:2)
1. Institut obahchey i neorganicheakoy khimii im. N.S.
Kurnakova AN SSSR (Moskva).
IEPESHKOVI I.N.; BORISOV, V.M.; SHAITIMINIKOVA, A.N.;
Separation of natural polytalits salt in
prom. no.6:437-439 Je '64. (,4-IRA IP,:7)
FAIM,A, I-';'
~Szla
potasuium 3alt FOte-,tlal of dri'.-'-:rg =ids Of :-
Zhur, neorg. khim. 10 no.3:684-686 !-L- 165. Olilp.'~ 18:7)
TURNETSKAYAt A.F.1 LUM14.- 11K. ---
Solubility in %be system KC1 KCW H20 at 25 and 50110, Zbur.
neorg. khim. 10 no.9s2163-216*6 S 14-0 (Min 18: 10)
136h0
ACC NRt AP600(Y765 OURGE CODF: UR/00711/1,r,/Olf~/()]-'/.~845/?847
AUTHOM Plyushchavi V.' Ye.; 1,nrjeqhkavp 1. No
ORG: none
TITIE: Second aU-~nion conference on the rare alkali metals
-.1 1
S(XJRCE*. Zhurnal neorganicheakoy khimii, V, 1.0, no..12, 1965, 2845-2847
TOPIC TAGS: metalluigic conference, chemical conference, alkali metal, cesium,
lithium, rubidium, metnl compoun(l, w4al -xtr-ricH nn, rn-l,al puri f i r,:0 ion, ion
exchange, inorganic synthesis, ch-mif~sl, polyh-didfi milt-, phane dirigrran,
solubility, aqueous PoluLian
.ABSTRACT: The Second AU-Union on 10re Alkali K-taln was
held 13-16 October 1964 in Novosibirsk jud was johitly slionsfired
by the Siberian Department and DcJ-3;-tr-tm of F'hysical (7hernistry
and Technology of Inorganic Mateviah, of the AS USSR, the Ussit
State Committee on Coordination of Scientific Hosearch, And Lite
Novosibirsk ' see'tion of the All-Union Chemical Society Im. D. 1.
Mendele-ve ! More than 50 scientiff-cPapers wern h-dealt
with general subjects of the synthesiS and properties of the rare
alkali metal compounds, methods of determination, extraction,
separation, and purification of the rAre alkali metals, chemical
Card 1A
L 13640-66
I ACC NR, AP600
interactiono in aqueous solutions and melts of their compounds, and applications of
these metals and their compounds. There was a significant nwnber of papers on the
,synthesis and properties of the compound4t The following topics were noted in
this category: new data on zirconates)-drid hdnate of alkali metals-
(plyushchev, _V, -Ye, , and A, A, Grizik); fluorozirt4nates and flu-
orohafn~ies Of'R*b and Ci' L V-, and 4 S. Guzeyeva);
reactions of hYTr_O_XIfhes-and carbonates of the rare alkali metals
with hydrogen peroxide (Dobrynina, '.V. A., B. S. Dzyatkevich, N. A.
Akhapkina, and A, 1. Chernypheval- cesium superoxide nd ozonide
(Vollnov, I. I., and V. V. Matveyev ; thermal stability dRb and Cs
compounds (Breusov. 0. N. I. Kashina,, G. V, Revzin. N. A.
Druz'. A. 0. Lesovaya, P. D. Komissarova, and R. M. Shkj2yEka
Za);
lithium ln-oh-y-d-r-i76-and-g-a'n-gH-y-d-ride jbipov, S. W4, and V. 1.
Mikh~yeva); lithium,-'And boron lb~mplexes (Arkhipov, . , Gt_ Ye _ -
-Revzin, and P. D. Komissarova); ton-ex Oange properties of ferro-
cyanides and application in the extractioxi of the.rare al~~ metals
_(Kozlov a,. ail -exchangelVo f
j-A. S d Yunden Mizhidtvn).- ton perty o
granulated n- ielln
- Ic ali metal ferrocyanides (V
S. A. Kolesova, and A. F, KalashnUnYab amalgarn, ethod of pre-
paring Rb and Ce hydroxides (SAjyzrjmko_,_ff_r. A,~W.
Smirnov) and LI reduction on the I!jijid ~R s ~ev and 1. V.
-gallium cathode (Ponomarev, V.P.
ir-'A 211. 74 ~1_ 7 1
L ~3640-"
ACC-N- f.
Y,i;~W, V. E. Pormbavey, and A. I. Zazubin)-. Three papers were ri-ten M Rb and
Cs determination by different methods. Mine papers dealt with extraction
of the rare alkali metals from raw materials, six of them with Li , ono with fib,
and two with unspecified alkali rrwtal5. The following paporo were tilite,l in f-he serieJ,
on separation and purification: s,-tvirntion of t1w rare alk-0 i by continuous
counter-current ion-exchangr (Gornhkov, V, Cr. Ni. Parirlirnhov,
iG. M. Gulynyeva, S. N. Dniitriy(, , N, N. Savviikova nml (;. X1,
Tveam separation of Li front evi-tairi alka )k it-tit
M ali e:
metals by ion-exchange (Suvorovskaya, N._ A V. V.
and 1. A. Sbmarinova); purification tif Rh and Cs coti?potlrlds by
crystallization (Vulikh, A. 1. , A. 0. I'vsovayaf V. A. Ka7-Iniinskaya
P. Zherdiyen D, b7'm. A i1i"p-OV, and 11. Al. Sliklovskaya); and
preparation okhigh-purity CS and.its conipounds (Gulyayeva, G. Al.).
The papers on 9e1T_s__a!naqueous solution_-- or salts of the r,-im,
alkali metals attracted special attention. G. V. Sanisonov reported
on the nature of the chemical bond and phase structure of the rIL'C
alkali metal compounds with non-metallic elements and Indicated di-
rections to follow in the synthesis of these compounds with given pPp-
erties. Two papers were noted on the phase diagram of fused salt'sys-
tems MeC13-RbC1 and MeCl3-CSC], where Me = Ga or In (Arbekov.
Sryvtsev, and Ye. S. Petrov), and MeCl-Sc,03, where
V. N. , V
Card
ACC NRs AP6000765
Me = Li, Rb, or Cs (Fedorov, No YA., and Ye. So Petrov)o The.aqueous, salt systems
were treated in sevefaT-Fapers, one whicfi was on so ility at 25C in the Cs compounds
K compound-H~O system (Kirgintsev, A. U., and L. No Truohnikova). Three papers
dealt with polyhalide systems as a meuis of purification of Rb salts (Kuznetsova,
V. I.-Safonava, and Do a. gteRilq Fakeyev, A. A., 10 No Kulyukin, and B. Do
t-ISI-tepin or Rb and Cs salts (Stepin, B. D.p__A_.V. Babkov, and To M. Sas). Two of
several papers were noted in the category of applications; vitreous lithium
silicates (Dubrovoj So A-i and the effoct of Rb and Ca oxides on the properties of
vitreous and crystallized silicates (A;--.ekseyeva, Z. D.). The Third All-Union
Conference will be held in 1968. [ATD PHoss 4169-F I
SUB CODE: 110 07 / SUBM DATE: none
-L 1685o-66 EWT(m) RH
7XV Mt AP6=818
AUTAORs Lepeahkov, I*
ORG,. none
Tr=t Ninth Mendeleyev Conference
SOURCE CODEs UR/0078/66/on/001/0228/0230
SOURCE: Muirnal neorganicheskoy khimii, vo 11, no* 1, 1966, 228-230
0
TOPIC TAGSj chemical conference. food tecluW1019y', agriculture science. chardstry,
fertilizer, organic synthetic process
1 ABSTRACT: The 11inth Mendeleyev Conference on General and Applied -Chem-
istrZ was held in Kiev, 24-21 Ma 1965 More than 2200 delegates
from Soviet organizations participated in the conference, including
200 academicians and 400 doctors of sciences and professors. Repre-
sentatives from other Communist countries were also present. The
conference was opened by Academician N. M. Zhavoronkov and
P. Ye, Shelest, First Secretary of the Central Committee of the
Ukrainian Communist Party.
,.Card UDC: 54406s3
L 1685P,-66
ACC NR: 'AP6002818
Further development of the chemical industr)and agricultural
'chemistry was the main topic of the conference, with production of
mineral fertilizers. leading the list of topics. It was indicated that the
percentage of useful components inmineral fertilizers will increase from'
the present 25. 4% to 36% by 1970. In his discussion of synthetic food
products, Zhavoronkov indicated the need for methods leading to the di-
rect synthesis of edible compounds from W2, air, and water. Acade-
micianA., sme ~anov also spoke on the production of synthetic food.
'Several papers were devoted to the chemistry and technology of ferti-.
lizers, agricultural chemistry, economics and planning for_the expansion
of agricultural chemistry, etc. Resolutions of the conference outlined the ma3m
tasks for progress in chemistry, chemical technology, and large-sco2e expansion
of agri ult al chOmistrye It was decided to hold the Tenth Mandeleyov Conference
in 19670 FA4 PRESSt 4186-6
SUB CODEt 07, 02, 06 SUEM DATEs none
rd 2/2 -)Ilii
_V,,_OOqan IXanoqph- MEDVEDEV, Fedor Konstantinovich;
IF,f~ESf[Y
IQ k_
LUSHCHEVSKIY) V., red.; AKIS, I., tekhn. red.
(From the bottom of the sea]So dna moria. Riga, Latviiskoe
gos. Izd-vo, 1962. 196 p. (MIRA 16:1)
(Baltic Sea-World War, 1939-1945-Naval operations-Submarine)
PLYUSHCHWs V*Yei; STEPINA, S.B.; LEPESHKOVAl L.I,
loo(tri)polyhalides very similar in properties to alkaline
metalej, and their use in the removal of cesium from rubidium
campoundso Dokle AN SSSR 3.48 no-3t6OI-W4 J& 1630 (MM 102)
1. Hookovokiy institut tonkoy khimicheskoy tekbnologii im. M.T.
lamonosova, Predatavleno akademikm I.Va, TananayevZm.
(Halides) (Mbidium: compounds) (Cesium]
S/020/62/143/006/019/024
B106/B138
AUTHORSj Plyushchev, V. Ye., Stepina, S. B., Stepin, B. D., and
Lepeahkova_,_L. I.
TITLE. Heterotripolyhalidea OP allcali elements with similar proper-
ties and their importance for the production of pure
rubidium and cesium compounds
?BRIO DICALs Akademiya nauk SSSR. Doklady, v. 143, no. 6, 1962, 1364-1367
TEXT: The possibility of producing pure Rb and Cs compounds via complex
heterotripolyhalides is thoroughly discussed with the a'~,,' of 27 refer-
ences. A method developed by the authors (V. Ye. Plyushchev, B. D. Stepin,
Author's certificate U55R no. 1326-27 (196o); B. D. Stepin, V. Ye. Plyu-
shchev, Author's certificate USSR no. 140051 (1961)) provides for the
production of Rb preparations containing inly O..0002~ potassium, from
industrial RbCl containing 2 K. Rb preparations of such high purity
had not been obtained by methods described before. In the present simple
and economic procedure, RbCl is twice (first in aqueous solution, then in
0-5 M acetic acid) converted at 90'7C into the complex Rb LI(ClBr)j-H20'
Card 1/3
S/02 62/14 3/006/01 c,/024
Heterotripolyhalides of alkali... Blo6%13a
which is then decomposed by heat:~'ng to 4000C. A further method developed
by the authors for producing pure cesium bromide by precipitating the
complex ceuium di-iodo bromide, CaBrI., from aqueous-alcoholic solution
(S. B. Stepina, B. D. Stepin, L. I. Lepeshkova, V. Ye. Plyushchev,
Author's certificate USSR no. 15E927 (1961)) is discussed in detail. Two
applications of thin process proauce cesium bromide of 99.95~4 purity con-
taining 0.02~~ Rb and I Uev. For measuring the background the specimens were replaced by
carbon discs.. The neutron energy opeotra were determined for N 900 + N2700
ani 14 30 :~ + N1500 and were found to be of equal shape and similar in position..
Numerical calculations were made outhe basis of the evaporation modeli both~
for Bi and Au the theoretical curves show qualitative agreement but they
are somewhat steeper and their tail is shorter by 2-3 Mev. The character-
istics of the neutron levels excited in Bi and Au are given as well as in-
dicating the possible transitions a.ad thair relative intensities. Part of
the data is taken from Rose et a!. (Phys. Rev., 102# 1613P 1956), There are
5 figures and 3 tables#
ASSOCIATIM Fizioheskiy* institut in. P. N. Lebedeva AN SSSR (Physics
Institute imeni P. M. Lebedev AS USSR)
Card 2/2
VA-,11-TIUA, G.'!
ic(Iltilily V.V.t
"Angular and Energy Distribution of Photoncutrons,"
Lebedev Physic3 Ins t . Acad . 1,1-,~ttf %, Un-*,-,-,-,,:;I ty
a' - !In"! L,.v
hysics, III)Scov, 1~,-27 INOv 57.
L 1362L-1�1 Wr~w)/Ms wrelm
Mt APJ60 8/0056/6VO"/006/1787/1799,15ff
AUMOR., zatsepinal 0. N. j Igonin, It. V.; Zazareva, Le Yes Lepeatk1n, A. 1. 53
TITLE: Angular and ezergy dietribir.Aons of photoneutrons from bis=xtb,, sold,.
and Untalum
SWRCE: Zhurnal eksper. 1, teor. fiziki,, v. 44, no, 61 1963P 1787-1799
TOPIC TAGS: photoneutrons angular distributions enera.dintribution, biwmth)
~gold, tantalum,, giant resonance region
,ABSMCTs The angular and eneror distributions of photone~trons frcm bismuth,
:gold, mid tantalum irradiated by X-rays of peak energy 14 end 19 VeV were
,measured in order to study the interaction between Gamma quanta, and heavy nuclei
-in tta region above the giant resonance. The work was done with the synchrotron
.(30 YAV) of the Pbysice Inatituteo Acadevq of Sciences SSSR, The photoneutron
spectra vere registered by their recoil protons, using nuclear emulsions, which
were. scanned under microscopes. Summar7 spectra were obtained for the neutrons
emitted at right angles (90 and 270") to the x--my beam, and also for the anacs
.30 and 1500, Their experimental results were compared with calculation rmde by
..the.avsporation model and by the independent-particle model. The neutron energy
Card , 1/2
L 13621-63
AC=SIO,Y I%:, AP3DO3099
regions in wMch the various calculated and experimental d1stributions agree
and disagree are discussed in light of the possible shone and possible transi-
tions to vhich they can be due. "The vork vas done at the PbWeics Institute.,
.Academy of Sciences SSSR.. in collaboration vith the staff members of the
S.aratovckiy gosudArs;tvenzW*y universitat Im. IT. B. ChernIshev&iy (S=toy State
tlniversl:!~:.) X. Y&. Avdokushim, L. V. Barenova, and 4. P~ Bo helped vil th
';;~Ion~sp for Mch the a-u-thors eVress their deep grati-
,tthe scwning of the
.tude.- Origi art. has., 2 foroLlmo 9 figures and 3 tables,
ASSOCIATION % Flzicbeakiy institut ime P. N. Lobedeva Akad-li nauk SSSR (Physics
:1natitutej AcadezW of Sciences S=)-
%Mmrr=: Owsn( 53 D= ACQ: 23Jul63 ENCL: 00
SM CODE 1 00 NO MW SOVS. 003 anw: 023
Cord, 2/2
0.1
ixT.,;AKIIIv V.Ya. (1"U,',, Chov)
aola-LiomAiiij imt-vaen 'At.
v slL%-oIo no. 6:41-45 Y-L 160. (;Ji-:. ll,:2)
(I;athcmatics--%~'ttdy and teaching)
(PhyL;i,-u---StLdy and teachirj)
't 30)
Uj* 'We
F for Vol
ms Li5t, Of
-an Acce,991---
-as 1f,
,3co-luer
::o 14,
F'C, V.
.1,Friculture-I'lant a:-,(i Ani--iali inc!u~txy.
S~iark f.*:3hing. p- 71.
Vol 4, No 5, 1952.
,last i~urot)--3an Accessluns List. L'Ijr:~rv of
Vol 2, 'Ilo 3, X.,arch
LIPETIC, V.
*Findings Of Fish Species Unkowm In The Adriatic.* P.1 (BIWES".
Vol. 40, NO. 3, Nov. 2, 19W, Split)
SO: Monthly List of East Buropean Accessions, Vol. 3, go. 3. Librari cf C,~agrevv,
March 1954, Unole
ZOYA,X.F,.-
4M
Dysing natural silk witb acid-mordant dyes. Izv.Tys.ucheb.zav,;
tekh.tekst.prom. no.4:1133-170 158. (WRA 11:11)
1. Leningradskiy tekstIIIny7 Institut imeni Kirova.
(Dyes and dyeing--Silk) (Mordants)
AVIRBUKH, Sh.Kh.; LEFEMUl M.K.
Dyeing of natural oil): Yith acU-mordant dyes by the zethod,
of subsequent chromir%. Izv. vys. ucheb. zav.: takh. tekst.
prom. no.3:126-134 159. (MIRA 12:11)
1.Leningradgkiy taketillay Institut Ims S,M, Kirava.
07eiv and dyaing--Bilk)
ALTIRBM, Sh.Kb.; LIIPITKOVA, X.I.
Dleing natural silk with acid mordants with the single
bath method. Report 16-3. Izv.vys.ucheb.zav.; toich.tekst.
prom. no.1:121-128 160. (MMA 13:6)
1. LeniWadskiy tekjjtillnyy institut im. S.K.Kirova.
(Dyes and dyeing-Silk)
IZBEDEVA, L.V.1, inzh.j ILMOV. V.Aq, k#nd.tekhn.nauk
Reinforced rubber diaphragm with eM tips and a rigid center.
Vest.maBh. 42 no.1+04-55 Ap 162* WIRA 1514)
(Diaphragms (Mechanical devices))
9 .6 t . I . .
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mwr %An i- first "mtrrf with vu"nilinj nr yuk-4niAINA" prtamlling InImanort
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Aa a A I -L-1 a 0 p 0 A I I v y AA 1111 Cc Is taI f 1 4A 6
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in-uli- surf44v .4 The 401 Awl thir wit~kk virl~v ,I If- -0 %
0 lul* are q-,Vrfrd with lurtornintir plot lxh-cr um.-iling Ilir
00
a lul-w into tJ- shell. After the tube j. in-eted the bok is !,
f v"111calkisird and the rublwr is -wirlded" lo the nittal. Go
A. Pestoff
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Smp" pra"S"S doftg "IKOA* and dry* of
so, c~UW*so Gbm V, G *Aal-vhntk-w atul V. A. 1AVetamr.
,r Mew. larju Ckem. Tetk. So, 3. NJ~ 113 1 m Ru4sibs 114,
17. in Pngli%h 117 cf. C. A. 31. KIENO.
Avqlrwtl natural mm;~ narrmixed coquwa and wtArW
telluiew, filort wrtr teftt4ettly %aid. with wairf vapur,
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After tim,piv Ir &IFF, thry had )JAP, ;P
;
wairt "Inripmrcl with an mignial nionfurr clinical 4A O.K.
00 8; ).',x and N' for%. rr,4,. [be little, ortlnurd for "Futpliric
0 0'r 1.aln wA. 11-7.5. 1M.7, and 'vii.ol fit. . #-p I ii. .,I
twin tafra-,re 114km a rwrialmliar flirvr. I it. Ints-ilifir .4
a4lu'ri-lorm 1, 1hir %alln, lot IlIffIrflf4d and fifilli. lal tyl.,
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Os, Kam"h
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UNTO, V.A.; OKOHONESHNIKOVA, S.M.. redaktor.
[production -of rubber technological articles] Proizvodetvo
resinovykh tekhnicheskikh lzdelii. Moskva, Goo. nauchno-tekhn. izd-vo
khim. lit-ry. 1946. 173 (i.6. 373) P. (MLRA 7:5)
(Rubber Industry)
USSR/Physics - Compression 1 Nov 53
"Static Compression of Ping-Shaped Flat Rubber
Washers," G. M. Bartprr-v, 11 A L,~petov and V. 1.
Novikov
DAN SSSR, Vol 93, No 1, PI, 15 18,
.Discuss relaxation ciirves (kg/cm2vs hours) of
washers made of 3 tnes of SKS-110 rubber. Refer to
the related work of 7 A.
jV, Trudy MITKhT Im
Lomonosova (Works of th- Mos,.'.nw Tri;at of Fine Chemical
Technology im Lonnv.,.)5,)v),VoI 1; (19,13) Presented
by Acad P. A. Rebind,~r 4 St~p 53
275T87
17P'
Vidy- AfOAw. too- r4oW XFZ7
Okm Ak.; tOK $0, 1425f.'11,Ix UW64 (lk~*d
an GOV 43541 and #w*Y'n a p"Wuhm A'P'W" .2
stud) pVV ". sbklqmt bulkstion of Cho pol"k of
Omaha fonrAttan., re"I pnuirlscantahing
am".Idw" polywi&dieuk. and
wit i=
bvntthkx*t d1rulphide and magw4ioni eitibi-buL
A: wtth 60 9 7 %IUjCdUjFjd (MM 0 t42
(at pdCoewsp at atultid
rabound. mwm Ewudmm. Jon" hacdpmft~ [MoKet
stmVk-"d $t&MM thmnal smbili()r. o~Tho
gvbouwt Curm *110AV 0. alAT dip to a Ininiln"an.
U01 k a rjd6t,"U. the luillflnum
witatfig aw Point of etsm-ata formt1m, whilo Ow
Curl(w of 4h.6 atlwt &w%&AnCm diow anly Ilight
tnvalu4 It say, at this pd".. -A temla4tro r9th
curve 9f ww4ther totntound dKrwtt a pemkk, OK-TI 4
mialmus, 004 tholl a sfu%rp fiso tovellknx 001 this
wo givw no eumf wication pt 060flito fom4aibo,
(or it is pattty 6dlt&wC4f by att*r t%*Cfiwt4. In
"413punmix without OcakfAtIL(Cal (110 mb"WA ~Urvft
IN, rma"Ar Wom (Impiling to (ho mi"itnt MD.
AVRASIH, Ta.D., kandidat tokhnichaskikh nauk; BNEG, P.P., professor,
doktor tokhnicheskllch nauk, BXRNSHTRYN, R.I., kandidat takhnichookikh
nauk; GICNIHOZOV, ?,A., starshiy nauchnry notrudnik; GLIM, B.M.,
inthenerl DAVIDOVSKATA, Te.A., kandidat tekhnichaskikh nauk: TILCHIN,
P.M., inshener; TARAMIN, N.I., icaadidat fiziko-matematichaskikh nauk;
IVANOY, D.P., kandidat tekhnicheskikh naulq "TOROZ, L.I., Inzhener;
KOBRIM, X.M., knndidat teklmiiheskikh nauk; KORITSKIY. V.G., dotsent;
IMOTIOV. D.V., Inzhener; KUDRTAVTSIV, I.V.. professor. doktor takhni-
chaskikh nauk; KULIKOY, I.V., kandidat tekhnicheskikh nauk-,.IAMtlY--
V.A., kandidat tekhaichaskikh nauk; LIKINA. A.Y.. inzhener; HATVIUV,
A.S., kandidat tekhnicheskikh nauk; MILIMAN, B.S.. kandidat tekhniche-
AM nauk; PAYLUSHKIN, N.M., kandidat takhnichookikh nauk; PTITSYN.
V.I., Inzhener [deceased]; RAKOVSKIY, V.S.. kandidat tekhnicheskikh
nauk, RAXHSHTADT, A.G., Itandidat tokhnicheakikh nauk; RYABCMKOV.
A.Y.. professor. doktor khimichaskikh nauk; SIGOIATEV, S.Ta.. icandi-
dat tekhnicheskikh nauk; SHIRYAGIN, A.P., kandidat tekhnicheekikh
nauk, SULIKIN, A.G.. inzhener; TUTOV, I.Te., kandidat tekhnicheekikh
nauk, XERUSHCHOY, M.H., professor, doktor tekhnicheskikh nauk.
TSTPLU, 1.-0., kandidat tekhnicheskikh nauk; SHAROV, M.Ya.. inzhener-,
SHXRHAN. Ta.I., doteent; SIMLEV, B.A.. kandidat takhnichookikh nauk;
TUGANOVA, B.A., kandidat fiziko-matematichaskikh nauk; SATELI, X.A.,
doktor tekhnichookikh nauk. redaktor; SOKOLOVA, T.F., tekhnicheskiy
redaktor
[Hachine builder's reference book) Spravochnik mashinostrottalia; v
shesti. tomakh. izd-vo ma3hinostroit. lit-ry. Vol.6. (Glav. red.toma
X.A.Satell. Izd. 2-oe, ispr. i dop.) 1956. 500 p. (KLRA 9:8)
(Hachinary-Construction)
124-1957-10-12184
Translation from: Referativnyy zhurnal, Mekhanika, 1957, Nr 10. p 136 (USSR)
AUTHOR: Lepetov, V. A.
TITLE: To the Calculation Involved in Design Projects on Technical Rubber
Products. Memorandum V. Particular Applications of General
Equation for the Design of Pressure Sleeves (K raschetu proyekt-
nykh konstruktsiy rezinovykh tekhnicheskikh izdeliy. Soobshchenie
V. Chastnyye prilozheniya obshchego uravneniya rascheta
napornykh rukavov.
PERIODICAL: Tr. Mosk. in-ta tonkoy khim. tekhnol., 1956, Nr 6, pp 141-158
ABSTRACT: The strength of rubber--cord pressure- retaining sleeves sub-
jected to internal pressure is examined; the construction of the
casing is assumed to be performed by braiding or seaming the
fabrics under a 450 angle; the results of numerous experiments
on tests of the strength of the sleeves are presented. An approxi-
mate calculation is described for hollow annular packings, consist-
ing of a closed tubular collar and used for hermetic seals wherever
a rigid packing cannot be used; the determination of stresses is
conducted according to the usual formulas of momentless theory
Card 1/1 for a toroid container. V. 1. Fcodos' yev
UWZTOV, V.A.
Behavior of industrial rubber materials under conditions of
shear and torsion. Kauch. I rez. 16 no.6:18-22 Je '57.
(MIRA 10:10)
l.Mookovskiy institut tonkoy khimicheakoy takhnologii im.
MqV. Lomonosova.
(Rubber--Testing) (Strains and stresses)
JP
I J1
it
Ila
60VII38 -58-6-6/25
AUTHURS: Su..harc-v, A. T. ard lue-,etov, V.A
TITLE: Ra3istance to lllydraH~;:~~~le;zible ?re4jure
Pi,,o.i with Braided 1,11,~tal Reinforcement (0 soprotivlonii
lavloniyu na,)orny,,h ru'r:,O-Lvov
'far' opletok)
11 1,.ijom iz T
PERIUDICAL:
J Ila 4 II'L
lir 6, 1)1j ')U - 24 (U'-SR)
ABSTRACT: Fif)xibio pru-l..;ur~j .;ith bruided meta-1
are manufactured iri Ru-~jia with intornal diairett,,r3 a,,
0 , - Fle-,'ibl--m ,r: I ipes are cons truct~3~1,
_,I I U
5
bajicaily, wilL,"a., in%emial rubber liner, a cDttc,n and
pa or !,-,Yr,,r, ar rubber layer, one or more
A
layo-r-3 of braiding wit'rh rubber layer.~ between
them,7 a fttr-lhor cct-G~-,n and ~.a-)er layer, and a final oj-.~-
,;rote~ctiv,) of rubber. Conventional t.ietaods cf
I
calculaiu-in- ~-o hydraulic pressure of te::'L-`]
covered -I)il)ej are given in roference.3 1 - 7. wi th
braidad r.-ietal covur~;d jAj,cj.;, the loadj from hydrauli,;
proj3ura are ajsumod to be ratc,ined entirely by the braids.
Card 1/6 Starting from equations (1) ani (2) for thin shells whic'i-I
are not L;ubjected to bending moment, equat-ion.; (3) alvil 0-)
SOV/338,-58-6-6/25
Resistance to Hydraulic Pre3suro of Flexible Pressure Pipez with
Braided Metal Reinforcement
are found for the tangential and axial stresses in the
'braid. K is the (tensile) load on the individual wires
in the strand, n is the number of wires in a strand7
m is the density of the strand pacicing (i.e. the
reciprocal of strand sdacing). The angle 0( is the
angle at which the strands lie to the axis . (This is
drawn incorroctly in Fig 1). Equation (5) defines m
in terms of N, the number of strands (or spools) which
cro3s the circumference of the braid, the braid diameter
being dl. To meet the condition of equal strength in
-tangential and axial directions2 the angle is usually
made 550 441. In this case the relation between the
internal pressure, P, and the tensile forces in the
individual wires, K, is g1ven by equation (6). Here,
the terin, i, is for the number of layers of braid, and
C a constant which takes into account manufacturing
variable3. Equation (6) is satisfactory for textile
Card 2/6 braids or for the ca3e of one layer of metallic braid
(i = fl, but not for two or more metallic braids. The
sall3s -58-6-6/25
Resistance to Hydraulic Pressiire of Flexible Pressure with
Braided Eletal Reinforcement
equations which follow, lead to equation (18) which states
that the pressure bet,,reen the -two braids (in a ~i,je with
two braids laid u,'P at the 'equilibrium' angle above)
amounts to one third of the internal pressure. That is7
the inner braid 3arrios t,..io-thirds of the load, and tae
outer braid one third. Equation (19) is develo,jod for
the case ,.there tho two braids are separated by an int-,r-
mediate non-motallic layer, and have substantially
different dianieterj. Equations (22) and (23) are
developed for the case where three braids are involved
(assumed to be of jub3tantially equal diameter). I i er e
the inner braid t-iiLes -57U of the pressure, the i.,iiddle
braid take3 285t and the outer braid takes .145 of tho
internal pressure. Finally, a general equation (26) is
giveng which can be a'pplied to pressure pij)es with any
number of braidj$ and which takes into account differencaj
in diameter of the 3ucce:;jive braids. The conitant, C11
Card 3/6 which enters into this equation takes into account
inequalities in stress in individual wires. Empirical
SOV1138 -58-6-6/25
He:-,istanco to Hydraulic Pre3jure of Flexible Pro:;jure Pif.e.; with
Braided 111'etal Reinforcement
data shows that this constant is very nearly equal to 1
in the case of a single braided pipe. Variations in
tensioning are greater in pipes wiih two or more braids,
and a value C = 0.9 is fairly satisfactory for double
braided pipes. The data given in Table 1 compares
actual bursting pressure with calculated bursting pr03sure.
Calculated pressure is based on individual wiresowith a
tensile strength of 15.4 k-. The figures in brackets are
calculated bur3ting -,ressure, with constants, C, ap:)lied
as above. The agreement is reasonably good. Further
investigation was riade in order to determine the actual
stress in the braids. Strain gauges of 0.03 mn diameter
wire were bonded to the braids. The gauges were firit
calibrated by applying thera to strands com,)osed of 10
individual wires, each wire being 0.3 mm. diameter. The
calibration curve is shoun in Fig 2. Figs 3 and 4 show
the results of tensiometric tests on actual braids in
Card 4/6 38 r,.im and 50 rwi diat~.qter pi-oes respactivoly. The points
on the3e graphs are the actual tensions as determined by
SOV/1138-58-6-6/25
Re3istanco to 7`lydraulic Pre3-3ure of Kexible Pressure
Braid?d Met~Ll Reinforce-ion',
the calibratod sturain gaugoj, and tho solid lines repre-
set-,b the values calculated from equation (26). WI-i
ta -;et of -oints on a graph, the
.ere are more than one -1 Q
different- -;et3 are for the different layers in a 7,-,Ulti-
braidt~d ~)ipe. Table 2 com.,jures the actual bur-;tInIr
A*
prez;~;ure of 3" ai id '0 pipes wilth the
C".1-cillated uccording to equation N and to ecl,..~-ticn (26).
Pil-le.-, writh one, two, tuliree and fcur layers of bTjJd
L
te ~ ted. Coeffici-nts2 C, of 0.9 were aI~.~)Iied for
bruids, of 0." Fcr -Uhree braids, and of 0.75 'or
braids. Differ-,rce3 in a6reement ray be attri")ute-I
"Uho f a P-',- th-- 'u- the braiis wur e not, laid u .) exa c "Lly a
I e(it:ilibriuml anz;l-;~ of 51FO 410 1 and were not 0-
S-,~~Iced identically. The author-1 cGnclude that tli,,-
Card 516
SOV1138 -58-6-6/25
Resistance to Hydraulic Pressure of Flexible rressure Fi.1-es wlith
Braided Yetal Reinforcement
results of exTerinents with standard Droduction .7ressure
flexible pipes, and also with s,~ecial test pipos of
38 mm and 50 mm diarmter, confirm the validity of the
calculations and equations given.
There are 4 figures and 2 tables, 8 references (1 English.
7 Soviet)
ASSOCIATIM llauchnoissledovatellskiy institut rezinovoy
promyshlemiosti (Research Institute of the Rubber
Industry)
1. Pipes--Prenvure 2. Pipen--Properties 3. Plpes--Coristmietlon
4. Pipes--Tent resulU
Card 6/6
AUTHOR: Lepetov,,. SOV/138-58-11-6/14
TITLE: Calculations on Pressure Hoses of Fabric Construction
(0 raschetakh naporxqkh rukavov z tkanevymi prokladkami)
PERIODICAL: Kauchuk i Rezina, 1958, Nr 11,.pp 21 -25 (USSR)
ABSTRACT: The theoretical section of the article gives formulae
relating the burst pressure, PB I of a hose of fabric
construction to its internal diameter dk 'to the
strength of the fabric material K B I to the number of
layers of fabric i and to the "packing density" and
angle of lay of the fabric as made and under pressure
a. and a.B . Coefficients are introduced to deal with
stretch and change of diameter, change in angle of lay
and unequal distribution of stress between the layers
in multi-layer hoses as pressure increases to buret
pressure. Eq (3) contains these coefficients. The
ftnetions of cc, and aB take care of chg-nge in angle
of lay and "packing density" as pressure increases.
C~ deals with wall tldckness-diameter ratio under
pressure, C" deals with unequal distribution of stress
Cardl/4 2
SCV/138- 58- 11-6/14
Calculations on Pressure Hose,3 cf Fabrlc Constru--tion
between layers and C 3 daals with stretch in the fab:-i,--,
If the initial angle of lay (xK is 450 and the angle of
lay under re8sure is asaumed to reach the equillbri-_m
angle a0 M 44'), theL Eq (4) applies. This ia
corrected by coefficianz C 5 In Eq (6) where the angle
of lay at burst aB Is not the same as the equilibri-.1m of
angle a These coefficients, with the exception of C"
0 2
for strength distribution between layers, can be found by
direct meadurement on pipes under pressure (w--tb extra-
polation to burst pressure), and so coefficient C~ can
r_
be determined by compariaon of a,~tual burst pre3su-r-e with
calculated burst pressure.
Tests were made on boses 2c mm, 355 mm and 51 mm diameter,
with different numbers of' layers of reinforcement. The
coefficients C~ , C 3 and C 5 were determined by
measurement of fabric matarla],_ uLder tension and of pipes
Card2/4 under pressure. An assessment of probable values of C~