SCIENTIFIC ABSTRACT BRITSKE, M. E. - BRITVIC, M.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000306920018-2
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: June 9, 2000
• Sequence Number: 18
• Publication Date: December 31, 1967
• Content Type: SCIENCEAB

IMITSKE, M.E. -9 red.; BRONSHMN, A.H., red,; MATUYEV,
N. I., red.; POLYAKOVA,
FILIMONOV, L.N., red.; TRUSOT, W.B., takha.red.
[Papers read at the SeconI A-11-Union Conference of
Spectroscopic
Assayers of NonferrouB Metals) Materialy 2-go
Vaesotutnogo sove-
shohnniia spektrookopistov-analitikov tovetnoi
metallurgii. Red.
kollegiis M.BeBritake. i dr. Hosiva.
Nauchno-takhn.ob-vo tsvetnoi
metallurgii, 1957. 128 P. (MIRA 11:3)
1. Veasoy=noye sovesbehanive
spektroskoplatov-analitikov tovetnoy
metall ii, 2d, Moscow, 1955.
UlNonferrous metals) (Assaying)

BRITSKW, H.N.
Investigating conditions for ionization and
excitation In the
plasma of an are dischargee Fizesbor. no*4:338-341
'58.
(MIRA 12-5)
1. Gosudaretvennyy nauchno-iseledovatellakiy
institut tevetnvkh
metallov.
(Electric discharges through gases)

AUbIORS: Pr Burovoy, I.A. SCV/136-5-E-5-~-1/2-j
'21TLE-. AutomaLic Flame Spectrophotometer for Finding the
Contents of Metals in Process Solutionj (Avtomaticheskiy
plamennyy spektrofotometr dlya kontrolya soderzhaniya
metallov v tekhnologiche3kikh rastvorakh)
PERIODICALS Tsvetr-yye Metally, 1958, Nr 91 PP 39-42 (USSR)
ABSTRACT: The authors point out the advantages of flame
spectro-
photometry for the rapid. analysis of eg. electrolytes
required for the automation of production 1-.,xocesses.
They note that flame photometry has not been much used in
the USSR and attribute this to lack of standard equi-pment~
Suitable for Works use, and go on to describe equipment
(Fig 1) developed by themselves and intended bot-h for
ra-lid continuous analysis and automatic analysis of
laboratory samples. In this the test soluticn is sprayed
with the aid of compressed o;~ygen into a flame in front
of the slit of a W-2 monochrorator, The combustion is
automatically controlled by pressure regulators. The
intensity of the lines of the element being determined is
Oardl/3 measured with FE-U-19M, or FEU-22 photomultipliers
for the

SCIV113 ED- 58-0, --A /2 1
Automatic Flame S7,ectrorhotometer for Finding the Cop-tents
of Eletals
in Process Solutions
visible and infra-red ranges, respectively. The voltage
to the installation is stabilized by a standard type PR
stabilizer and rect-ified by a type PT rectifier. The
measuring bloc'-K consists of a cathode repeater and a
type EPP-09 recorder or a type EPD-R controller. For
automatic analysis of 3araDles a special arrangement embles
1-2-ml samples to be dealt with at a rate of one every
seconds. The nean error of analysis is under 2jZ.
With sim-)le nrecautions the equipment remains stable (Fig 3)
and need not be calibrated more than once per shift. The
authors intend next to produce the equipment in a form
suitable for installation directly in the works. An
Card2/3

SOV/136-58-9-8/21
~xutomatic Flame Spectrophotometer for Finding the
Contents of Metals
in Process Solutions
experimental batch of automatic flame spectrophotometers
is now being produced by Gintsvetmet.
There are 3 figures and 1 table.
ASSOCIATION: Gintsvetmet
1. Electrolytes--Analysis 2.
Spectrophotometers--Applications
Card 3/3 3. Flames--Spectra

~28 (5)
AUTHORS: Britake. m.,&~,,Lavrovat Ye. A. SOV/32-25-6-26/44
7--71. -C
TITLE:
Application of the Photo-.91actrio Stylometer FES-1 for the

Analysis.of Nohconductivs~,Powders
PERIODICAL:
Zavodskaya.
laboratoriyal 1959s Vol 25t Nr 8, PP 970 971

(USSR)
ABSTRACT:
Vor*oomparlsoa ain6n-resolved: beam'of'the arc is beinK T~sed in

-the instrument FES&I-,- which-oauses difficulties in the
analysis

of._powders~ Therefor~;.a light filter'was inserted in
the.,chan-

ne17 in the.presen't c~:se., which filter'yermits the
passagelof

,only a narrow wav e-range of the spectrum. To
stabilize the in'--

tensity of-thespeatrum. the blowing-in-of the
sample method ac-

dording.-to A. K., Rusanov was applied.-* Sodium
is used as. in~Ler

btandard-Detdrminations pf lead,-zinat and
copper'on ores and-

flotation residues .of,the, lead-zinc
production-w .ere made'(Table)l

the influenoelof the blowing-in
velocity-,-of-,the current.in-,

tensity of the-.ard And the
chemical composition of the sample

were investigated-and it
was-established that these factors do

not cause an appreciable
displacement-,of the calibration-dia--
C ard 1 /2

1pplic6tion of the Photo-oleotric Stylometer-FES-~l
SOV/32-.;25-8-26/44
for the Analysis of Nonconduotive Powders
grams (Figure). There are 1 figure and 1 table.
ASSOCIATION: Gosudarstvennyy institut tsvetnykh metallov (State
Institute
of Non-ferrous Metals)
Card 2/2

BRITSKE, M... -,
Turbulent flames as the source of light for the analysis
of solutions
by flame photometry. Zav.1ab. 30 no..12*.U65-1469 164.
(MIRA 18-.1)
Evaluation of the sensitivity and reproductbility of flame
photometric
analysis. lbid.s3-454--1458
1. Gosudarstvannyy nauchno-issledrvatellskiy irstitut
tsvetaykh metallor,

BRITSKIYI.
Radioconmunication for oax-couplere and yardmasters.
Artom., telem.
isvias' 2 no,*6:39 Je '540, (Km lU6).
1. Stare~iy,eleitromskhmulk Zimiuskoy distantaii
signalizateii i
avyazi Vootochno-Sibirmkoydorogi,'
.(Railroads-39lootrouic equipwnt)
(Railroads-Making up trains)
4

tli~KIY, V.S.
Dismountable cement-mold center for making collecting
Stroi. tekb, 1-1 no-11, 1952

IIRITSKITI Y&,V.
I . , ---- --
~tud.r of tyrogliphid mites fouad ijk mills &M
gronaries. Nauk.sap.
L'vIv.a,suk.pryrod.mz. AN MM 303-42 154. WU 8:5)
(Mites)

BRITSKIY, Ya, _Y. (Brytelkyl, U.V.3
Comparativa effectivenace of the action of benzene
hexachloridp
diebloroothane, and the solution of benzene hexachlorlde in
dichloroothano on soil insects. Pratal Inst. agrobiol. AN URSR
5:1?-23 154. (mm 11:7)
(Insecticides)
(Soil disinfection)

SIROTINA, M.I.; BRITSKLY, Ya.V.; CHURT-JAYA, G.S.
Indices for short-Lerip forecasting of the abundance,
vitality
and fecundity of Colorado beetle, Dokl. AN SSSR 156
110. 2-
448-451 IQ 164. (MIRA 17-.7)
.L. Naiiclino-isilatiovi-tt,-Il-kiy Institut
zemicdeltya i zlilvotnuvodstva
1
zapadnykh rayonov IT'KrS,13R. Prtidsr.nvleno
aktidemikom Yt-..N. Pavlovskim.

~f (/
BRITSKTY., YA,V Cwnd Biol Sci -- (diss) IIG=~d entomorf
auna
- e-V4
of the westernlj~= stcppesc~ ~UkSSR.ll Llvo-v, 1959, 15 pp
(Mi.n of Agr UkSSR. Ukrainian Acad of Agr) 150 cop.-Jes
M, 35-593 113)
- 25 -
V

BRITSKIY, Ya.V. (Brytstkyi, IA.V.], kand. biolog.
nauk; FARINA, B.S.
%.......
Efficiency of the combined use of insectJcides,
herbicides and
mineral fertilizers for the control of wireworms in
corn fields.
Khim. prom. (Ukr.) no.3:42-1+3 JI-S t64.
(MIRA 17:12)

KOSTOUSOV, A.I.;.BRITSKO, K,M,m OLODIN, Te.I.; GRECHUKHIN,
A.I.; DEGTYA-
RMO. N.S.; DOBROSKOK, A.N.: MARDANYAN, M.Ye.; HAYDENOV, I.A.;
PROKOPOVICH, A.Ye.; TELYATNIKOV, L.P.; USMSKIY, Ya.K.; ULUOV.
V.N.; PERLISHTE7N, Ya.A., nauchnyy red.; YZVSEVICHZV, Y.I.9
red.;
BUDOVA, L.G., takhn.red.; NADEINSKAYA, A.A., takhn.red.
Nachine-tool manufacture in Japan] lAponskoe stankostroenie.
Pod obshchei red. A.B.Prokopovicha i M.R.Mardaniana. Moskva,
TSentr.
biuro tekhn.informataii, 1959. 461 p. (MIRA 13:9)
1. Moscow (Province) Oblestnoy sovet narodnogo khozvaystva.
(Japan--Machine tool industry)

red.
KALININA, V.F.; RDIAANOVp A.D.; BRITSKO X.M. KUPCHE, P.P.,
tekhn. red.
[Design'of ihe elemefttl for watch me.chanisms and deVices]Kon-
struirovanie i raschev elementov chasovykh mekhanismov i
priborov. Penze, TSentr. bluro tekhn. informatsii sovnarkhoza,
1960. 167 p. (MIRA 16:3)
(Glockmaking and watchmaking)

2 2/5 1
A UITHDRS i Vavilov, V. S. Britsyn, K. I.
T IT LE On the Quantum Yield of the Atonic Photo-Effect in Germiarl
um
(0 kvantovom vykboae vnutrennego fotoeffeKta v germanii)
L,
PERIODICAL: Zhurnall Rksperimetallnoy i 'I'leoreticheskoy Fizihi,
11-15 3
Vol. 34, Nr 2, PI). 521 - 523 (USSR)
ABSTRACT: First the authors sbortly refer to earlier de,-,lin~;
with the same subject. The authors carried out Leisureaents
of the quantum yield of the atomic photo-effect in -crmaniun
of the 11-type within the range of wave len_f-ths of from 1,5
to 0,254 ~L. The quantum yield Q is defined as the ratio (nun-
ber of exceso free carriers / number of Lbsorbed photons).
In the experiments germanium monocrystals with the specific
resistance from 9 10 to 20Q viere used. The ori_ginal
diffusion length vias about 1,5 mm. The plate-shaped crystals
(0,3 - 0,6 mm thick and 1 =2 surface) were irradiated with
monochromatic light from one side. At the opposite side of
Card 1/3 the plates there was an N-P-transition which had been pro-

On the Quantum Yield of the Atomic Photo-Effect in Germanium
56'-2-42/51
duced by the meltin,- of indium. Also the liCht sources used
are given. Within the ultraviolet ran[;e the luminescent com-
pound Lumogen (with a constant yield of luminescence) as 'v;ell
as the photomultiplier q53Y-25 were used as recorders for the
bands 366, 313, 289 and 254 mp. Also the formula for the
calculation of the quantum yield is given. The total reflec-
tion coefficient occurring in this formula was measured by
means of integral photometer sphere. A diagrain shovis the
curve R(h-0 ) as ivell as the values of the quantum yield for
the photo-energies from 0,83 to 4,9 OV computed by means of
the above formula. This curve clearly ahows the important
increase of Q, which, however, does not begin with the double
minimum work function of the electron (,vl,4 eV), but at hi,-h-
er energies. The increase of the quantum yield becomes slow-
er with great hi ; i.e. the mean energy F_ , which must be
expended for the production for an electron-hole pair, in-
creases. A certain increase of E was also observed in the
investigation of the propagation of fast electrons in Jor-
manium with increasing energy of the electrons. There are
Card 2/3 1 figure, and 8 references, 7 of which are Slavic.

. . On the Quantum Yield of, the Atomic Photo-Effect in
Germanium
ASSOCIATIONt Mbecow State Umiye~rsity .
(1-loskovskiy gosudarstvennyy universitet)
SUBMITTED: November 21, 1957
AVAILIBLEs Library of Congress
56-2-42/51
1. Germanium-Atomic photo effect 2. Quantum yield-Measurement
Card 3/3

AUTHORS: Vavilov, V. S., Britsyn, K. I. SOV/56-34-5-6o/61
TITLE: On the Quantum Yield of the Photo-Ionisation in Silicon
(0 1wantovom vykhodo fotoioni?atsii v kremnii)
PERIODICAL: Zhurnal eksperimentallnoy i teoreticheskoy fiziki,
1958,
Vol. 34, Nr 5, pp. 1354 - 1355 (USSR)
ABSTRACT: It was shown in two previous works (Refs 1,2) that the
quantum
yield of the internal photo effect in germanium crystals in the
case of sufficiently high photon energies can reach considerably
higher values than unity. This increase of the quantum yield
can be explained by collision ionisation by primary electrons or
holes (which on occasion of the absorption of the photon have
become free and have the necessary excess momentum). A similar
phenomenon could also be expected in silicon. For the invest.4gebm
of the photo effect in silicon the author used crystals with
P-N.-transitions which could be expected to occur by thermo-
diffusion of phosphorus in silicon of -the P-type. To obtain a
sufficient sensitivity in the short-wave rangre crystals were
Card 1/3 produced in which the depth of the P-11-traiisition under
the

O~ the Quantum Yield of the Photo.-Ionisation in
SOV/56-34-5-6o/61
Silicon
illuminated surface did not exceed over 2p., The same experimen-
tal arranoement served in these measurements and in those
with germanium. Reference is made concerning a complication,
which occurs as compared to germanium. In the range of the
photon
energies of EaNX. L,
AUTHORS: Kostenko, M.P., Alekseyev, A. Ye,i SOT 1 05-5d-7-30/52
Lyuter, R.A., Zavalishin, D. A.
Gnedin, L. P., Britain, M, L~
TITLE: Leonid Nikolayevich Gruzov (Deceaaed)
PERIODICALt Elektrichestvo, 1958, Nr 7, PP- 93-93 (USSR)
ABSTRACT: Professor Leonid Nikolayevich Gruzov, Doctor of Technical
Sciences..Engineer'-Colonel;Head of the Kafedra elektropitaniya
ustanovok s%,yazi Voyennoy krashoznamennoy akademii svyazi
(Department of Electric Supply of Telecommunication
Equipment at the Krasnoznamennaya Militury Academy of
Telecommunication) a prominent expert in the field of
electric machines, died on October 17 th, 1957, at the age
of 51. He graduated with distinction from the Donskoy
politekhnicheskiy institut (Don Polytechnical Institute)
in 1927, was then aspirant at theleningradsky politek,~;nicheskiy
institut (Leningrad Polytechnical Institute), assistant,
and finally docent at the same institute. He combined his
scientific and pedagogical activity with that of an engineer.
He published a series of papers on the transient modes of
Card 1/2 operations of electric machines and of power supply
systems.
I V

Leonid Nikolayevich Gruzov soy/105-50-7-30/32
He worked as engineer in the "Elektrosila" works as well.
He took part in World War II. In 1947 he took his degree
as Doctor of Technical Sciences. He developed a method for
the investigation of electric machines. He was first head
of the Department of Theoretical Electrical Engineering, then
of the Department of Electric Supply Plants at the Militar:(
Academy of Telecommunication. He published more than 30
scientific papers, textbooks and manuals. There is 1
phortograph.
1. Scientific personnel--USSR
Card 2/2

BRIUYN, N.L.
Heating process in an electric high-frequency
field. [Izdaniia]
LONITOKASH no.30,.423-440 '52. (KLRA 8:1)
(Induction heating) (Dielectric heating)

BRITSYN, N.L.
Nagriv v elektricheskom pole vysokoi chastoty (Heating in
high-frequency electric fields).
Pod red. A.A. Fogelia. Moskva, Yashgiz, 1954- 52 p. (Bibliotechka
vysokochastotnika-
termieta, no. 15)
SO: Monthly List of Russian Accessions, Vol 7, No 9, Dee 1954

MITSYN N.L.g FEDOROVA, I.G.
Welding plastic material smeltable under heat.
[Izd.] LONITOMASH
no*33:217-241 154, (MLU 8:2)
(Plastics--Welding)

89344
S/191/61/000/001/009/015
B101/B205
AUTHORS: Fedorova, I. G., Shelina, T. A.
TITLE: Application of high-frequency heating in manufacturing
tubes
from glass-reinforced plastics
PERIODICAL: Plastioheskiye massy, no. 1, 1961, 35-37
TEXT: This is a report on attempts of accelerating the
hardening of tubes
made of glass-reinforoed plastics (GRP), which are used as
props. The work
has been carried out by,Nauchno-isaledovatellskiy institut
tokov vysokoy
chastoty im.prof. V. P. Vologdina (Scientific Research
Institute of High-
frequency Currents imeni Professor V. P. Vologdin) in
cooperation with
Laboratoriya anizotropnykh struktur IKhF AN SSSR (1aboratory
of Anisotropic
Structures, Institute of Chemical Physics AS USSR) and
Leningradskiy zavod
Bl018tykh plastikov (Leningrad Plant for Laminated Plastics).
The tubes
are manufactured by winding GRP sheets round metal rods which
are then
heated by electric coils. Hardening is continued in chamber
kilns at
120-18000. On account of the low thermal diffusivity of the
material,
heating and hardening take 6-20 hr, depending on the wall
thickness of the
Card 1/3

89344
S/19 61/000/001/009/015
Application of high-frequenoy... BlOlYB205
tubes and the types of resin. Therefore, the Possibility of
high-frequency
heating has been examined. Tests were made with GRP on the
basis of
different resinst a) 70% epoxy and 30% phenol resin; b)'P-2
(R-2), an
aniline-formaldehyde resin with zinc 8tearate. In order to
prevent the
resin from flowing off, the tubes were rotated with 2-5 rpm.
Heating was
done in a condenser field, with the metal rod serving as
grounded
electrode. The optimum strength for epoxy-phenol resin was
reached after
heating for 2 hr (instead of 20 hr) and for R-2 after 30 min
(instead of
6 hr). The heating time could thus be reduced to one-tenth.
The limit 2
compressive strength of epoxy-phenol and R-2 resin was 4500
and 3500 kg/cM'
respectively. Heating with 20-25 Mc/sec proved to be most
favorable. The
second electrode of the condenser has been designed in the
form of a semi-
cylinder M, a cylinder (II), and plane-parallel plates (III)
(see Fig.8).
The following capacities were calculated per om of tube length&
35011?f M; 700 f (II); and 150~~f (III). Alternative III was
chosen
sinob it facilitmEs the automation of the process. An
apparatus designed
by the Scientific Research Institute of High-frequency
Currents has an
insulated chamber containing h-f plates, a feeding mechanism
for tubes,
and a drive for rotating rods. A h-f current is generated by
anAPA-32
Card 2/3

89344
S/191/61/000/001/009/015
Application of high-frequency ... B100205
(LGD-32) tube generator and.fed to the condenser by a coaxial feeder.
The
following technical data are presented: rated power of tube generator:
55 kva; mains voltage: 380-220 v; consumption of*cooling water: 2.5
m3/hr;
dimensions of elgotrodess 1100-1600 mm; electrode potentialt 6-10 kv;
frequency: 20-10 cps; motor power: 5 kwl'cost of treatment per kg of
tube: 25-35 kopecks. Performance of the plant:
External tube wall thickness lengthi output. number of tubes in
60 5- 7
80 5-10
110 7-12
140 7-15 1
There are 8 figures, 1 table, and
Legend to Fig-.8. I: semicylinder;
JI: cylinder; IIIs plane-parallel
plates; 1: electrode; 2: air gap;
5: tube; 4: rod.
bard 3/3
~00 1 10 10
j00 10 10
500 5 5
500 5 9;
Soviet-bloc reference.
M,
0
0 1203 4
Fig.8

BRITSIN, N.L.; I~PWVA-y T.P.; _SRFT.TNA,. T.A.
Accelerated preheating, af -tabletted_ mnitij" porwder,3.
plast.,way
no.5:?9-30 161. 1 (MMA 14:4)
(Phenol condensation products)

38851-66 W(J)/DjT(m) IJP(c) RM
ACC NR% a6m878 SOURCE CODEs Woom/65/000/016/S061/3061
AUTHORt -Britsyn, N..L.t Shelina T. A.; Knyazhakaya, G. S. 3-2-
*A _B
TITLEs Weldingl"O'f polyamide~by heating in a high-frequency
electric field
SOURCE: Ref. zh. Xhimiyal Abs. %S427
REF SOURCES Tr._Vses._A.-i. in-ta tokov vysokoy chast otyp 5,
1964,, 131-138
TOPIC TAGS: welding,. polyamide
ABSTRACT: In the HF welding of polyamides of Soviet brands F-68,
P-6, P-89 P-iO, and
also Rilsan, trioresol was introduced into the weld zone in order
to increase the
range of the visco-fluid state, 7he welding was carried out at a
frequency of 27 Yz
by limiting the final gap, equal to the single thickness of the
material. This type
of welding does not decrease the mechanical strength of the
polyamides because of the
short duration of the heating. A change in the mechanical strength
of the polyam-lde
weld Joint w-Ith time (6 months in closed storage and under
atmospheric conditions)
was demonstrated. The data of experimental investigations were
utilized in the de-
velopment of a technological process for sealing storage battery
tanks. V. Praslin.
(Translation of abstract]
SUB CODE113,11

s
=-M- .i13RIT YN, S. I.. KKUrak)
.1, 'Frnctionating column. MAm. v shkole. no.2:51-52 Mr-Ap 158.
tDistillntion apparntus) (MIRA 11--3)

VOYTKUN.S,KIY, Yaroslav losifovich; 50LOVIYEW,
V.I.., kand. tekhn.
naiik, retsenzant; GIRS, I.V.) kand. tekhn. nauk,
nnuchn.
red.;BRITSYNA, I.M., red.
[Resistance of water to the movement of ships]
Soprotivle-
nie vody dvizheniiu sudov. Leningrad,
S-adostroenie, 1964.
411 p. (MIRA 17:0')

MUTSY1U. H. P.
le .11 )mvlmzA, 191-P t".) -,roblemv
26229 Konferentsiya po ~ omorfolop
fiz. geofgraii, Xr.1, lQ49, s. 151-52
SO: IF.TOPIS I M. 35, 1q49

MITSYNA-, M.P.
m- - N
Occurence of lhvalynian chocolate 01878 and some
questions on the pa-
leograpby of the Caspian Depression. Trudy Inst.geog.
no,62:5-27 154,
(Caspian Delves sion-Clay)- NUA 8:5)
(Caspian Depression-PaleogrkDby)

MASHBITS, Ya,Gb , BRITSM., M,P.
Yoreign geographere viBit the U.S.S.R. 1x7. AN SSM4
Ser.geog,
no.ltl54-156 Ja-r 163. (MIRA 16t2)
(Illoitors, Foreign) (Geograpby)

S/078/62/007/004,/011/016
Bi o6/Bi o1
AUTHORS; Deychman, E. X., Rodicheva, 0. V.,
TITLE; Study of indium sulfates. The system in 2(S04)3 - H2SO, 4
-H20
PERIODICAL: Zhurnal neorganicheskoy khimii, V. 7, no- 4, 1962,
877-864
TEXT: The compounds forming in the system in 2(304)3 - H2 so 4
-H2 0 -were
studied by measuring the specific electrical conductivity, pH
value, and
solubility. The measurement of electrical conductivity was made
in solu-
tions with constant concentration of In 2(S04)3 and varying
quantities of
sulfuric acid, as well as in an isomolar series. The following
resnlts
were obtained: The acid salt In 2(SO4)3.H2-SO4 or InH(SO 4)21
which can also
be considered as complex acid H[In(SO4 )21 , is'formed in
solution and in the
solid phase (in solution, the two forms are in dynamical
equilibrium).
Both forms are little stable, and dissociate in the solution
according to:
H[In(SO [In(S0 )2]-; [In(So ) 2] [InS 04]+ + S02-_
4)2]W--=e + 4 4 4
Card 1

S/078
,/62/007/004/011/016
Study of indium aulf stes. B106/B101
InH(SO CC 3+ + A+ + so 2- respectively. In the presence of sulfate
4)2 In 4
ions, no acidity range was found in which indium occurred as cation
only.
This indicates the formation of anion complexes of indium in
strongly acid
medium as well as at pH,-4. Determinations of solubility (Fig- 5)
showed
that the two hydrates In 2(SO4)3' 1OH 20 and In 2(SO4)3*5H20 were
stable in the
concentration range 1-22% H 2so 4' The acid indium sulfate Hin(SO
4)2'3-5H2o
is formed in the concentration range 22-69% H SO The two little
stable
2 4'
complex acids H 4In2(SO4)5*4H20 and H 3In(SO 4)3 which are formed
besides the
mentioned acid H[In(SO 4)21 were found for the first time in the
concentra-
tion range 72-93% H 2 so 4' The solubility of complex indium acid
is very
low at a sulfuric acid content of 71% (a-10-7% In 2(SO4)3 );
therefore,
practically no indium ions are present in the solution. In this
manner,
indium can 'be separated from some other elements which form
soluble sulfates
in solutions of - 7Wo sulfuric acid. The individual character of all
compounds found in the system In 2