SCIENTIFIC ABSTRACT KOROS, ENDRE - KOROS, ENDRE

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000824820020-5
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 29
• Document Creation Date: November 2, 2016
• Document Release Date: June 14, 2000
• Sequence Number: 20
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

L. of A&AII compounds and gdLAChU
t
P V%nivn, a
31 F
Eowplete conversion -to borate was obtained on 10-min
Ignition of a inixt. contg. 8 parts M130x to I part salt
go 'Cl 9
feHows: KNO, WD*, LICI 3 r RbCJ 400* NaCl
or. KCI 600-MV, KiS04" 10~~ The, temps. required
parallel (he In.ps. for the halides. Investigation of thi:r'
KCI-U;BO3 reaction by chem. ahalysis, x-ruy atialysis, iind
microscopic itinlysis confinned t1tat thQ tr-wIsforvu,66%N
starts at 450* and is complete -it 000'. At lollcr twips.:
the product cousisis of he\agonal crystals; a glaN5 is forined.
13. 11, Blmk
at the higher tenipq..
. . . . . . . . . . . . . . . . . .

OS'MIM
f the formation of chelate, complexes In
istry. 1. 9nmnl-wiptrii titi,tinnit
re ()r 131IRRIMSE). .414gyar
a 9 )~A review with 245)rcterencLs In which
imd~yV61 rMAXwIth c6niplexon 1, 11, and III are de-
scribed. lstvkn Finhlv

_0 'a 'and, thetr
tg

t

jffRr47'v'4yjiF49 VOL .59.1 195), Nt 1. 4- PP- 107-lill"
6
R vilerhmats wem carlim aut to rohae tile alkalisle
7 6 3t% ~Uqoccmti ~4146m% atul fit ;1 "'1161 Aale.
Tha (ciluctl4sir, I tile .01411m.- perchWulic" in all aqatimla

lvk~!'.Ascorbic RON. 4-.1mmlitnted Isyd.01;C11 cllhthlo.
go ac It)AI'."jmt i'Alidc aq vtAtwitil, agvmii %k'o
lit ffw ;6441 Ntatc, l1w vollivilitivil Ili ltw
jVt.
l(Ith (Iii'Alic-m 41'.,vulitall carliallate. aluill.l.
Ilium 0 HiMe- C1 C. WI!l itir."1111110 tit .~ li'll gl"w hv"~ I or, Ilvire't.
Allia tilt _v joidilarilitc-i luralvAl withs,10441 Ijoih: iteid Ill all -j
A to to lit itutilt'i IVITe tr.u1';Al[Iw4I
1uto like. clificipil!A411,
lative 44 IN, lool'q fllti~ obtamcd tim 1w
wills".1-41 lit, himit"I wribl'.1

MW

-KOROS, E.
Determination of calcium and magnesium in the presence of each other with the aid
If disodium-dihydrogen-ethylenediamine-tetraacetate (idth complexon III). p. 137.
?
Magyar Kemiai F01yoirat, Budapest, Vol. 59, no- 5, May 1953)
SO: Monthly list of East European Accessions (SEAL), IL Vol 4, No. 6, June 1955, Uncl

41
Reattion OLAUUML-swith Wmer tkild forlilation of
/
Oggs. Elgin& &-Imlek. Eittire K-roi,,1114
J w1jindryiis Kal. Osvdlydnak KWe-
mhYri 7, iv;tots with U)iling 11;0
ficcordill.- to 23 + 211,0 - Uls + HISOl. dvcolnp.
illstallt3flevusly in add S4,111. to SO; and S, ;Illd Ill alk. 1.411,
waming accordiog to 12S + 0 Of I + '%0j
+ Milo. The rAdpulrldt hydrdpri Awrily 1vtwu b6led
forming S.0j and 112S. Ill the reaction t~txvcen S and
Oil-, tilt PrIlyllifidu is only all i1a':_rlllcwI4%tc product.
Ss-- is the Largest stabit: jwlysulfide ill u(j.
FM

East Germa ny/Inor,3anic, Chemistrv. Complux Compounds.
Abs Jour : Referat. Zhurnal Xhimiya, lio 6, 195'(, 1e826
Author : E.Sebulek o L. Waros.
Inst : Academy of Sciences of Hungary
Title : Sulphur Hydrolysis and Chemistry of Polysulfides.
Orig Pub Acta, Chim. Acad. Scl.. Hun3-, 1956, 10, So 1 - 3
Abstract When fine sulphur powder Is Uoiled in water, hydro-
lysis is.taking place in.accordance with the reaction
2S + 2H20 = The fox-m'n-^' R2S02 decom-
H2S + H2SO2'
poses immediatel, according to one of the schemes:
:~ S02 + 6 4- 2H20 (L~t PH < 7) , or 2H2SO2 z
2HO02
2
= S20 + H20 -t- 2H*(a-t PH > 7).. The attempts to
isolaL H2302 or its salts proved to be unsuccessful.
The correctness of -the above equations was confirmed
only by the ratio of the hydrolysis prodlicts. In
tho discussed solution of AgC104, t;he hydrolysis by
sulphur proceeds according to the equation 4S -,V-
4HpO 4- 6Ag + Y.; "12S +602-+611~, If sulphur is
Card 1/2 -'-'12 -

o ex Clive
(Is -) -C ilt r
'I r, and Elp-nift-5diulck- A!P At gaFto2biral i
,,,Ra,r
nve t~
'613. ~213%6 1056)-Various authors , - tile
exchange reaction with polysulfide (1) coutg. S4 In hot
soln,dtiringdecoinpn.,ivithacitt. Since in this case Salso is
pptd., the authors attempted tile production of I in an 0%-
free atm. without prolonged boiling, transforming the poly-
suffidic S into thlocyanate by means of KCN, or liberating
112S by boiling with H&BOs. and prepd. BaSO4 from this,
after which the activity of the latter was measured. Sm
was produced from methionine by way of BaSO4. In the
microapp. described I was fortned within a few min. from.
Na:S and S" at low heat, and this was decompd. with KCN
and H%BO&. The His was boiled out, tvansformed into
BaSO, by INH4011 and HsO:i, the thiocyanate was oxidized i
in the remaining soln. with Br2, and BaSO4 was formed.
The activity was measured with consideration of the auto.
absorption of BaSO4. The S of I was completely ex-
changed. In addni. expts. S was dissolved In abs. toluciie
and put into the test tube together *with Na2S. Tile Nass
and the I formed are insol. in toluene; ifie decompn. showed
that the exchange took place also in the solid phase. In the
sulfide and thiocyanate were in the soln. slinultanc-
and all InveAtlKatfoii was Merefore inade to discover
whether& Sexchange took place between them. Thiswas-
riot the case. Since in the presence of 0, the sulfide forms
thiosulfate easily, an investigation was made also to discover
whether an exchange took plact between the tMocyanate
and the thiasulfate. These expts. also remain
From C.Z. 195S. 7057-8. F.
2-
ONGARY/AmlytiCal Chemistry Analysis of Inorganic Substmices E-2
Aba Jour : Ref Zhur - Khiriiya, No 3, 1958, No 7628
Author
Inst Not Given
Title it New Method for the Titrimetric Determination of Fluorides.
Orig Pub : Acta. pharme. hung., 1957, 27s No 1-2, 10-11
Abstract : A nethod is described which is based on the titra~lion of F-
with a solution of Th(NO 3)4 using pyrocatechol violet as the
indicator. The solution to be analyzed, containing 0-05-2 mg.
-equiv. of P- is diluted to 2-6D ul. and the pH is adjusted
to 5-6.5. From 1-3 drops of a 0.1% indicator solution is
added and the sanple titrated With 0 01N Th(NO )4 solution un-
til the color changes fron yellow to blue. '2e halides and
nitratoo of the alkali mtals and almnonia as well as CH COONH4
and H 3BO do not interfere with the determination. Me 3 ac-
curacy ol the determination is:tO-5%-
Card 1/1
ftwlk~_ A

Av,

a

of t:'
a.D T
bia-st; axad bmaze, rud ciowthe pre.

Z. Rmq-~Jft- zor-.a*'- 11.~ v65 Univ.,
UrR
41
-I i
the RDTA t~~fiop of Z
Soln
C
Zt
d C
i
b
.
n
u
t)
l 4n
u
'.
m5~'
ZQ In tirdrue, aud caun~l Cu lit a r-m-Ple. witli X~kciwj
Omrf,-pt (1) 4is indic,-tor,it t4i 4,5 to d 0 arc J't-acih,-d. U,-c
cto:'-.fi t(tc wiual cy-~Itidv lu.'"Uag 'u"d dnna~klwg of the
licavy ineah. Cu inwfewce h c-L-viair-d by reductijin
wl
'n.
U~;~orbic Z641 ,lid PP, A Cut, i'le or thimyat-tc'
wh*'Ch rwtt-tmct~:~C-filwivd' ciff; - riath C- atiA ~rt
can be
t
Aut~u
d 'vdyby aild". of LXH'de anti' titrition C4 the
frt-- I ~with thimulfate. folk-wed by EDTA titrzatior. of Z1.
Foe brass, prior so!a. in HTT03 Is followed-by EDTAL titra-
i
-tion, For bronze, Sh ezd Eb are sepd. as m
chstannit: acid
and PbSO4,- 1--sp., pricr to titrittion. Ca and Cu in a single

""a or
ht'Cxz and FDT~'t
thratic.-I of-ca or a 2nd uliqtm 6f O"e, 861'a,

..........

HUNGARY / Physical Chemistry. Kinetics. CoLabustion. B
Explosions. Topochemistry. Catalysis.
Abs Jour: Ref Zhur-Khimiya, No 24, 80725.
Author :_42E2LE._,_,Maros L., Feher I., Schulek E.
Inst : Not-g-iVe-n.
Title : Investigation of the-Exchange Reactions Involv-
ing Radioactive Sulfur. I. Information Per-
tainihg to Exchange of Sulfur Atoms in Poly-
sulfides.
Orig Pub: Magyar kem. folyoirat, 1957, 63, No 8, 213-216.
Abstract: Previously published works on the atom exchange
in polysulfides were thoroughly reviewed. A
method of separation of sulfides from polysul-
fide ions is proposed. The components involved
were converted into BaS04. Activities were de-
termined with the use of G.-M. counters. An
Card 1/2 21
u,

NSKJ
im
-~VD--tm
on
Lqk -me' tiLs
~ff
brme=s qf M-X,*.q Elcrist &-h
is, mad 51
ye, 'ai -0,
cyama co-jj,lclc* of Cd Z41. N11. jud Cu C-ul bt C-~-alpitte!Y
v
dm)mjxl- ty b3iling voith burm a~Cj". C
can br only paitially dmm-od. kml th-a
is depemdew on the vcpti. auiditiorus, Cd aA,d Za com-
PICIC.1 -axl be complittely dvwm--pd b-,, HCTJI~~
Under suitsWe condidimm, by me-aswing the ~.m of C N -
boud to the metal, Cu mul IA cctLM b,

, f~ , - - -
4~I-