SCIENTIFIC ABSTRACT CUTA, FRANTISEK - CUVALOVA, N.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000509420019-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: January 3, 2017
• Document Release Date: July 28, 2000
• Sequence Number: 19
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

KUMIS Mop inz*$, CoSce; _CUTA.-Erantiag" prof.,, J=.o dr.; JELIMK,,
Jaroslav, iiin.
rr I dr.
Report.oix the transactions of the Central Co=ittee of the
Czechos4wak Chemical Society at its meeting of July 2,, 19Q*
Chem lioty 57 no.1:104,-106 Ja 163.

nt

vOo=etric method lor the dew. of idtainii A h based ons,
Color irwWon develME4 by tbe addn, of 50.1% RCIO* to i
.CHCJ,soln.vfvjtan"A. nt measummcnts Aft prmtded
by entrifus i'lan of a turbhMty formtd afttr the addn. of
HCIO,. Ab~~mtlm max. of the colmatlon is 5430 A. For
the tolonnetzic method, a standard preod. ofpbwol red at
PH 6.4 (Trax. -nbsnption at 57BO A7) wa~ used. The
Presence *1 vitarnIn D dow not Inteden "ith the deta. of
viltamin A. M.

"'! " E-

CUTA, F.; STRAFFIDA. F-
Electric resistance, salt error, asymmetric potential, hydrogen function, and
cbemical resistance of Sokolov-Pasynakil glass electrodes* In Russian. p. 67
Vol. 20, no.1, Feb. 1953
SBORIM CYUIHO=VATSKIKH KHI141CHEMIKH RABOT
Praha, Czeeboalovakia
So: Eastern European Accession Vol* 5, No. 4, 1956

ZE C H
1, ILUauc cr.
'in nickel sidtfi. Fraritk.!r ~bips arid ]z r h
'Gd.
4
9, 44,.

~t7~-IS~~-,I--6--O.!:i~.2r.-~.~~,~-,S~~,,~ 7 C.
and j)Qhmm)B ialti.
(Vy-s&kl Vkob cu'M' LiVy 49,
41 ----1 ~ i95a)17 271- ~MUle P~ MMM-MMMU hy zue.;L~ ol a
Itil,! clt-ctrode tht '-trd thumodyuwnlc mnst, of at
0. W was drtd.! 6.1 X 10-3, 5-&~ X 10-1 ,
75
MEMO
--,pga- - j
gg g
OM

lvi I

Czechoslovakia/Analytical Chemistry Analysis of Inorganic Substances., G-2
Abet Journal: Referat Zhur - Xhimiya, No 19, 1956) 61879
Author: Cuta, Frantisekj Ksandr., Zbynek; Hejtmanek, Milos
Institution: None
Title: Potentiometric and Conauctimetric Titration of Free Acid and Acid
Liberated from Nickel Salt on Hydrolysis at High Temperature
Original
Periodical: Potenciometricka a konduktometricka titrace kyselin voinych a hydrol-
ysou odstepenych z nikelnatych soli za vyssich teplot, Chem. listy,
1954.* 48, No 9, 1341-1345; Czech; Sb. Lhekhosl. khim. rabot, 1955,
20, No 2, 381-386; RuBsian; German reBumg
Abstract: A low temperature free acid is titrated in presence of Ni salt by
potentiometric or conductimetric method. On titration of Ni(ClO4)2
and Ni(NO3)2 With NaOH solution the entire acid liberated by hydrol-
ysis can be determined at 900. With NiC12 and NiSQ~ by NaOH titra-
tion it is nossible to determine,. respectively, 99% and 97$ of the
substance at temperatures 4500. Hydrolysis takes place incompletely.
Card 1/2

.1 Czechoslovakia/Analytical Chemistry - Analysis of Inorganic Substances,, G-2
Abst Journal: Referat Zhur - Xhimiya, No 19, 1956, 61879
Abstract: Results that are too low are caused by fomation of slightly soluble
basic salts.
Chem. Abstro., 1955, 49', No 2, 780-
Card 2/2

CUTAP
CUTA., F. Continuous potentiometric determination of traces of hydrogen sulfide
in hydrogen by absorption in an iodine solution. In German* P9 410
Vol. 21, no. 1, Feb. 1956* SBORNIK CHEKHOSLOVATSKIKH KHIMICHESKIKH
RABOT. COLLECTION OF CZECHOSLOVAK CHMICAL COINUITICATIONS.
Prahap Czechoslovakia.
SOURCE: East European Accessions List (EEAL) Vol. 6, No. 4--April 1957

M, 4 MAN
RN

- -1 - - I ~ -, -, 1 ~ ', - ,
, I I -
- - , - : , : ~ ~ , :-.i.-
.~ -1 . - , - - . - -- 3.

r
CFWHDSLOVAKrA/Physical Chem.Lstry Molecule, Chemical Boal. B-4
Abs Vour: Referat. Zhurnal Fhimiya., No 2., 19A 3522.
Author : Firantisek Cut&, Jan Pisecky.
Inst : ...............
Title : Spectro-Photometric Study of Symmetrical Trinitrobenzene
with Sodium Hydroxide.
Orig Pub: Chem. listY, 1957, 51., No 3, 433-439-
Abstract: An addition of OR- takes place in aqueous Alkali" solutions of
By=-trinitrobeniene (I) with 'the formation of an dixy-anion of
polyquinone- my be ze~mt_7 (sic.) structure,
the seniquinone f
which is revealed by the shift of the extinction maxinum of
non-dissociated I from 330'to 445 or 485 m,~%. The mtio of
heights of both the last =xima and the isobestic trisobathyc"
may be meant_7 (sic.) point at 262 m/,ilead to the conclusion that
in very much dilute NOR (II) solutioas, one equivalent of rl is
added, that an equilibrium of the anion with Wo equivalents
Card 1/2 -3-1-
CZECHOSLOVAKIA/Phpical Chemistry - Molecule, Chemical Bond* BA
Abs Your: Referat. Zhurnal Hhi-iya, No 2, 1958, 3522
takes a 0-15 n., and
place in II soluticas of concentrations abov.
that, if the concentration was above 0-5 n-~, an equilibrium with
tln--.e equivalents takes place. Satux-ation takes place at the con-
-entration, of II = 9 n. A maximmm at 225 m&4~, so far not described,
vas revealed on tbe extintrIsicc. clm.*ve of acid aqueous solutions of
I. The isobestic (sict) point at 262 m was used for the camputa-
tion of the first constant of I dissociation, X - 1.2 + 0.2 - 10-14.
A neutral chlorid,!~ discolors I completely even Im dilute II solu-
tions.
Card 2/2 _12-

CZECHOSLOVAKIA Physical Chemistry~ Molecule. Chem- B
ical Bond.
Abe Tour: Ref Zhur-Khimiya, No 21, 1956, 69760.
Author : Cuta, Frantisek, Eduard.
Inst :*t-i-iven.
Title :The Spectral Photmetry of Trinitrobenzene Com-
pounds With Sulfiteej Sulfides and Cyanides.
Orig Pub: Chem. listy, 1957, 51, No 9, 1669 - 1676.
Abstract: The properties and structure of red colored
adducts of a symmetrical trinitrobenzene (1)
with,sulfites (II), sulfides (III) and oyan-
ides (IV) have been studied spectrophotomet-
rically. The above mentioned compounds are
similar to the adducts of I with hydroxides
but are formed mostly at a lower pH. By a
method of continuous variations the molar
Card 1/5
CZECHOSLOVAKIA / Physical Chemistry. Molecule Chem- B
ical Bond.
Abs Jour: Ref Zhur-Khimiya, No 21, 1958, 69780.
Abstract: ratio of both components (in compounds of I
with II) was established at pH_,9 to be 1:1.
This compound is formed in an alkaline medium
above 'pH 7 and possesses absorption maxima at
462 and 470 m A. Its absorption curve at
-.462 mAversus sog-ooncentration does not obey
the Beer Lambert Law completely. At higher con-
centrations of SOJ- the red colored solution be-
comes colorless. The coloration fades in light
as a result of photochemical decomposition of
that compound. The reaction between I and III
proceeds similarly as with JI; however, the
coloration is stable only for a few seconds af-
ter which time the solution acquires a perzaan-
ant Yellow coloration due to the presence of
Card 2/5 2

CZECHOSLOVAKIA Physical Chemistry. Molecule. Chem- B
ical Bond.
Abs Jour: Ref Zhur.-Khimiya, No 21, 1958, 69780.
Abstract: ning euvette at pH 9 has a weakly defined max-
imum at 440 m/(. The formation of colored com-
pounds of I with II-MV might be explained by an
addition of SO�; S11m, and CN-to a molecule of I.
The corresponding colored anions are formed
only in the pH range in which the anions of II-
IV are able to exist. When these anions are
present in excess and their maximum quantity
becomes attached, the mesomerism of the adduct
disappears and the solution becomes colorless.
The decomposition constant for the adduct of
I with II was calculated from the concentra-
tion of colored anion graH 3(NO2)3. S047
Card 4/5 3
CZECHOSLOVAKIA Physical-Chez-1-stry. Molecule. Chem- B
ical Bond.
Abs Jour: Ref Zhur-Ehimiyai No 21, 1958, 69780.
Abstract: which, in its turn was determined spectrophoto-
metrically at pH 8 with constant concegtration
of I and various concentrations Of so- The
latter were calculated from the seconR d*isso-
oiation constant of H SO After extrapola-
tion of II to 'Abno cofice&atioLi its magnitude
was found to be (1.8 0.1)-10-0.
Card 5/5

-COUNTRY
CATEGORY
AB-3. JOUR. A-71(him., i~,o. 23 1959, A*.,o. 82188
AUTHOR
T I T L E
ORIG. PUB.
A B:13, T R A C Tand the riawL'auin of absorption of I are civ
cont'd I U, er_
440, 350;,C.'!-, 1-1, 400, 300:
S1 7-10, 461, 220; so 6 0
3
Vio dissociation oon3tant
k' _,T. 0 1') -10--
at ")-ii 8 for the reaction (X-SO~)
wa S Calculated. The censitIvirly of Vi-,--, c -
4-on of I ""th S03- 2
I- . at pi[ 9 cor,:~titu-uen 1:
1~00, 000. -Lrae di:~.qociation Gonstant of 111
(1.2�0.2).10-14, was' dotermined. The absorz)-
tion spectra of i with Mae above -nentioned
anions are giver..-- S. Ioffe
CARD: 2/2
CZECHOSLOVAKIA/Optics - Optical ~%thods of Analysis K-8
Abs Jour : Ref Zhur - Fizika) No 2., 1959, No 4556
Author : Cuta F., Pisecky J.
Inst
Title : Spectrophotometric Investigation of the Reaction symm-
trinitrobenzol with Sodium Oxide.
Orig Pub : Collect. czechosl. chem. comun., 1958, 23, No 4, 628-635
Abstract No abstract
Card 1/1
126

CZE110SLOVAKIA / Analytical Chemistry. Analysis of Organic E
Substances.
Abe Jour liar Zhui, - Xhimiya, Xo 10, 1959, No- 34650
3 ml of 1 N solution per halide ion). The solution was
diluted with water to 25 ml. CT was then conducted by
usual means at a current of O.P - 10 ma. The appearance
of halogen excess was registered by an amperemoter, by
means of a pair of Pt electrodes with the impressed voltage
of 350 rav. The halide ion concentration in the solution
should be >~ 0.01 N. The titration of phenol (1), 0-
cresol (II), n-cresol(III), hydroquinone (IV), pyrocatechol
(V), and resorcinol (VI) was studied. CT with chlorine
Sivas satisfactory results only for IV in 0.12 N B01 medium
(oxidation to n-quinone; consumption of 2 chlorine atoms).
With other phonols, chlorino gives either non-reproducible
or excessive results. CT with iodine is possible only for
IV (PH 7 - 8; consumption of 2 iodine atoms, oxidation to
quinone) and VI (pH 11 12; consumption of 6 iodine atom ,
Card 2/3
CZB-,HOSLOVAK1A / Analytical ChorAstry. Analysis of Organic
Substances.
Abs Jour Rof Zhur - Khimiya, No 10, 1959, No- 3465o
triiodorosorcinol formation). Iodine does not react with
1, 11 and III. CT with bromino is most universal and
yields good results undor the following conditions: I -
pH < 1, consmiption - 2 Br atom (at Ph -'~! 2.5, the ratio is
non-stoichiomotric due to the formation of mono-, di- and
tri-:bromo-derivativos); II - pH