SCIENTIFIC ABSTRACT TUTUNDZHICH, P.S. - TUUL, M.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001757620012-0
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: April 3, 2001
• Sequence Number: 12
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

YUGOSI;AVIA/Physical Chemistry. Thermodynamics, Thermochem- B-8
01 istry, Equilibria, Physical-Chemical Analysis, Phase
Transitions.
Abs Jours. Ref Zhur-Khimiya, No 5, 1957, 14715
Abstract: H2S04 - ethyl ester in consequence of a lesser acidity
of H3PO4-
Card 3/3

H
1) - I j, 3-
YUGOSLAVIA/ Physical Chemistry Thermodynamics. Thermochemistry. Equilibrium. B-8
Physicochemical analysis. Phase transitions
Abs Jour : Referat Zhur - Khimiyay No 4, 1957, U193
Author : Pants, S., Tutundz-hic-h Liler Militsa, Kosanovich.
: Viscas -:1- fc8olnductivityo Refraction Ind
Title ity,. ~!ec r ex and Density of Binary
Liquid Systems of Sulfuric and Phosphoric Acid with Esters and with Lactones
Orig Pub : Viskozitet, elektrich provodnivost, indeks prell-nn i gustina binarhykh
sistema sumporne i fosforne kiseline sa estrimi i laktonimi. Glasnik Khem.
drushtva, 1955, 20, No 8, 481-495 (Serbian; English summary)
Abstract : Investigated were viscosity, e;Lectric conductivity, refraction index and den-
sity of the system H2SO4 (I) and th I acetate (11), ethyl benzoate (M),
coumarin (IV), as veil as of H3PO4 (V and II, at 24 and 4oP. On the basis
of viscosity maxim, volume cofitractions and positive deviations of refrac-
tive index from additive values, the conclusion is reached concerning the
presence in these mixtures of molecular equilibrium compounds of 1:1 type.
Electric conductivity of systems including I has highest values with - 90
mole% I (electric conductIvity values are corrected for change in viscosity
Y~ , by multiplying by \~ 2). All properties of liquid phases indicate that
Card 1/2

YUGOSUVIA/ Physical Chemistry - Thermodynamics. Thermochemistry. Equilibrium. B-8
Physicachemical analysis. Phase transitions
Abs Jour ; Referat Zhur - Kh1miya, No 4, 1957, 11193
compounds in systems I-II and I-IV are more stable than in system I- M
Compound in system V-II is less stable than in system I-II due to lower
acidity of V. Comparison with results of previous investigations (R2bKhim,
1955, 9204, 28486, 1956, 465, 50199) of mixtures of acetic and benzoic
acid with I and V shows that esters are weaker bases than the correspon-
ding acids, probably, due to spatial effect of the alcohol residue.
Card 2/2

-71
'71-/ p IYJLI Ll/, //
YUGOSLA.VIA/Physical Chemistry - Electrochemistry. B-12
Abs Jour Ref Zhur - Khimiya, 110 8, 1958, 24300
Author Tutunchich Panta S., Putanov Paula
Inst
Title Standard Electrodes in Anhydrous Acetic Acid and Quinoline
Orig Pub Glasnik Khem. drushtva, 1956, 21, No 1, 19-31
Abstract A study was made of the possibility of utilizing Ag-elec-
trodes as standard electrodes of comparison in CH 3COOH
(I) and quinoline (II),, and also in mixtures of I and II.
Tested were the systan Ag ASNO (saturated) i7n I; I+
C05 OH in II, and also Ag AgC1 ?KC1 saturated) ii! I i~nd
II. Mean values of potentials of these electrodes (6Y sa-
turated calomel clectride) are, respectively, -~- 0.87, t
0.83, * 0-34, + 0-23, t 0-17 v. In II the potentials are
more stable than in I. In the opinion of the authors the
Ag-clectrodes in the given media can not be utilized for
Card 1/2
J7-

YUGOSLAVIA/Physical Chemistry - Electrochemistry. B-12
Abs Jour ! Ref Zhur - Rhimiya, No 8, 1958, 243oo
accurate measurement of potentials; they can be recommen-
ded, however, as~standard electrodes in potentiometric
titration.
Card 2/2

YUGOSLAVIA/Physical Chemistry - Electrochemistry. B-12
Abs Jour : Ref Zhur - Khimiya, No 8, 1958, 24301
Author : Tutunchich Panta S.., Putanov Paula
Inst
Title Potentials of H rogen- and Glass Electrodes in the Sys-
tem Acetic Acid - Quinoline.
Orig Pub Glasnik Khem. drushtva, 1956, 91, No 1, 33.46
Abstract In order to determine the possibility of utilizing the po-
tentiometric method of investigation of the structure of
liquid non-ac.,ieous systems, measurements were conducted
with a hydrogen electrode (HE) (with platinized Pt) and
a glass electrode (GE), in mixtures of CH COOH (I) and
quinoline (II). The potential of HE, in ~~is system, chan-
ges with time, and after several measurements the electro-
des become unsuitable for use. GE are more stable but the
conditions of their operat16n depend on cormosition of the
glass from which they are made. In solutions having a
Card 1/2

YUGOSIAVIA/Physical Chemistry - Electrochemistry. B-12
. A~s Jour : Ref Zhur - Khimiya,, No 8, 1958, 24301
high concentration of H ions there is observed a hyste-
resis of GE readings. On the basis of an analysis of the
potential-composition diagram the conclusion ic reached
that I and II, in the liquid state, do not form stable
addition products.
Card 2/2

YUGOSLAVIA Analytic Chemistry4 Analysis of Organic
Substances.
Abs Jour: Ref Zhur-Khimiya, No 18, 1958, 6o678.
Author : Panta Tutundzic. Paula Putanov.
Inst : Chemical-35-c-l-eFfy- (Yugoslav).
Title : Potentiometric Titrattion of Organic Acids and Bases
without Solvents. I. Titration of Acetic Acid and
Organic Bases with Glass and Hydrogen Electrodes.
Orig Pub: Glasnik Hem. drustva, 1957, No 1, 1-14.
Abstract: In order to investigate the possibilities of poten-
tiometric studies in non-aqueous solutions, the
titration curves of CH3COOH (1) by means of pyri-
dine, c