Results 161 to 170 of about 22,563,925 (190)
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Collection of Czechoslovak Chemical Communications, 1991
General relations among thermodynamic parameters, which characterize the transfer of the ions H+ and OH- from the aqueous into nitrobenzene phase of the two-phase water-nitrobenzene extraction system and dissociation equilibria of H2O in both phases of this system, have been derived.
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General relations among thermodynamic parameters, which characterize the transfer of the ions H+ and OH- from the aqueous into nitrobenzene phase of the two-phase water-nitrobenzene extraction system and dissociation equilibria of H2O in both phases of this system, have been derived.
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Extraction Distribution of 2-Nitroso-1-Naphthol in the Two-Phase Water-Nitrobenzene System
Zeitschrift für Physikalische Chemie, 2005Abstract General relations among the thermodynamic parameters, which characterize dissociation equilibria of an acid HA in both phases of a two-phase extraction system and ion transfers across the interface of this system, was formulated.
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Journal of Electroanalytical Chemistry, 1983
Abstract The transfer of Cs + and TMA + (tetramethylammonium) cations across the water-nitrobenzene interface was studied by the cyclic voltammetry method in the temperature range 5–65°C. With the use of simple thermodynamic cycles, the changes of the enthalpy and entropy of individual transfer of several univalent cations (Li + , Na + , H + , K + ,
Emanuel Makrlík, Le Quoc Hung
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Abstract The transfer of Cs + and TMA + (tetramethylammonium) cations across the water-nitrobenzene interface was studied by the cyclic voltammetry method in the temperature range 5–65°C. With the use of simple thermodynamic cycles, the changes of the enthalpy and entropy of individual transfer of several univalent cations (Li + , Na + , H + , K + ,
Emanuel Makrlík, Le Quoc Hung
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Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1983
Free energies of solution of 1 : 1 electrolytes in nitrobenzen have been obtained from solubility measurements. Free energies of transfer for these electrolytes from water to nitrobenzene were obtained by combining their free energies of solution in the organic solvent and in water.
Angela F. Danil de Namor +2 more
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Free energies of solution of 1 : 1 electrolytes in nitrobenzen have been obtained from solubility measurements. Free energies of transfer for these electrolytes from water to nitrobenzene were obtained by combining their free energies of solution in the organic solvent and in water.
Angela F. Danil de Namor +2 more
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Journal of Radioanalytical and Nuclear Chemistry Articles, 1993
Various volatile products formed in the γ-radiolysis of water-nitrobenzene-carbon tetrachloride two phase systems have been identified using GC-MS and GC-FTIR systems. The conditions for the separation of the products are described in detail. It was found that product formation is dependent on the composition of the systems.
J. Kuruc, M. K. Sahoo
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Various volatile products formed in the γ-radiolysis of water-nitrobenzene-carbon tetrachloride two phase systems have been identified using GC-MS and GC-FTIR systems. The conditions for the separation of the products are described in detail. It was found that product formation is dependent on the composition of the systems.
J. Kuruc, M. K. Sahoo
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Journal of Radioanalytical and Nuclear Chemistry Letters, 1992
The influence of nitrobenzene and chlorobenzene on the total radiation yield of chloride ions in the γ-irradiation of water-carbon tetrachloride two-phase systems has been determined. Nitrobenzene at small concentrations shows a pronounced protective influence on the radiation destruction of carbon tetrachloride.
J. Kuruc, A. Hlatká
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The influence of nitrobenzene and chlorobenzene on the total radiation yield of chloride ions in the γ-irradiation of water-carbon tetrachloride two-phase systems has been determined. Nitrobenzene at small concentrations shows a pronounced protective influence on the radiation destruction of carbon tetrachloride.
J. Kuruc, A. Hlatká
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Journal of Radioanalytical and Nuclear Chemistry Articles, 1991
Standard Gibbs energies of transfer of cesium ion from water to nitrobenzene and nitrobenzene-carbon tetrachloride mixture have been evaluated from electrochemical measurements. From the results the conclusion can be drawn that with increasing dielectric permitivity of organic mixed solvents the value of the Gibbs transfer energy of Cs+ ion decreases.
A. Paulenová, V. Švec, R. Kopunec
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Standard Gibbs energies of transfer of cesium ion from water to nitrobenzene and nitrobenzene-carbon tetrachloride mixture have been evaluated from electrochemical measurements. From the results the conclusion can be drawn that with increasing dielectric permitivity of organic mixed solvents the value of the Gibbs transfer energy of Cs+ ion decreases.
A. Paulenová, V. Švec, R. Kopunec
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Collection of Czechoslovak Chemical Communications, 1990
General relations among thermodynamic parameters characterizing chemical equilibria with species I-, I3-, I5-, and I2 in the two-phase water-nitrobenzene extraction system have been derived. Furthermore, these relations have been used for calculating equilibrium constants K1aq(I3-) and K2aq(I5-) corresponding to homogeneous reactions I-(aq) + I2(aq ...
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General relations among thermodynamic parameters characterizing chemical equilibria with species I-, I3-, I5-, and I2 in the two-phase water-nitrobenzene extraction system have been derived. Furthermore, these relations have been used for calculating equilibrium constants K1aq(I3-) and K2aq(I5-) corresponding to homogeneous reactions I-(aq) + I2(aq ...
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Collection of Czechoslovak Chemical Communications, 1972
J. Hejtmánková, Z. Kučera, J. Duben
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J. Hejtmánková, Z. Kučera, J. Duben
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Colloids and Surfaces, 1992
Abstract By using known thermodynamic parameters, the Briggs logarithms of the individual extraction constants for the ML + complex cations (M + = Na + , K + , Rb + , Cs + ; L = dibenzo-24-crown-8) in the water—nitrobenzene extraction system at 25 C have been evaluated. It has been found that these constants increase in the order Na + + + + ,
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Abstract By using known thermodynamic parameters, the Briggs logarithms of the individual extraction constants for the ML + complex cations (M + = Na + , K + , Rb + , Cs + ; L = dibenzo-24-crown-8) in the water—nitrobenzene extraction system at 25 C have been evaluated. It has been found that these constants increase in the order Na + + + + ,
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