Using ion-selective electrodes to study the thermodynamics of solution IV: The standard Gibbs free energies and entropies of transfer of sodium chloride from water to N,N-dimethylformamide: Water mixture at nine temperature from 5℃ to 45℃

Acta Chimica Sinica ›› 1988, Vol. 46 ›› Issue (9): 848-853. Previous Articles Next Articles

Original Articles

应用离子选择性电极进行溶液热力学研究IV: 氯化钠5-45℃间九个温度下由水至二甲基甲酰胺-水混合溶剂的标准转移Gibbs自由能及转移熵的测定

褚德萤;张颖;衣影;刘瑞麟

北京大学化学系

发布日期:1988-09-15

Using ion-selective electrodes to study the thermodynamics of solution IV: The standard Gibbs free energies and entropies of transfer of sodium chloride from water to N,N-dimethylformamide: Water mixture at nine temperature from 5℃ to 45℃

CHU DEYING;ZHANG YING;YI YING;LIU RUILIN

Published:1988-09-15

Abstract

The standard emfs. of the reversible cells without liquid junction consisting of the sodium ion glass-electrode and chloride selective electrode were measured, and the standard Gibbs free energies of transfer of NaCl from water to DMF-water mixtures were calculated The standard transfer entropies were also calculated from temps. coefficient of DG0t at nine temps. from 5 to 45? The behavior of the change of DG0t and DS0t with composition and temperature, the change of solvations of NaCl from the pure water to mixed solvents and the structure of the liquid studied are discussed.

Key words: ION SELECTIVE ELECTRODE, DMF, SODIUM CHLORIDE, SOLVENT EFFECT, ENTROPY, FREE ENERGY, SOLUTION CHEMISTRY, THERMOCHEMICAL PROPERTY

CLC Number:

O645

Cite this article

CHU DEYING;ZHANG YING;YI YING;LIU RUILIN. Using ion-selective electrodes to study the thermodynamics of solution IV: The standard Gibbs free energies and entropies of transfer of sodium chloride from water to N,N-dimethylformamide: Water mixture at nine temperature from 5℃ to 45℃[J]. Acta Chimica Sinica, 1988, 46(9): 848-853.

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应用离子选择性电极进行溶液热力学研究IV: 氯化钠5-45℃间九个温度下由水至二甲基甲酰胺-水混合溶剂的标准转移Gibbs自由能及转移熵的测定

Using ion-selective electrodes to study the thermodynamics of solution IV: The standard Gibbs free energies and entropies of transfer of sodium chloride from water to N,N-dimethylformamide: Water mixture at nine temperature from 5℃ to 45℃

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