Activity coefficients of CsF in (Urea + H2O) or (N-methylformamide + H2O) mixed solvents at 298.2 K

被引：6

作者：

Hao, Xiuhua ^{[1
]}

Li, Shu'ni ^{[1
]}

Zhai, Quanguo ^{[1
]}

Jiang, Yucheng ^{[1
]}

Hu, Mancheng ^{[1
]}

机构：

[1] Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Macromol Sci Shaanxi Prov, Xian 710062, Shaanxi, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2016年 / 220卷

基金：

中国国家自然科学基金;

关键词：

Activity coefficient; CsF; Urea; N-methylformamide; Potentiometric method; ETHANOL-WATER MIXTURES; EPSILON-INCREASING COSOLVENT; ELECTROMOTIVE-FORCE METHOD; 298.15; K; AQUEOUS MIXTURES; PLUS WATER; CELL H2(PT)-HCL-AGCL-AG; ETHYLENE CARBONATE; SOLVENT MIXTURES; EMF-MEASUREMENTS;

D O I：

10.1016/j.molliq.2016.05.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reports the thermodynamic properties of CsF in (Urea + H2O) or (N-methylformamide + H2O) mixed solvents by potentiometric method at 298.2 K. The experimental data are fitted using the Pitzer, modified Pitzer and extended Debye-Htickel equation. The mean activity coefficients, osmotic coefficient and excess Gibbs free energies are obtained and the corresponding derived parameters are reported at the same time. The standard free energy of transference and the primary hydration number are also obtained. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：829 / 835

页数：7

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