Thermodynamic studies of (RbF + RbCl + H2O) and (CsF + CsCl + H2O) ternary systems from potentiometric measurements at T=298.2 K

被引：9
作者：
Huang, Xiaoting [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 CHEMICAL THERMODYNAMICS | 2016年 / 103卷
基金：
中国国家自然科学基金;
关键词：
RbF/CsF; RbCl/CsCl; Pitzer model; Harned rule; Activity coefficients; MEAN ACTIVITY-COEFFICIENTS; EPSILON-INCREASING COSOLVENT; ELECTROMOTIVE-FORCE METHOD; 298.15; K; WATER MIXTURES; AQUEOUS MIXTURES; ELECTROLYTE-SOLUTIONS; OSMOTIC COEFFICIENTS; TERNARY-SYSTEM; NAF;
D O I：
10.1016/j.jct.2016.08.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermodynamic properties of (RbF + RbCl + H2O) and (CsF + CsCl + H2O) systems were determined by the potentiometric method for different ionic strength fractions y(B) of RbCl/CsCl at 298.2 K. The Pitzer model and the Harned rule were used to fit the experimental values. The Pitzer mixing parameters and the Harned coefficients were evaluated. In addition, the mean ionic activity coefficients of RbF/CsF and RbCl/CsCl, the osmotic coefficients, and the excess Gibbs energies of the systems studied were calculated. (C) 2016 Elsevier Ltd.
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收藏
页码：157 / 164
页数：8
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