Thermodynamics of aqueous electrolyte solutions isopiestic determination of osmotic and activity coefficients in LiCl-MgCl~2-H~O at 25℃

Acta Chimica Sinica ›› 1992, Vol. 50 ›› Issue (9): 839-848. Next Articles

Original Articles

含锂水盐体系热力学性质研究:LiCl-MgCl~2-H~O体系渗透系数和活度系数的等压测定

姚燕;孙柏;宋彭生;王瑞陵;陈敬清

中国科学院青海盐湖研究所

发布日期:1992-09-15

Thermodynamics of aqueous electrolyte solutions isopiestic determination of osmotic and activity coefficients in LiCl-MgCl~2-H~O at 25℃

YAO YAN;SUN BAI;SONG PENGSHENG;WANG RUILING;CHEN JINGQING

Published:1992-09-15

Abstract

The osmotic and activity coefficients of aqueous mixtures of LiCl and MgCl2 in the range low concentration to near crystallization limits and the solubility of LiCl in water were measured by using the isopiestic method at 25? The experimental iso-water activity lines obey extended Zdanovskii rule well. The mean activity coefficients of LiCl and MgCl2 in pure and mixing solns were obtained form the osmotic coefficients by Gibbs-Duhem equation and Mc Kay-Perring method, resp. The predicted solubilities for the system studied using Pitzer's approach were shown to be in reasonable agreement with experimental results.

Key words: WATER, MAGNESIUM CHLORIDE, OSMOTIC COEFFICIENT, LITHIUM CHLORIDE, ACTIVITY COEFFICIENT

CLC Number:

O642

Cite this article

YAO YAN;SUN BAI;SONG PENGSHENG;WANG RUILING;CHEN JINGQING. Thermodynamics of aqueous electrolyte solutions isopiestic determination of osmotic and activity coefficients in LiCl-MgCl~2-H~O at 25℃[J]. Acta Chimica Sinica, 1992, 50(9): 839-848.

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含锂水盐体系热力学性质研究:LiCl-MgCl~2-H~O体系渗透系数和活度系数的等压测定

Thermodynamics of aqueous electrolyte solutions isopiestic determination of osmotic and activity coefficients in LiCl-MgCl~2-H~O at 25℃

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