Isopiestic determination of osmotic coefficients and evaluation of activity coefficients of aqueous mixtures of sodium and potassium chloride at 45 degrees C

被引：15

作者：

Flesia, MA

deChialvo, MRG

Chialvo, AC

机构：

[1] UNL,FAC INGN QUIM,PROGRAMA ELECTROQUIM APLICADA & INGN ELECTROQUIM,RA-3000 SANTA FE,ARGENTINA

[2] UNL,FAC INGN QUIM,DEPT FISICOQUIM,RA-3000 SANTA FE,ARGENTINA

来源：

FLUID PHASE EQUILIBRIA | 1997年 / 131卷 / 1-2期

关键词：

osmotic and activity coefficients; isopiestic method; aqueous halide mixtures;

D O I：

10.1016/S0378-3812(97)00004-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The osmotic coefficients of aqueous mixtures of potassium chloride and sodium chloride were evaluated at 45 degrees C by the isopiestic method, varying the total molal concentration between 1 and 5 moles kg(-1) in the whole range of reduced molar fraction. The results obtained were correlated by the Pitzer equation and by that derived by Pan and Han, for the application of the McKay-Perring method. From these correlations, the activity coefficients of both salts in the mixture were calculated. A comparative analysis of the results obtained were also made. (C) 1997 Elsevier Science B.V.

引用

页码：189 / 196

页数：8

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