Osmotic and activity coefficients of {yNaH2PO4+(1-y)Na2SO4}(aq) at the temperature 298.15 K

被引：30

作者：

Pavicevic, V ^{[1
]}

Ninkovic, R ^{[1
]}

Todorovic, M ^{[1
]}

Miladinovic, J ^{[1
]}

机构：

[1] Univ Belgrade, Fac Technol & Met, Dept Inorgan Chem Technol, YU-11001 Belgrade, Yugoslavia

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 164卷 / 02期

关键词：

isopiestic data; mixture; activity coefficient; electrolyte;

D O I：

10.1016/S0378-3812(99)00256-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The osmotic coefficients of the mixed electrolyte solution {yNaH(2)PO(4) + (1 - y)Na2SO4}(aq) have been measured by the isopiestic method, at the temperature T = 298.15 K. The activity coefficients of NaH2PO4 and Na2SO4 were calculated by Scatchard's neutral-electrolyte method and by Pitzer and Kim's treatment for mixed-electrolyte solutions. The Scatchard interaction parameters are used for calculation of the excess Gibbs energy as a function of ionic strength and ionic-strength fraction of NaH2PO4. Also, the Zdanovskii's rule of linearity is tested. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：275 / 284

页数：10