ACTIVITY-COEFFICIENTS OF NANO3 IN (MG, CA, SR, AND BA)(NO3)2 + H2O SYSTEMS AT 298-K BY EMF METHODS

被引：3
|
作者：
SMITH, SN [1 ]
SARADA, S [1 ]
PALEPU, R [1 ]
机构：
[1] UNIV COLL CAPE BRETON,DEPT CHEM,SYDNEY B1P 6L2,NS,CANADA
来源：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1993年 / 71卷 / 03期
关键词：
D O I：
10.1139/v93-057
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The activity coefficients of NaNO3 in Mg(NO3)2, Ca(NO3)2, Sr(NO3)2, and Ba (NO3)2 were determined at constant total ionic strength of 0.1, 0.5, 0.75, 1.0, 1.5, and 2.0 mol kg-1 at 298 K using EMF methods. The experimental activity coefficients were analyzed using four different formalisms, namely, Reilly-Wood-Robinson, Scatchard, Pitzer, and Harned equations, and the interaction parameters were evaluated. Excess Gibbs free energy of mixing and trace activity coefficients were calculated and the results are discussed.
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页码：384 / 389
页数：6
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