MEAN ACTIVITY-COEFFICIENTS AT 25-DEGREES-C FOR NABR-CA(NO3)2-H2O MIXTURES, A TERNARY-SYSTEM WITHOUT A COMMON ION

被引：21
|
作者：
HAGHTALAB, A [1 ]
VERA, JH [1 ]
机构：
[1] MCGILL UNIV,DEPT CHEM ENGN,MONTREAL H3A 2A7,QUEBEC,CANADA
来源：
JOURNAL OF SOLUTION CHEMISTRY | 1991年 / 20卷 / 05期
关键词：
MEAN ACTIVITY COEFFICIENT; SODIUM BROMIDE + CALCIUM NITRATE; ION-SELECTIVE ELECTRODES; EMF;
D O I：
10.1007/BF00650804
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The mean ionic activity coefficients of NaBr in aqueous mixtures of NaBr and Ca(NO3)2 were determined at 25-degrees-C at a total ionic strength of 3, 4.5 and 6 molal. The measurements were made using an electrochemical cell with the ion-selective electrodes (ISE), Na-ISE against Br-ISE as a reference electrode. The experimental mean activity coefficients of NaBr obey Harned's Rule. The mean activity coefficients of Ca(NO3)2 were calculated using the cross differentiation of the mean activity coefficients.
引用
收藏
页码：479 / 493
页数：15
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