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.
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收藏
页码：479 / 493
页数：15
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