THERMODYNAMICS OF CATION EXCHANGE ON SEMI-CRYSTALLINE ZIRCONIUM PHOSPHATE

被引：40
作者：
NANCOLLAS, GH
TILAK, BVK
机构：
[1] Chemistry Department, State University of New York at Buffalo, Buffalo
来源：
JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY | 1969年 / 31卷 / 11期
关键词：
D O I：
10.1016/0022-1902(69)80352-0
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The equilibrium exchange of Li+, K+ and Cs+ ions with the hydrogen form of semicrystalline zirconium phosphate at a constant ionic strength of 0.1 M in the reaction: RH+M+⇄RM+H+ has been studied at 25°. Solid phase activity coefficients for the exchanging ions and free energy changes were evaluated from the ion-exchange isotherms. The enthalpies of reaction were obtained by direct calorimetric measurements and the corresponding entropy values were calculated. The thermodynamic functions are interpreted in terms of the nature of the bonding between the alkali metal ions and the matrix and the concomitant changes in hydration. © 1969.
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页码：3643 / +
页数：1
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