Thermodynamic study of ion exchange reaction to predict ionic selectivity using ion exchange resin Indion-850

被引：3
|
作者：
Singare, P. U. [1 ]
Lokhande, R. S. [2 ]
Tiwari, S. R. D. [2 ]
机构：
[1] Bhavans Coll, Dept Chem, Bombay 400058, Maharashtra, India
[2] Univ Bombay, Dept Chem, Bombay 400098, Maharashtra, India
来源：
RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2010年 / 80卷 / 10期
关键词：
RADIOACTIVE-TRACER TECHNIQUE; ANION-EXCHANGE; DISTRIBUTION COEFFICIENT; UNI-UNIVALENT; EQUILIBRIA; CATION; TEMPERATURE; KINETICS; ISOTOPE; DEPENDENCE;
D O I：
10.1134/S1070363210100282
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The thermodynamic study was carried out to predict the selectivity behaviour of ion exchange resin Indion-850 towaed various inorganic anions like chloride, iodide, sulfate, and oxalate. The equilibrium constant K (std) values for the ion exchange reactions were calculated at different temperatures from which the enthalpy values where obtained. The K (std) values were observed to increase with the rise in temperature, indicating endothermic ion exchange reactions. The thermodynamic data obtained here reveal that iodide ions were more strongly retained on the resin surface compared to chloride ions. Also the low enthalpy and high equilibrium constant values for oxalate ions indicate the greater selectivity of ion exchange resin for oxalate ions as compared to sulfate ions.
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页码：2054 / 2058
页数：5
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