Abstract

P. U. Singare¹*, R. S. Lokhande² and M. B. Nadar³

The thermodynamic study was carried to predict the selectivity behaviour of anion exchange resin Indion-102 in chloride form for iodide and bromide ions in solution. The equilibrium constant K values for the ion exchange reactions were calculated at different temperatures from which the enthalpy values were obtained. The equilibrium constant K calculated for Cl –/ I – and Cl - / Br - uni-univalent ion exchange reaction systems were observed to decrease with rise in temperature indicating the endothermic exchange reactions having enthalpy values 3.86 and 6.36 kJ /mol respectively.

Ion exchange equilibrium; equilibrium constant; ionic selectivity; enthalpy; endothermic reactions; anion exchange; Indion-102

[ View HTML Full Text]