%0 Journal Article
%T Thermodynamics of ion exchange equilibrium for some uni-univalent and divalent reaction systems using strongly basic anion exchange resin Indion FF-IP
%A P.U. Singare
%A R.S. Lokhande
%A T.S. Prabhavalkar
%J Bulletin of the Chemical Society of Ethiopia
%D 2008
%I Chemical Society of Ethiopia
%X The study on thermodynamics of ion exchange equilibrium for uni-univalent Cl-/I-, Cl-/Br-, and uni-divalent Cl-/SO42-, Cl-/C2O42- reaction systems was carried out using ion exchange resin Indion FF-IP. The equilibrium constant K was calculated by taking into account the activity coefficient of ions both in solution as well as in the resin phase. For uni-univalent ion exchange reaction systems, the equilibrium constant KĄŻ were also calculated by considering mole fraction of ions in the resin phase. The K values calculated for uni-univalent and uni-divalent anion exchange reaction systems were observed to increase with rise in temperature, indicating the endothermic exchange reactions having enthalpy values of 22.45, 28.57, 17.84, 15.97 kJ/mol, respectively.   KEY WORDS: Ion exchange equilibrium, Equilibrium constant in standard state, Apparent equilibrium constant, Enthalpy, Endothermic reaction     Bull. Chem. Soc. Ethiop. 2008, 22(3), 415-421.
%U http://www.ajol.info/index.php/bcse/article/view/61226