Study on Ion Exchange Equilibrium for Some UniUnivalent and Uni-Divalent Reaction Systems Using Strongly Basic AnionExchange Resin Duolite A113

摘要

The study on thermodynamics of ion exchange equilibrium for uniunivalent Cl–/I–, Cl–/Br–, and unidivalent Cl–/ , Cl–/ reaction systems was carried out using ionexchange resin Duolite A113. 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. The K values calculated for uniunivalent and unidivalent anion exchange reaction systems were observed to increase with rise in temperature, indicating the endothermic exchange reactions having enthalpy values of 17.21, 36.60, 19.50, 18.43 kJ/mol respectively.