Comparative Study of Indion-860 and Indion GS-400 Anion Exchange Resins by Application of 131I and 82 Br as a Tracer Isotopes

The present investigation deals with the application of radioactive tracer isotopes 131I and 82Br for the performance assessment of two widely used industrial grade ion exchange resins Indion-860 and Indion GS-400. The study reveals that for both the resins, iodide ion-isotopic exchange reaction take place at the faster rate as compared to bromide exchange reaction. Also for both the resins the amount of ions exchanged increases with increase in ionic concentration and decreases with rise in temperature. The above resins were characterized based on kinetics of ion-isotopic exchange reactions. It was observed that the values of specific reaction rate, initial rate of exchange and distribution coefficient values calculated for Indion GS-400 was higher than that calculated for Indion-860 under identical experimental conditions, indicating the superior performance of Indion GS-400 over Indion-860.