Abstract
In the present investigation, short-lived radioisotopes were applied to study the thermodynamics of ion-isotopic exchange reactions using Tulsion A-23 (nuclear grade) and Indion-454 (non-nuclear grade) anion exchange resins. It was observed during the bromide ion-isotopic exchange reaction using Tulsion A-23 resins that the enthalpy and energy of activation values calculated were 6,831.1 and 9,412.6 J mol−1, respectively, which were less than the respective values of 7,277.9 and 9,859.4 J mol−1 obtained for the same reaction using Indion-454 resins. The identical trend was observed for the two resins during the iodide ion-isotopic exchange reaction. The thermodynamic data suggest that Tulsion A-23 resins were more efficient than Indion-454. This was further confirmed from the fact that under identical experimental conditions higher amount of ions were exchanged using Tulsion A-23 resins as compared to those using Indion-454 resins. The overall results reveal superior performance of Tulsion A-23 over Indion-454 resins under identical experimental conditions.
Published Version
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