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Studies on ion-isotopic exchange reactions using nuclear grade ion exchange resins

Studies on ion-isotopic exchange reactions using nuclear grade ion exchange resins The present paper deals with the study of iodide and bromide ion-isotopic exchange reactions by application of radioactive tracer technique. The specific reaction rate (per minute) of both the reactions decreases with rise in temperature and increases with concentration of ionic solution. It was observed that due to solvation effect, the iodide ion-isotopic exchange reaction take place at a faster rate than bromide ion-isotopic exchange reaction. Also for iodide ion-isotopic exchange reaction, the distribution coefficient (K d ) values were higher than that for bromide ion-isotopic exchange reaction. The application of tracer technique was further extended for characterization of two widely used nuclear grade ion exchange resins Tulsion A-33 and Duolite ARA 9366. It was observed that the values of K d, specific reaction rate (per minute), amount of ion exchanged (millimoles), and percentage of ions exchanged for Tulsion A-33 resins are higher than that for Duolite ARA 9366 resins under identical experimental conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Studies on ion-isotopic exchange reactions using nuclear grade ion exchange resins

Ionics , Volume 18 (4) – Nov 15, 2011

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References (28)

Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer-Verlag
Subject
Chemistry; Renewable and Green Energy; Electrochemistry; Condensed Matter Physics; Optical and Electronic Materials
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-011-0645-0
Publisher site
See Article on Publisher Site

Abstract

The present paper deals with the study of iodide and bromide ion-isotopic exchange reactions by application of radioactive tracer technique. The specific reaction rate (per minute) of both the reactions decreases with rise in temperature and increases with concentration of ionic solution. It was observed that due to solvation effect, the iodide ion-isotopic exchange reaction take place at a faster rate than bromide ion-isotopic exchange reaction. Also for iodide ion-isotopic exchange reaction, the distribution coefficient (K d ) values were higher than that for bromide ion-isotopic exchange reaction. The application of tracer technique was further extended for characterization of two widely used nuclear grade ion exchange resins Tulsion A-33 and Duolite ARA 9366. It was observed that the values of K d, specific reaction rate (per minute), amount of ion exchanged (millimoles), and percentage of ions exchanged for Tulsion A-33 resins are higher than that for Duolite ARA 9366 resins under identical experimental conditions.

Journal

IonicsSpringer Journals

Published: Nov 15, 2011

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