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 obs...

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Bibliographic Details
Published in:Ionics 2012-04, Vol.18 (4), p.351-357
Main Authors: Singare, P. U., Lokhande, R. S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Electrochemistry
Energy Storage
Optical and Electronic Materials
Original Paper
Renewable and Green Energy
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Summary: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.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-011-0645-0