Title: A study on the distribution coefficient of iodide ions from aqueous solution on some strongly basic anion exchange resins

Authors: P.U. Singare, R.S. Lokhande, S.A. Parab, A.B. Patil

Addresses: Department of Chemistry, Bhavans College, Andheri, Mumbai 400058, India. ' Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz, Mumbai 400098, India. ' Department of Chemistry, Jain Hind College, Churchgate, Mumbai 40000, India. ' Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz, Mumbai 400098, India

Abstract: The ion exchange resins Duolite A-116, Indion 830 Type-1 and Indion N-IP Type-2 in iodide form were equilibrated separately with labelled radioactive iodide ion solutions of different concentrations varying from 0.005 M to 0.020 M in the temperature range of 25.0°C to 40.0°C. The K_d values of iodide ions for Duolite A-116 and Indion N-IP Type-2 were higher than that for Indion 830 Type-1 under identical experimental conditions. The difference in the K_d values of iodide ions for the three resins was mainly because of the swelling pressure, which depends on their water-holding capacities.

Keywords: anion exchange resins; tracer isotopes; distribution coefficient; swelling pressure; temperature effect; concentration effect; ¹³¹I isotope; Duolite A-116; Indion N-IP; Indion 830; ion exchange resins; liquid radioactive waste; nuclear waste; nuclear energy; nuclear power.

DOI: 10.1504/IJND.2009.028865

International Journal of Nuclear Desalination, 2009 Vol.3 No.4, pp.375 - 382

Published online: 09 Oct 2009 *

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