Studies on Ion Exchange Resins. IX. Capacity and Specific Volumes of Quaternary Base Anion Exchange Resins

Abstract

The exchange capacities, wet weights and volumes of a quaternary ammonium anion exchange resin in a number of univalent anionic states including the halide, strong mineral acid anion, hydroxide, chloro-substituted acetate and benzene and naphthalene sulfonate states, were measured. The exchange capacity was the same for all anions, and showed the absence of appreciable adsorption effects. The swelled volume of the resin phase was correlated with the partial molal volumes of the exchange anions. Swelling appears to be determined, to a considerable extent, by ion-pair formation.

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