Preparation and Properties of a Mercury Selective Ion Exchanger Cerium(IV) Selenite

Abstract

A new inorganic ion exchanger, cerium(IV) selenite has been synthesized with a cation exchange capacity of 0.98 mequiv g−1. It is fairly stable in water and in dilute solutions of acids, bases and salts. The Kd values for number of metal ions were determined in different solvent systems. The exchanger possesses a high affinity for Hg(II) and hence its separation from certain metal ions have been made.