Abstract

Subhash Chand*, Seema, Chandra Vijay Chahal and Arti

A new three component cation exchanger [Stannic(IV) iodosilicate] has been prepared by adding a mixture of 0.1M potassium iodate and 0.1M sodium metasilicate to 0.1M stannic chloride and maintained pH 1. The ion exchange capacity of the exchanger has been determined (0.66 meq/g) for Na+ ions. The IEC for various other metal ions has also been determined. The cation exchanger is found to have high thermal and chemical stability. The synthesized cation exchanger is also characterized by IR, TGA, SEM and XRD studies. The distribution behaviour of the exchanger for Mg(II), Ni(II), Zn(II), Cu(II), Mn(II), Co(II), Pb(II), Bi(III), Cd(II) and Ca(II) metal ions has been studied. On the basis of the differences in distribution coefficients, three binary separations (Mg2+-Cd2+, Ni2+-Cd2+, Zn2+-Cd2+) of metal ion pairs have been achieved.

Inorganic cation exchanger; Stannic(IV) iodosilicate; Ion exchange capacity; Distribution studies; Binary separation

[ View HTML Full Text]