S. Qureshi, I. Ahmad, M. R. Khayer
Oct 1, 1999
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Journal
Annales De Chimie-science Des Materiaux
Abstract
Zirconium (IV) ethylenediamine has been prepared by interaction of aqueous solutions of zirconium oxychloride and ehtylenediamine at pH 4.4 and 9.6. Its anion exchange capacity, chemical and thermal stabilities, pH titration curve and chemical composition were studied. Infrared spectra using the KBr disc method, TGA and DTA were recorded. A tentative formula was proposed showing zirconium (IV) oxide : ethylenediamine in the ratio 3:1, [ZrO(OH)+2]3 [NH2 (CH2) 2NH2]. 3 H2O. Distribution coefficient (Kd) values of a number of anionic species were determined in distilled water, and various concentrations of ammonium nitrate solution. On the basis of the difference in Kd values, the separations such as Cl− - MoO42−, Br - MoO42−, I− - MoO42−, SO42− - MoO42− and C2O42− - MoO42− have been achieved successfully on its column.