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- Title
The Selectivity of Zirconium (IV) Iodomolybdate for Some Metal-Ammine Complexes.
- Authors
Rahman, Nafisur; Ahmad, Syed Taufeeq; Azmi, Syed Najmul Hejaz
- Abstract
The sorption characteristics of Cu (II), Ni (II), Zn (II) and Cd (II)-ammine complexes on zirconium (IV) iodomolybdate, a cation exchanger, have been evaluated at different metal ion concentrations and pH values. The sorption capacity increases with increase in pH values, attaining a maximum value at pH 10 in most of the cases, while the distribution coefficient value decreases with increase in the external metal ion concentration. The sorption factors for the competing pairs of Cu-Ni, Cd-Ni, and Zn-Ni complex ions have been determined at pH 10. The sorption of metal-ammine complexes on zirconium (IV) iodomolybdate treated at elevated temperatures shows a decreasing trend as the drying temperature of the exchanger material increases.
- Subjects
CATIONS; ZIRCONIUM metallurgy; METAL ions; METAL complexes; ABSORPTION spectra; HYDROGEN-ion concentration; PHYSIOLOGY
- Publication
IUP Journal of Chemistry, 2010, Vol 3, Issue 3, p47
- ISSN
0974-6552
- Publication type
Article