Kinetics of Exchange of Some Metal Ions on Antimony (V) Hexacyanoferrate (II) and its Intercalated form With 8-Hydroxyquinoline and Polyethyleneimine Cation - Exchangers

S. A. Khalil and M. B. Omar

Department of Chemistry, Faculty of Science, Al-Fateh University, P. O. Box 13585, Tripoli, Libya.

ABSTRACT:

Kinetics of the exchange reactions of Ag+. Cu2+ and Fe3+ ions on the synthesized antimony (V) hexacyanoferrate (II) and its intercalated form with 8-hydroxyquinoline and polyethyleneimine cation - exchangers have been studied over the temperature range 30° - 50°C under dynamic and static conditions. The initial rates of exchange of the metal ions have been found to oe temperature - dependent .The thermodynamic parameters: energy of activation E , enthalpy of activation ∆H". entropy of activation ∆S and Gibbs free energy of activation ∆G* have been calculated. The exchange process has been found to be mainly chemically-controllea end accompanied by decrease of entropy. The results obtained under different experimental conditions have been discussed.

KEYWORDS:

Kinetics; hydroxyquinoline; polyethyleneimine chemically-controllea

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Copy the following to cite this article: Khalil S. A, Omar M. B. Kinetics of Exchange of Some Metal Ions on Antimony (V) Hexacyanoferrate (II) and its Intercalated form With 8-Hydroxyquinoline and Polyethyleneimine Cation - Exchangers. Orient J Chem 1998;14(2).

Copy the following to cite this URL: Khalil S. A, Omar M. B. Kinetics of Exchange of Some Metal Ions on Antimony (V) Hexacyanoferrate (II) and its Intercalated form With 8-Hydroxyquinoline and Polyethyleneimine Cation - Exchangers. Orient J Chem 1998;14(2). Available from: http://www.orientjchem.org/?p=21876