Forward and Reverse Ion Exchange Equilibria on Antimony(V) Phosphate-I: Evaluation of Various Thermodynamic Parameters for the Exchange of Alkali and Alkaline Earth Metal Ions on its Surface

Abstract

Forward and reverse ion exchange equilibrium studies have been performed on antimony(V) phosphate cation exchanger. The various thermodynamic parameters like equilibrium constants and energy, entropy and enthalpy changes during the exchange of alkali and alkaline earth metal ions have been determined and a correlation has been made of these parameters with the ion exchange characteristics of the material. The study gives an insight to the ion exchange process going on in the exchanger phase.