Solubility Prediction of CsCl-Cs2SO4-H2O System at 298.15K Using the Ion-Interaction Model

Abstract

The component solubilities of CsCl-Cs2SO4-H2O system at 298.15K were calculated by using Pitzer ion inter- action model and its extended HW models. Excellent agreement with experimental solubilities indicated that the models can be successfully used to calculate the component solubilities. This study affords the necessary parameters for solubility predictions of complicated systems and establishes a theoretical basis for the separation of these valuable metals from salt lake brine. we present the solubility calculation of CsCl-Cs2SO4-H2O at 298.15K by using the Pitzer ion-interaction model. Some mixing ternary parameters derived from this calculation can be used in solubility prediction of more complicated quater- nary or quinary systems constituted by Cs + , Cl - , SO4 2- and