Adsorption Studies on Clay Minerals. IV. The System Montmorillonite-Cesium-Potassium

The ion-exchange equilibria between a montmorillonite clay and potassium-cesium from chloride solutions have been studied by chromatographic and other methods. The results are summarized in terms of equilibrium constants and activity coefficients for the mixed clay phase. A tentative discussion is given of the rate of the exchange process, particularly as it affects the behavior of the chromatographic columns.