Effect of Calcium chloride and Cadmium chloride on the enthalpy of mixing of 1,4 Dioxane + Water at 303.15 K

Abstract

This paper presents the effect of two dissolved inorganic salts, CaCl2 and CdCl2 on the enthalpy of mixing of the binary 1,4
dioxane + water system has been investigated at 303.15 K in an isothermal displacement calorimeter with vapour space. A
significantly increasing trend in the endothermic excess enthalpy values for the addition of calcium chloride and cadmium chloride were noticed. The experimental values of HE were fitted into the Redlich –Kister equation, and deviations from the ideal value and binary parameters were calculated. The importance of solute–solvent interactions was demonstrated from the excess enthalpy of mixing in the positive direction with an increase in the salt concentration.