Salt effect on the enthalpy of mixing of 2-propanol + acetic acid at 303.15 K

This paper presents the effect of two dissolved inorganic salts (zinc chloride, ZnCl₂ and ammonium chloride, NH₄Cl) on the enthalpy of mixing (H^E) of 2-propanol + acetic acid binary system measured at 303.15 K using an isothermal displacement calorimeter with vapour space. A decreasing trend in the excess enthalpy of mixing values in the presence of ZnCl₂ and NH₄Cl indicate the endothermic behavior of this system. The Redlich-Kister equation has been used to fit the experimental H^E data. The deviations from the ideal value and binary parameters were calculated and reported.