Thermodynamic properties of alcohol solutions. II. Ethanol and isopropanol systems

Abstract

New experimental data are given for the heats of mixing of the systems ethanol+toluene at 35 °C, ethanol+methylcyclohexane at 35 °C, and iso-propanol+benzene at 45 °C and for the liquid-vapour equilibrium data for the latter system at 45 °C. These data have been used together with previously published data to calculate the excess free energy, heat and excess entropy of mixing at even mole fractions for the above systems. These functions have also been calculated from published data for the systems ethanol+benzene at 45 °C and ethanol+2,2,4-trimethylpentane at 25 °C.