Thermodynamics of alcohol solutions. Excess molar enthalpies of ternary mixtures containing two alcohols and one active nonassociating component

Abstract

The UNIQUAC associated-solution theory proposed by Nagata and Gotoh to calculate the excess molar enthalpy of ternary mixtures containing two alcohols and one saturated hydrocarbon is extended to predict ternary excess molar enthalpies for mixtures formed by two alcohols and one active nonassociating component. The proposed model includes only binary parameters. Calculated results derived from the model are in excellent agreement with experimental excess molar enthalpies for ethanol-1-propanol-benzene at 25°C, measured with an isothermal dilution calorimeter.