An evaluation of thermodynamic analyses of the vapor—liquid equilibria in the ternary system acetone—chloroform—methanol and its binaries

Abstract

The vapor—liquid equilibria for the ternary system acetone—chloroform—methanol and its binaries was determined at 25°C by a modified isoteniscope technique. These data and also those available, were used to develop recommendations for general procedures to be used in treating any ternary system. Calculations of azeotropic behaviour were made and the change in vapor pressure with temperature — along the azeotropic line — as well as the latent heat of vaporization of the azeotropic mixtures was established. Various equations were explored (relating P and Y directly with X, the Wilson equation and an equation based on the separation factor) for correlating the data and predicting azeotropes.