VAPOR-LIQUID-EQUILIBRIUM OF BINARY-MIXTURES WITH N-PROPANOL

Vapour-liquid equilibria of n-propanol with n-methylpyrrolidone (NMP), dimethylformamide (DMFA), 1,4-dioxane (DIOX), dimethylsulphoxide (DMSO), nitromethane (NM), acetone (ACET), diethylether (DEE) and ethylene glycol (EG) were measured by an entrainment method, resp. by an equilibrium still. A solution model was developed to describe the vapour/liquid equilibria of the mixtures consisting of propanol and aprotic components in terms of self-association of pure components and solvation between unlike molecules. The influence of the properties of the pure components on the excess Gibbs energy was discussed.