Isobaric vapor-liquid equilibria of methanol + methyl ethanoate, + methyl propanoate, and + methyl butanoate at 141.3 kPa

Abstract

Isobaric vapor−liquid equilibrium data at 141.3 kPa for the binary systems methanol + methyl ethanoate, +methyl propanoate, and +methyl butanoate are presented. All mixtures show positive deviations from ideality but only the mixtures methanol + methyl ethanoate and methanol + methyl propanoate show a minimum temperature azeotrope. The results are tested for thermodynamic consistency and correlated with several equations. The results are compared with the predictions of the ASOG and UNIFAC methods.