Effect of Dimethyl Oxalate on the Vapor-Liquid Equilibria of the Binary System of Methanol-Dimethyl Carbonate

The atmospheric vapor-liquid equilibrium data of the binary system methanol dimethyl carbonate were measured.Integral method was used to test the thermodynamic consistency.The activity coefficient of the liquid phase was calculated by the Wilson equation and satisfactory correlation result of the experimental data was obtained.The effect of dimethyl oxalate on the vapor-liquid equilibrium of this binary azeotropic system was investigated.