Vapor-Liquid Equilibrium at 350 K, Excess Molar Enthalpies at 298 K, and Excess Molar Volumes at 298 K of Binary Mixtures Containing Ethyl Acetate, Butyl Acetate, and 2-Butanol

摘要

Vapor-liquid equilibrium (VLE), excess molar enthalpies (H~E), and excess molar volumes (V~E) provide means of developing accurate thermodynamic models. In this work, new data of binary mixtures of ethyl acetate, butyl acetate, and 2-butanol are reported, Isothermal VLE data at 350 K were measured by using a circulation still for ethyl acetate + 2-butanol, for 2-butanol + butyl acetate, and for ethyl acetate + butyl acetate. H~E was measured at 298 K by using a SETARAM C80 calorimeter equipped with a flow mixing cell. V~E was measured at 298 K by using an Anton Paar DMA S12P densimeter. Liquid phase activity coefficients of the Wilson model and vapor phase fugacities of the Hayden-O'Connell correlation were regressed for a thermodynamic model based on the measured data. Model extrapolation agreed well with literature data. Redlich—Kister equation parameters were regressed by using only the measured V~E data.