Activity Coefficients and Excess Properties at Infinite Dilution for Some Tertiary-Alkyl Ether Systems

摘要

The isobaric or isothermal vapor-liquid equilibria(VLE) were determined directly for methyl tert-butyl ether(MTBE) + C_1-C_4 alcohols. The excess enthalpy(H~E) for butane+MTBE or isobutene+MTBE and excess voLume(V~E) for MTBE+C_3-C_4 alcohols were also determined. Besides, The infinitely dilute activity coefficient, partial molar excess volumes and enthalpies at infinite dilution(γ~∞, H~(E, ∞), V~(E, ∞)) were calculated from measured data. Each experimental data were correlated with some g~E models or empirical polynomial.