Abstract
Isothermal P−x (vapor−liquid equilibria) and excess enthalpy (HE) data for the two binary systems propylene oxide + 2-methylpentane and difluoromethane + pentafluoroethane were measured by means of the static technique and an isothermal flow calorimeter, respectively. The experimental data are presented using temperature-dependent interaction parameters for the nonrandom two-liquid model, which were fitted simultaneously to all measured data. From the experimental P−x data, the azeotropic conditions were determined for both systems. The experimental results from this work were compared with the data of other authors.
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