Excess Gibbs Free Energies at Eight Temperatures and Excess Enthalpies and Volumes at T = 298.15 K for Butanenitrile + 2-Butanol
1997
Vapor pressures of butanenitrile + 2-butanol at eight temperatures between 278.15 K and 323.15 K were measured by a static method. Excess molar enthalpies and volumes were also measured at T = 298.15 K. Reduction of the vapor pressures to obtain activity coefficients and excess molar Gibbs free energies was carried out by fitting the vapor pressure data to the Redlich−Kister and Wilson correlations according to Barker's method. Azeotropic mixtures with a minimum boiling temperature were observed over the whole temperature range.
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