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Vapour pressures at eight temperatures between 278.15 K and 323.15 K and excess molar enthalpies and volumes atT=298.15 K of (n-propylether+methanol)

1997; Elsevier BV; Volume: 29; Issue: 6 Linguagem: Inglês

10.1006/jcht.1996.0186

1096-3626

Rosa Garriga, Francisco A. Sánchez, Pascual Pérez, M. Gracia,

Phase Equilibria and Thermodynamics

Vapour pressures of (propylether+methanol) at eight temperatures betweenT=278.15 K andT=323.15 K were measured by a static method. Excess enthalpies and volumes were also measured atT=298.15 K. Reduction of the vapour pressures to obtain activity coefficients and excess molar Gibbs free energies was carried out by Barker's method. Azeotropic mixtures with a minimum boiling temperature were observed and the azeotropic coordinates were calculated.