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Isothermal Vapor−Liquid Equilibria of 1,3-Dioxolane or 1,4-Dioxane + Hexane or + Cyclohexane or + Ethanol Mixtures at T = 308.15 K

1999; American Chemical Society; Volume: 44; Issue: 2 Linguagem: Inglês

10.1021/je980132w

1520-5134

Encina Calvo Iglesias, Manuela Artal, José Muñoz-Embid, Inmaculada Velasco, Santos Otı́n,

Thermodynamic properties of mixtures

Isothermal vapor−liquid equilibria (VLE) at 308.15 K have been measured for liquid 1,3-dioxolane or 1,4-dioxane + hexane or + cyclohexane or + ethanol mixtures. The VLE data were reduced using the Redlich−Kister equation, taking into consideration the vapor-phase imperfection in terms of the second molar virial coefficients. The excess molar Gibbs energies of all the studied mixtures are positive and range from 653 J·mol-1 for 1,4-dioxane + ethanol and 1020 J·mol-1 for 1,3-dioxolane + hexane.