Collect. Czech. Chem. Commun. 1982, 47, 3177-3187

Liquid-vapour equilibrium and heats of mixing in the ethanol-acetonitrile system

Vladimír Dohnal, František Veselý, Robert Holub and Jiří Pick

Department of Physical Chemistry, Prague Institute of Chemical Technology, 166 28 Prague 6


Vapour-liquid equilibrium and heats of mixing were measured in the ethanol-acetonitrile system. The isobaric vapour-liquid equilibrium measurements were carried out at the pressures of 43.35, 56.44, 69.48 and 86.05 kPa and the heats of mixing were measured at the temperatures of 298.15, 308.15 and 318.15 K. The individual vapour-liquid equilibrium data sets were correlated by various two-parameter equations and the data on heats of mixing by the Redlich-Kister polynomial. The extensive data obtained for both excess functions, covering the temperature range of 50 K, were correlated successfully by the Wilson equation with the energy parameters linearly dependent on temperature.