Isothermal Vapor−Liquid Equilibria of Ethyl Acetate + Dibromomethane or + Bromochloro-methane or + 1,2-Dichloroethane or +1-Bromo-2-chloroethane at T = 313.15 K.

Abstract

Isothermal vapor−liquid equilibria (VLE) at 313.15 K have been measured for liquid ethyl acetate + dibromomethane or + bromochloromethane or + 1,2-dichloroethane or + 1-bromo-2-chloroethane mixtures. The VLE data were reduced using the Redlich−Kister equation by taking into consideration the vapor-phase nonideality in terms of the second molar virial coefficients, and the liquid activity coefficients were correlated by means of the Margules, van Laar, Wilson, NRTL, and UNIQUAC equations. The thermodynamic consistency of the experimental data was checked by means of the test of Van Ness et al. in the version of Fredenslund et al. The excess molar Gibbs energies of all of the studied mixtures are negative and range from −75 J mol-1 for ethyl acetate + 1-bromo-2-chloroethane to −300 J mol-1 for ethyl acetate + bromochloromethane at a mole fraction of x = 0.5.