Vapor-liquid equilibrium of binary mixtures containing diethylamine plus diisopropylamine, diethylamine plus dipropylamine, and chloroform plus diisopropylamine at 101.3 kPa, and vapor pressures of dipropylamine

Isobaric vapor-liquid equilibria have been measured with;a dynamic still fo r the systems diethylamine + diisopropylamine, diethylamine + dipropylamine , and chloroform + diisopropylamine. The chloroform + diisopropylamine syst em shows an azeotrope in the range 0-0.040 mole fraction of chloroform. The thermodynamic consistency of the experimental data was checked by means of modified Dechema test. The activity coefficients were correlated by means of the Margules, van Laar, Wilson, NRTL, and UNIQUAC equations. UNIFAC and ASOG predictions have been also used. Experimental vapor pressures of dipro pylamine are also included and the Antoine constants were determined.