Liquid-Vapow Equilibria. III. The Systems Benzene-n-heptane, n-Hexane-chlorobenzene, and cyclohexane-nitrobenzene

Abstract

Liquid-vapour equilibrium compositions and pressures and relevant thermodynamic functions are given for the systems benzene-n-heptane at 80 °C., n-hexane-chlorobenzene at (65 °C., and cyclohexane-nitrobenzene at 80 °C. A comparison with values obtained previously for the first of these systems is used to demonstrate the improved performance of a new equilibrium still which is described. It is shown that consistent results can be obtained with the new still for miscible systems having a relative volatility in the range 1.0 to 14. Equilibrium data are also given for the system n-hexane-chlorobenzene at 760 mm. Hg to permit comparison with the performance of other equilibrium stills.