Phase equilibria on seven binary mixtures

Vapor-liquid equilibria are reported for the following five systems: phenol + styrene; ethyl mercaptan + n-butane; tert-butyl mercaptan + propane; dim ethyl ether + propane; trifluoroacetic acid + hydrogen chloride. The system pressure and temperature were measured at several charge compositions alon g two isotherms for each system. Equilibrium vapor- and liquid-phase compos itions were derived from the PTx data using the Soave equation of state to represent the vapor phase and the Wilson or NRTL activity coefficient model to represent the liquid phase. Liquid-liquid equilibrium studies were perf ormed on the dimethyl carbonate + water system at two temperatures by analy zing samples taken from each liquid phase. The solubility of hydrogen in al pha-methyl benzyl alcohol was measured at three pressures at each of three temperatures.