VAPOR-LIQUID-EQUILIBRIA FOR THE SYSTEMS COMPOSED OF 1-CHLORO-1,1-DIFLUOROETHANE, 1,1-DICHLORO-1-FLUOROETHANE, AND 1,1,1-TRICHLOROETHANE AT 50.1-DEGREES-C

Isothermal vapor-liquid equilibria for the three binary systems 1-chlo ro-1,1-dichloroethane + 1,1-dichloro-1-fluoroethane, 1-chloro-1,1-difl uoroethane + 1,1,1-trichloroethane, and 1,1-dichloro-1-fluoroethane 1,1,1-trichloroethane and the ternary system l-chloro-l,1-difluorometh ane + 1,1-dichloro-1-fluoroethane + 1,1,1-trichloroethane have been me asured at 50.1 degrees C. The experimental data for the binary systems are correlated with the Peng-Robinson equation of state, and the rele vant parameters are presented. The predicted results for the ternary s ystem were found to be in good agreement with the experimental data.