Vapor–Liquid Equilibrium in the Ni(PF₃)₄–Hydrocarbon C₅–C₈ and Chloroalkane CH_4–nCl_n (n = 2–4) System

The vapor–liquid separation factors for the system Ni(PF₃)₄–impurities, in which the impurities include pentane (3.8 ± 0.8), hexane (1.3 ± 0.3), heptane (0.6 ± 0.2), dichloromethane (3.5 ± 0.8), trichloromethane (1.5 ± 0.3), tetrachloromethane (3.0 ± 0.7), phosphorus(III) fluoride (27.7.3 ± 7.8), and branched alkanes (2-methylpentane, 3-methylpentane, 2-methylhexane, 3-methylhexane, and 3-ethylhexane) were determined at 298 K by the static phase balancing method. The experimental data were in good agreement with the estimates of the vapor–liquid separation factors based on the conformal solution theory using Lennard-Jones potential parameters.