The equilibrium vapor pressure, liquid-phase composition, and liquid-phase molar volume are presented for ethane + dimethyl sulfoxide and ethane + quinoline at 298.15, 308.15, and 318.15 K. Also, the pressure, liquid-phase compositions, and liquid-phase molar volumes on the liquid1 + liquid2 + vapor locus are presented. The termination of these loci are located and characterized.