Figure 4: The phase equilibrium lines: the hydrocarbon liquid-gas line (1-5) and the liquid-liquid lines for n/pentane-water system at the concentrations: 1-0, 214; 2-0, 572; 3-0, 80; 4-0, 862; 5-0, 881; 6-0, 903; 7-0, 925; 8-0, 942; 9-0, 973; 10-0.987 (mole fractions of water).