Liquid‐liquid phase behavior of binary solutions at elevated pressures

Abstract Isothermal pressure elevation can sometimes cause liquid‐liquid phase separation of binary liquid mixtures. A quantitative thermodynamic analysis of this effect is made and applied to the system acetone–carbon disulfide at 0°C. with the use of available P‐V‐T‐X data and vapor pressure data at low pressure. Visual observations of the phase separations at pressures up to 80,000 lb./sq.in. were used to compare with the results of the thermodynamic analysis.