The solubility of propylbenzene in water at 25°C was reported to be 0.070 mg(1) cm3 sln. The corresponding mass percent and mole fraction, x1, calculated by the compiler are 0.0070 g(1)/100 g sln and 1.05 × 105. The assumption that 1.00 cm3 sln = 1.00 g sln was used in the calculation.