The solubility of 1.5-dimethylnaphthalene in water at 25°C was reported to be 2.74 mg(1)/kg(2) and 1.8 × 105 mol(1) dm3(2).The corresponding mass percent and mole fraction, x1, calculated by the compiler are 2.74 × 104 g(1)/100 g sln and 8.70 × 107.