Pentaerythritol
Appearance: white floury crystal. M.P.: 261-262°C B.P.: 276°C Relative density: 1.395g/cm3 Refractive index: 1.548 Solubility: 15°C 1g soluble in 18ml. soluble in ethanol, glycerol and ethylene glycol; insoluble in acetone, benzene, carbon tetrachloride, ether and petroleum ether etc.