PRODUCT DESCRIPTIONEnglish Name:Sodium Hydroxide, Caustic Sodasical properties: white flakes, granules, shiny, color allowed, hygroscopic, soluble in water.Chemical properties: Melting point 318.4 â Boiling point 1390 â The relative density of 2.130Solubility: soluble in water, and strongly exothermic. Dissolved in ethanol and glycerol easily; insoluble in acetone, ether. Exposed on the air, it will eventually completely dissolved into solution.