Low Price White Flake 1310-58-3 Potassium Hydroxide 95% English Name:Sodium Hydroxide, Caustic Soda Physical properties: white flakes, granules, shiny, color allowed, hygroscopic, soluble in water. Chemical properties: Melting point 318.4 â?? Boiling point 1390 The relative density of 2.130 Solubility: 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. Product Name Caustic Soda MODEL NO CROWN-CS99 CAS NO 1310-73-2 HS Code 2815110000 EINECS NO 215-185-5,231-659-4 Formular NaOH