Product name Sodium hydroxide
Alias Sodium hydroxide; Caustic soda; lye, caustic; sodium hydrate; soda lye; white caustic
CAS RN 1310-73-2;8012-01-9
EINECS No. 215-185-5
Molecular formula NaOH
Molecular weight 41.0045
Hazard label C:Corrosive

Risk Phrase R35;
Safety Phrase S24/25; S37/39; S45;
Physical & chemical properties Appearance Pure product is colorless transparent crystal.
Melting point 318.4℃
Boiling point 1390℃
Relative density 2.130
Solubility Well soluble in water and strongly exothermic. Soluble in ethanol and glycerin; insoluble in acetone and ether. Exposed in air, will be completely dissolved into solution.
Features: Solid main part is white, gloss, allowing colored. Hygroscopic, well soluble in water.
Use Basic chemical raw material, used as high-purity reagent. Widely used in chemical industry, metallurgy, papermaking, petroleum, tectile and daily chemical, etc. Used in the production of soap, paper amd rayon, cotton fabric finishing and kerosene refining.