Sodium hydroxide solid insoluble in water exothermic; Also called caustic soda, caustic soda, KeXingNa, sodium hydroxide, is common and important alkali, pure anhydrous crystalline translucent, sodium hydroxide to white solid.it. Sodium hydroxide are widely used in People's Daily life is closely related with the products manufacturing and can also be applied to production pulp and paper industry, production soap and detergent, chemical, clean, refining, metallurgy, food, production fibres and textile industrial applications.