Sodium hydroxide (NaOH) is a caustic reagent that is widely used to neutralize acids and prepare sodium salts of reagents. It is used in various industries, including textiles, drinking water, soaps and detergents, pulp and paper manufacturing, and as a drain cleaner.This product is a hazardous chemical (acute toxicity/flammable/skin corrosive). Please use it while wearing a protective face mask, gloves, and clothing.