Caustic soda flakes are used in the production of cellulose, aluminum, soaps and detergents, synthetic fibers, rayon, cellophane, sodium salts in general, dyes and pigments, glass, pharmaceutical products, cosmetics, in the production of sodium hypochlorite and in other water treatment products. It is also used in the refining of vegetable oils, regeneration of ion exchange resins, paper production, textile industry, cotton mercerization, dry cleaning, metalworking, oil extraction, treatment of acid emissions and neutralization of effluents.