Used as raw material in the manufacture of various chemical products, manufacture of rayon, cellophane. Also used in water treatment as a neutralizing agent for acidic effluents without affecting the hardness of the water, pool maintenance, water softener. Also used in oil refining, paper pulp production, aluminum production, detergents and soaps, in textile processes, in oil refining, in the fishing industry, for rubber regeneration and metal engraving.