The chemical industry uses large amounts of sodium chloride salt to produce other chemicals. Chlorine and sodium hydroxide are electrolically produced from brine. Chlorine products are used in metal cleaners, paper bleach, and . The chemical soda ash, which contains sodium, is used to manufacture , soaps, paper, and water softeners. Chemicals produced as a result of sodium chloride reactions are used in ceramic glazes, , curing of hides.