... 2 1.Detailed Product DescriptionCaustic soda flake, pearl or solid Purity 99% 98% 96%25tons/1*20"FCL 40bags ... after comfirm order5 .Application: The use of caustic soda/sodium hydroxide and alkaline desiccant, paper, aluminum smelting, refining tungsten ... and organic intermediates, old rubber regeneration system of metallic sodium, water electrolysis, as well as inorganic salt production, preparation ...