... refund after comfirm order5 .Application: The use of caustic soda/sodium hydroxide and alkaline desiccant, paper, aluminum smelting, refining tungsten, ... pharmaceutical and organic intermediates, old rubber regeneration system of metallic sodium, water electrolysis, as well as inorganic salt production, preparation of ... ,best price.4,Small quantity is welcomed 99%min Sodium Hydroxide industrial grade