... 9%NaCL % ≤0.15%Fe2O3 % ≤0.005%Application: The use of sodium hydroxide and alkaline desiccant, paper, aluminum smelting, refining tungsten ... rayon and soap manufacturing. In addition, in the production of dyes, plastics, pharmaceutical and organic intermediates, old rubber ... , potassium permanganate, phosphate, etc., but also the use of many of caustic soda.Packing:It is packed with polyethylene bag ...