... .soluble in water3.strong corrosive4.soaps,detergents,textiles and paper Specification:Industrial Grade according to GB/T209-2006Purity(NaOH ... maxIron(Fe) :0.01%ApplicationWidely used in paper making, synthetic washing and soap, viscose fiber and cotton fabrics, rayon, ... , etc. Also used in the manufacture of chemicals, paper, soap and detergent, rayon and cellophane, processing bauxite system of ...