... China. The catalogue of our product is caustic soda flakes (99% 98% 96%), caustic soda pearl/prills ... , soaps and detergents, synthetic fibers, rayon, cellophane, sodium salts in general, colorants and pigments, glass, pharmaceutical ... products, cosmetics, in the production of sodium hypochlorite as well as other products for water ... .0.001% Max Caustic soda flakes(96,98,99)-Factory supply