... mainly produces inorganic chemical products, like caustic soda in different purities and appearances (96%,99% and flakes, solid,peals); anhydrous sodium sulfite, ... products ,pls contact me directly. Many thanks and best regards.Uses of caustic soda :Mainly used in textiles industry, printing, detergent, paper- ... %≤0.900.40NaCL %≤ 0.150.03Fe2O3 %≤ 0.0050.002 caustic soda flakes 99%min SGS/BV/REACH