Caustic soda flake 99%min Molecular formula: naoh Molecular weight: 40 Cas no.: 1310-73-2 Hs code: 28151100 Specification: Naoh----------------99% Nacl--------------0.1% max Na2co3----------0.08% max Fe2o3-----------0.001% max Package: in 25kg poly woven bags Property: white pearls with strong corrosiveness, easily soluble in water, presenting alkaline solution and heat liberation, presenting deliquescence when exposed to air. Use: basic and important chemical feed. Used as textiles industry, printing, detergent, paper-making, soap-makinmetallurgy, glassenamel, medicament, oil-refining and making synthetic fiber, plastics, and many kinds of organic-mediacy, etc. 25kg poly woven bags