... GB209-2006 4. Dangerous Class: 8.1 Caustic Soda Pearls 99%English Name: Sodium HydroxideMolecular Formula: NAOHMolecular Weight: 40.01CAS ... is massive, flakes, solid, and granular.Specification: Item of indexRESULTNaOH %≥99%Na2CO3 % ≤0.5%NaCL %≤0.03%Fe2O3 % ≤0. ... inorganic salt production, preparation of borax, chromium salt, potassium permanganate, phosphate, etc., but also the use of many of caustic ...