CAS NO.: 1333-83-1 Molecular formula: NaHF2 Molecular Weight: 61.99 Melting point: 68 ℃ Density: 2.08 Content: ≥ 98% Appearance: white crystalline powder Properties: soluble in water, thermal decomposition of sodium fluoride and hydrogen fluoride. Strong acidity in the humid air to absorb water and release hydrogen fluoride, high temperature, aluminum or aluminum alloy corrosion effect of sodium fluoride. Uses: used as a food preservative, animal specimens and anatomical specimens preserved and preservative. Also used for etching glass, tin version of the manufacturing, textile processing, rust removal, pest control and leather tinplate production. Sodium fluoride and potassium hydrogen fluoride mixture can be used for metal welding agent. Can also be used to produce anhydrous hydrogen fluoride.