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      Ammonium silicofluoride

      CAS No.: 1341-49-7

      Molecular formula: NH4HF2

      Molecular weight: 57.04

      Property: White crystals, slightly sour. Easy to deliquesce, easy to agglomerate, soluble in water, slightly soluble in alcohol. Decomposed in hot water, the aqueous solution is acidic.

      Product Standard: National Standard GB 28655-2012

      Index Superior product First grade
      Hydrofluoric Acid(NH4HF2)(On a dry basis)ω/% ≥ 98.0 97.0
      Fluorosilicic Acid[(NH4)2SiF6]ω/% ≤ 0.5 1.5
      Loss on drying ω/% ≤ 1.5 3.0
      Ignition Residue ω/% ≤ 0.1 0.2
      Sulfate(SO4)ω/% ≤ 0.1 0.1

      Packing: Plastic woven bags lined with polyethylene plastic film bags, net weight 25kg per bag.

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