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          Ammonium bifluoride
          Molecular formula NH4HF2
          Molecular weight 57.04
          CAS    NO 1341-49-7
          Characters White orthorhombic crystal
          Use Used for carving for china and glass.
          Specification Analytically pure , chemically pure
          Executive standard GB/T 1278-1994
          Technical index
          Name
          Analytically pure (%) Chemically pure(%)
          Content
          ≥98.0
          ≥97.0
          Ignition residue(Sulfate)
          ≤0.01
          ≤0.05
          Chloride(Cl)
          ≤0.001
          ≤0.005
          Sulfate(SO4)
          ≤0.005
          ≤0.01
          Fluosilicate (SiF6)
          ≤0.2
          ≤0.5
          Ferrum(Fe)
          ≤0.001
          ≤0.005
          Heavy metal(Pb)
          ≤0.002 ≤0.005
          Packing 500kg for bottle packing40kg for pail packing, 25kg for paper plastic packing
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