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        Ammonium fluoride
        Molecular formula NH4F
        Molecular weight 37.04
        CAS    NO 12125-01-8
        Characters White crystal
        Use Used as precipitant, glass carve, etc.
        Specification Excellent grade pure, Analytically pure , chemically pure
        Executive standard GB/T 1276-1999
        Technical index
        Name
        Excellent grade pure(%)
        Analytically pure (%)
        Chemically pure(%)
        Content(NH4F)
        ≥96.0
        ≥96.0
        ≥95.0
        Clarity test
        qualified
        qualified qualified
        Ignition residue(Sulfate)
        ≤0.005
        ≤0.02
        ≤0.05
        Free acid(NH4HF2)
        ≤0.2
        ≤0.5
        ≤1.0
        Free alkali
        qualified
        qualified qualified
        Chloride(Cl)
        ≤0.0005
        ≤0.005
        ≤0.01
        Sulfate(SO4)
        ≤0.005
        ≤0.01
        ≤0.02
        Fluosilicate (SiF6) ≤0.08 ≤0.30 ≤0.60
        Ferrum(Fe) ≤0.0005 ≤0.002 ≤0.004
        Heavy metal(Pb) ≤0.0005 ≤0.001 ≤0.002
        Packing 500kg for bottle packing40kg for pail packing, 25kg for paper plastic packing
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