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Sodium fluoride
Molecular formula NaF
Molecular weight 41.99
CAS    NO 7681-49-4
Characters White crystal powder
Use Used as screening agent and fusing agent.
Specification Excellent grade pure, Analytically pure , chemically pure
Executive standard GB/T 1264-1997
Technical index
Name
Excellent grade pure(%)
Analytically pure (%)
Chemically pure(%)
Content(NaF)
≥99.0
≥98.0
≥98.0
Clarity test
qualified
qualified qualified
Water undissolved substance
≤0.01
≤0.05
≤0.1
loss on drying
≤0.3
Acidity(H+),mmol/100g
≤2.5
≤5.0
≤10.0
Alkalinity(OH-),mmol/100g
≤1.0
≤2.0
≤4.0
Chloride(Cl)
≤0.002
≤0.005
≤0.01
Sulfate(SO4)
≤0.01
≤0.03
≤0.05
Fluosilicate (SiF6) ≤0.1 ≤0.6 ≤1.2
Ferrum(Fe) ≤0.002 ≤0.005 ≤0.005
Heavy metal(Pb) ≤0.001 ≤0.003 ≤0.005
Packing 500kg for bottle packing40kg for pail packing, 25kg for paper plastic packing
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