Inorganic fluorine chemical
Industrial Sodium Fluoride
[Molecular Formula] NaF
[Molecular Weight] 41.99
[Properties]
White or offwhite powder, slight soluble in water and alcohol, its aqueous solution is of weak alkality, soluble in hydrofluoric acid.
[Uses]
It is used as insecticide in agriculture industry, antiseptic in wood industry and flux for metal in metallurgy industry. It is also used in enamel and pharmaceutical industry, in steel filleting process to reduce the melting point of filleting steel and improve welding strength, as disinfectant in fermentation and chemical reagent, as material to produce fluoride and cockroach medicine powder, etc.
[Quality Index] GB4293-84
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Item
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Index
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Note
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First Grade
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Second Grade
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Third Grade
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1. stands for no requirement;
2. the content is based on dry base;
3. sodium fluoride is white powder;
4. the agglomeration larger than 4mm in diameter is allowable, but the weight is not heavier than 5%.
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NaF, % ≥
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98.0
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95
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84
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Water-insoluble Matter, % <
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0.7
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3
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10
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Sulfate(SO4), % <
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0.3
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0.5
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2.0
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SiO2, % <
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0.5
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1.0
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Na2CO3, % <
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0.5
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1.0
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2.0
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Acidity(HF), % <
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0.1
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0.1
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0.1
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Moisture(H2O), % <
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0.5
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1.0
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1.5
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[Package] Plastic woven bag lined with polyethylene plastic bag, net weight: 50kg/bag.
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