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Molecular formula ：NaF Molecular weight ：41.99
Application ：Aluminum smelting and welding flux, medical and wood preservatives, brewing industry fungicides, agricultural pesticides, drinking water fluorination treatments, used in the paper industry, toothpaste production, chemical reagents, also used in strip and stainless steel Pickling, production of other fluoride raw materials, production of adhesives, paper, and HF in the production of elemental fluorine. In addition, there are also applications in the enamel pharmaceutical industry.
Property ：Colorless bright crystal or white powder, belonging to tetragonal crystal, with positive hexagonal or octahedral crystal, soluble in water, slightly soluble in alcohol, aqueous solution is alkaline reaction, can corrode glass. Soluble in hydrofluoric acid to form sodium hydrogen fluoride, toxic! It can corrode skin and stimulate mucous membranes. Invade the nervous system. The specific gravity is 1.02 g/mL (20 ° C), the melting point is 993 ° C, and the boiling point is 1700 ° C.
CAS NO.:7681-49-4
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Project
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Indicator
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Pharmaceutical grade / toothpaste grade
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Industrial grade
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Appearance identification
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White powder
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White powder
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Content % ≥
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99
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98.5
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Water insolublematter ％≤
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0.05
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0.1
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Organic matter volatilization ％≤
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Compliance test
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Compliance test
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Sulfate（SO4） ％≤
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0.01
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0.05
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Heavy metal ％≤
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0.003
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0.005
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Plumbum（Pb） ppm≤
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10
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20
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arsenic（As） ppm≤
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2
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5
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acidity（H+） ％≤
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0.05
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0.2
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Alkalinity（OH-） ％≤
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0.04
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0.16
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chloride（Cl） ％≤
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0.012
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0.02
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Fluorosilicate（SiF6） ％≤
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0.001
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0.6
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Ferrum（Fe） ％≤
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0.001
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0.005
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PH（5% aqueous solution）
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6.5-8.0
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6.5-8.0
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Loss on drying （150℃/4H） ％≤
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1.0
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0.2
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Supply reference
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Production Process
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Packing specification
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Packed in 20kg or 25kg woven bags or composite kraft bags, cartons or cardboard drums.
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Quote batch
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Quote reference yuan/ton
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Quote validity period
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