Sodium Fluoride
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CAS No.:7681-49-4
Molecular Formula: NaF
Quality Standard: GB4293-84
Specifications:
Class | Chemical Composition(%) | ||||||
NaF | SiO2 | Na2CO3 | SO22- | HF | Water-insoluble | H2O | |
Not less than | Not more than | ||||||
first class | 98 | 0.5 | 0.5 | 0.3 | 0.1 | 0.7 | 0.5 |
second | 95 | 1.0 | 1.0 | 0.5 | 0.1 | 3 | 1.0 |
third | 84 | — | 2.0 | 2.0 | 0.1 | 10 | 1.5 |
Physical properties: White crystal or powder. Relative density quantity is 2.558, the melting point is 993℃, boiling point is 1704℃, can solute in water, and slightly solute in alcohol, poisonous, it's aqueous solution can corrode glass.
Applications: Sodium Fluoride is used in the manufacture of effervescing steel, and the smelting and refining of light metals. It is also used in fluorination of drinking water, as a wood preservative, an adhesive preservative. An insecticide, a protective coating for metals, a pickle for steels and other metals, a flux for soldering and welding, as well as a flux and pacifier for ceramic, glass and porcelain enamel.
Packing: In 50kg PP bags, Lined with high-pressure plastic film, or according to contract's requirements.
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