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By certification 
CAS No.:7681-49-4
Molecular Formula: NaF Specifications:GB4293—84
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.
