Technical Data Sheet
HS CODE:2826192010
UNNO:1690 CLASS:6.1
Quality Standard
Formula:NaF Molecular:41.99
No. | Item | Unit | Specification |
1. | NaF purity | % | 98 |
2. | Sodium Carbonate | % | 0.5max |
3. | Silicon Dioxide | % | 0.5max |
4. | Sulphate | % | 0.3max |
5. | HF | % | 0.1max |
6. | H2O(moisture) | % | 0.5max |
7. | Heavy metal(As Pb) | % | 0.04max |
8. | Available Fluoride | % | 43.8min |
9. | Water Insoluble matter | % | 0.7max |
Particle Size | |||
1. | -20mesh | % | 98min |
2. | +100mesh | % | 50min |
3. | -325mesh | % | 5max |
Properties:
colorless, glittering crystal or white powder; relative density is 2.5-2.6; Melting point 995, boiling point 1695; slightly soluble in alcohol, soluble in water in which it shows alkali.
Application:
Mainly used in mechanical razor blade and inlaid steel of a planer tool to reinforce the welding strength, and in melting, refinement and shielding of light metal; and also used as wood anticorrosive agent, in gemicide in brew industry, pesticides (should be painted blue), fluorine water-treating agent.
Packing:
packed by wovened bag lined with polyethylene plastics, the net weight of each bag is 50g or 25kg