|  |
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| Sodium fluoride |
| Product Name |
Sodium fluoride |
| Molecular Formula |
NaF |
| Molecular Weight |
41.99 |
| Specifications |
98.00% |
| Place of origin |
Shanghai |
| Quantity |
No limit |
| Delivery Spot |
our warehouse |
| Properties |
colorless, glittering crystal or white powder; relative density is 2.558; Melting point 993 , boiling point 1695; slightly soluble in alcohol, soluble in water in which it shows alkali, and is capable of eroding glass; soluble in hydrofluoric acid to be sodium hydrogen-fluoride; toxic and with slight corrosiveness. |
| 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 25kgSS |
| Storage and Transportation |
inorganic toxic substance, and should be stored in dry and adequately ventilated warehouse, and may not be costored or co-transported with sulfuric acid and edible food. |
| |
| Product quality [National standardSSGB4293-84] |
| Item |
Index |
| Class A |
Class B |
toothpaste additives |
| NaF % |
 |
98 |
95 |
98 |
| SiO2 % |
 |
0.5 |
1.0 |
0.5 |
| Na2CO3% |
|
0.5 |
1.0 |
0.1 |
| SO4 % |
|
0.2 |
0.5 |
0.2 |
| HF % |
|
0.1 |
0.1 |
0.1 |
| water insolubles % |
|
0.7 |
3 |
0.5 |
| water (H2O)% |
|
0.5 |
1.0 |
0.5 |
| NoteSS |
| 1SSThe ehemical element are counted according to the dry basisSS |
|
| 2SSThe block diameter allowarnce for product is above 4mm, and whose weight should not be over 5%. |
|
| 3SSThe microelement in the toothpaste is as follow: heavy metal Pb0.005; Fe0.005; As0.0005% |
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