| Other: |
Structural formula: Na2PO3F
Molecular weight : 143.95
Physicochemical properties: colorless fine crystal or white powder. Decomposes and releases hydrogen fluoride in humid air. Soluble in water, the solution is neutral. It is easily hydrolyzed in acidic solution and decomposed into pyrophosphate by heating, and its melting point is 625 °C.
Uses: The source of fluoride used as a therapeutic toothpaste to protect teeth. It is a toothpaste abrasive, an anti-caries agent and a desensitizing agent. It is generally used in an amount of 0.7-0.76%. It is also used as a fluoride disinfectant for drinking water and a metal surface. The cleaning agent is also a raw material for preparing other monofluorophosphates, and also serves as a rust inhibitor.
Product packaging: 25kg composite kraft paper bag, carton or cardboard drum or according to customer needs.
| Item |
Index |
| Pharmaceutical Grade |
Industrial grade |
| Content (as Na2PO3F) % |
91.5-100.5 |
≥95.0 |
| Phosphorus (as P2O5) %≥ |
49 |
46 |
| Sodium (Na) %≥ |
32 |
30.4 |
| Combined fluorine (as F) %≥ |
12.54 |
12 |
| Free fluorine (as F) %≤ |
0.5 |
0.68 |
| Total fluorine (as F) %≥ |
13 |
12.5 |
| Arsenic (As) %≤ |
0.0003 |
0.001 |
| Lead (Pb) %≤ |
0.0001 |
0.001 |
| Heavy metal %≤ |
0.005 |
0.02 |
| Water insoluble matter %≤ |
0.15 |
0.2 |
| Apparent density g/cm3 |
1.5 |
1.5 |
| PH (2% aqueous solution) |
6.5-8.0 |
6.5-8.0 |
| Loss on drying (105°C/2H) %≤ |
0.2 |
0.5 |
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