Sodium monofluorophosphate is an inorganic compound. Its chemical formula is Na2PO3F. It could be shorten as SMFP or MFP. It is used in many products and processes, including toothpaste, water fluoridation, and laboratory experiments.
Basic Info
| Chemical formula | Na2POзF | Safety Description | S22; S24/25 |
| Molecular weight | 143.95 | Hazard symbols | Xn |
| CAS No. | 10163-15-2 | Hazard Description | R22 |
| EINECS No. | 233-433-0 | MDL No. | MFCD00014248 |
| Melting point | 625°C | RTECS No. | TE6130000 |
| Water solubility | Soluble | PubChem No. | 24861253 |
| Density | 2.5 g/cm3 | Appearance | White crystalline powder |
Sodium monofluorophosphate structure
The structure of sodium monofluorophosphate is PO3F2– in a tetrahedral configuration, where P is at the center of the tetrahedron, and other atoms ( three O’s and one F ) occupy a vertex each.
Common name of this compound.
Its common name is sodium monofluorophosphate. And it has a lot of alternative names such as:
Sodium fluorophosphate 94%，Phosphorofluoridicacid sodiumsalt, etc
SMFP Types.
Toothpaste grade Sodium monofluorophosphate:
- This type of SMFP is an excellent fluorine additive for medicated toothpaste, which has the advantages of low toxicity, stable fluoride ion concentration and inhibitory effect on many kinds of bacteria.
- It has been used in the preparation of anti-caries agent, tooth desensitizer fluoride toothpaste since the 1960s, and has been widely used after 1970s.
- It can also be used as additives for drinking water and children’s milk.
Industrial grade SMFP:
- This grade of SMFP could be added into products as metal surface cleaning agent.
- It could be used as a flux for metal industry.
- Beisdes it can also be used special glass manufacturing, cement corrosion inhibitor, fungicide, and antiseptic.
High purity grade SMFP:
- Fine chemicals.
- Medicine.
- Experimental agent.
Battery grade sodium monofluorophosphate
With the development of the new energy industry, some companies have already developed method for the preparation of battery-grade sodium monofluorophosphate.
The indexes are as following:
The main content of sodium monofluorophosphate is >98%, chlorine ion <5ppm, turbidity ≤1NTU, color <10Hazen, free acid <50ppm, water <200ppm, which can reach the standard of sodium monofluorophosphate used in battery industry.
However, the industry application of this grade is still under developing.
Applications
Please click “what sodium monofluorophosphate does ” for the applications of this chemical.
Conclusion
Sodium monofluorophosphate is an inorganic compound with the chemical formula is Na2PO3F. So, it is considered to be a type of phosphate and fluoride. Its properties are special due to its special negative ion, and very differ mechanism of action. Usually, there are three grades of this chemical, and the battery grade sodium monofluorophosphate is still under developing at the moment. There are also a lot of applications because of its special properties. In some contexts, it is right to called it monofluorophosphate, sometimes it is not right (Read “What is monofluorophosphate?” for the specific explanation).
