Sodium Fluoride
- CAS
- 7681-49-4
- EC
- 231-667-8
- Sectors
- Water & Wastewater Treatment, Pharma & Healthcare
Sodium Fluoride (CAS 7681-49-4) is an inorganic fluoride salt supplied as a white to off-white powder that strengthens tooth enamel; it is used in dentifrices, drinking water supplies, rodent control baits, metallurgical fluxes and wood preservatives. Produced from hydrofluoric acid.
Typical Properties
| Molecular formula | FNa |
|---|---|
| Molecular weight | 41.99 g/mol |
| Form | powder |
| Color | White to off-white |
| Odor | Odorless |
| Melting point | 993 °C |
| Boiling point | 1704 °C |
| Density | 2.78 g/cm³ |
| Water solubility | 4 g/100 mL (25 °C) |
| Flash point | 1704°C |
| pH | 7.0-10.0 (25°C, 0.5M in H2O) |
| GHS signal word | Danger · Corrosive, Acute toxicity, Irritant / harmful, Health hazard |
| HS code | 28261900 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Sodium Fluoride
Applications
Added to dentifrices for cavity prevention; in water supplies for dental health; baits for rodent control; fluxes in metallurgy; and preservatives in wood.
Safety & Risks
Acute poisoning with cardiac effects; chronic fluorosis on bones. Strict dosing; PPE for dust; monitor intake per EFSA limits.
Packaging
Sealed in 25 kg plastic-lined metal pails with locks. Store in fluoride secure cabinets.