Sodium Bifluoride
Sodium Hydrogen Fluoride
- CAS
- 1333-83-1
- EC
- 215-608-3
- Sectors
- Lubricants & Metalworking, Agriculture
Sodium Bifluoride (CAS 1333-83-1) is sodium hydrogen difluoride, a white crystalline solid supplied as pellets that dissolves in water to release hydrofluoric acid for acidic fluoride applications, and it is used in metal cleaning, aluminum etching, glass frosting and pesticide formulations. Produced from sodium fluoride and HF, it follows industrial standards from industry fluorides and ChemSpider structures.
Typical Properties
| Molecular formula | F2H.Na |
|---|---|
| Molecular weight | 61.99 g/mol |
| Appearance | White, crystalline powder.Sol- uble in water; decomposes on heating. |
| Form | pellets |
| Color | white hexagonal, hexane crystals, crystalline |
| Melting point | >68 °C (dec.) |
| Boiling point | 270°C[at 101 325 Pa] |
| Density | 2.08 g/cm³ |
| Water solubility | g/100g solution in H2O: 3.7 (20°C), 16.4 (80°C) [KIR78] |
| GHS signal word | Danger · Corrosive, Acute toxicity, Health hazard |
| HS code | 2826199090 |
| 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 Bifluoride
Applications
Used in metal cleaning for aluminum etching; in laundry sours for pH lowering; in glass frosting pastes; in electroplating for flux; and in pesticides as active ingredients.
Safety & Risks
Highly toxic causing fluoride burns and hypocalcemia; inhalation leads to pulmonary edema. Provide calcium gluconate antidote; full PPE mandatory per GHS corrosive classifications.
Packaging
Sealed in 25 kg plastic pails with hazard labels for safe transit. Secure in bifluoride isolated cabinets with spill kits.