number | Chemical composition (mass fraction) /% | Physical properties | |||||||
| F | AL | Na | SiO2 | Fe2O3 | P2O5 | Sulfate | Burn | Density g / m & sup3; | |
| AF-0 | 61.0 | 31.5 | 0.30 | 0.10 | 0.06 | 0.03 | 0.10 | 0.50 | 1.50 |
| AF-1 | 60.0 | 31.0 | 0.40 | 0.30 | 0.10 | 0.04 | 0.60 | 1.00 | 1.30 |
| AF-2 | 60.0 | 29.0 | 2.80 | 0.30 | 0.12 | 0.04 | 1.00 | 5.50 | 0.70 |
| AF-3 | 59.0 | 29.0 | 2.80 | 0.35 | 0.12 | 0.04 | 1.00 | 5.50 | 0.70 |
- Note: AF-0 and AF-1 are anhydrous aluminum fluoride standards AF-2 and AF-3 are wet aluminum fluoride standards
- Mainly used in aluminum smelting to reduce melting point and increase
- Pure aluminum fluoride can be obtained by the action of aluminum trichloride with hydrofluoric acid and ammonia to obtain ammonium hexafluoroaluminate, which can be decomposed by heating.
