Cryolite
SIAL/01713 - synthetic, ≥97.0% (from F)
Synonym: Kryolith; Sodium hexafluoroaluminate
CAS Number: 15096-52-3
Empirical Formula (Hill Notation): AlF6Na3
Molecular Weight: 209.94
MDL Number: MFCD00003507
Linear Formula: Na3AlF6
Product Type: Chemical
| assay | ≥97.0% (from F) |
| cation traces | Fe: ≤500 mg/kg |
| form | powder |
| impurities | ≤0.5% silicic acid (as SiO2) |
| InChI | 1S/Al.6FH.3Na/h;6*1H;;;/q |
| InChI key | REHXRBDMVPYGJX-UHFFFAOYSA |
| loss | ≤0.5% loss on drying, 105 °C |
| quality | synthetic |
| Quality Level | 100  |
| reaction suitability | core: aluminum |
| reagent type: catalyst | |
| SMILES string | [Na+].[Na+].[Na+].F[Al-3] |
| storage temp. | 2-30°C |
| Application: | Cryolite is commonly used as an electrolyte for aluminum electrolysis. Alumina is dissolved in molten cryolite is used to dissolve alumina during aluminium processing. |
| Symbol |    GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H332 - H372 - H411 |
| Precautionary statements | P273 - P304 + P340 + P312 - P314 |
| Hazard Codes | T,N |
| Risk Statements | 20-48/23/25-51/53 |
| Safety Statements | 22-37-45-61 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥97.0% (from F) |
| Storage Temp. | 2-30°C |
| UNSPSC | 12352300 |