| Customization: | Available |
|---|---|
| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, also identified as sodium hexafluoroaluminate or sodium aluminum fluoride, has a molecular formula of Na3AlF6. It appears as a white fine crystal that is odorless and exhibits a greater solubility than its natural counterpart. With a specific gravity of 3 and a hardness rating of 2~3, its melting point reaches an impressive 1009 degrees Celsius. Notably, cryolite is hygroscopic, meaning it easily absorbs moisture. Versatile in its applications, cryolite is predominantly utilized as a flux in aluminum electrolysis, a robust filler in rubber and grinding wheels, an enamel whitening agent, a glass sunscreen, a metal flux, and even as an agricultural insecticide. The renowned Hall-Heroult process leverages cryolite-based fluoride melts as a solvent to refine metallic aluminum, with no alternative compound matching its unique and irreplaceable characteristics.
| Model | Chemical composition( mass fraction)/% |
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|||||||||
| F | AI | Na | SiO2 | Fe2O3 | SO4²- | CaO | P2O5 | Hygroscopic pic Moisture |
Ignition Loss (Mass Fraction) |
||
| ≥ | ≤ | ||||||||||
| FH-1 | 52 | 12 | 33 | 0.25 | 0.08 | 0.6 | 0.15 | 0.02 | 1.5 | 2.0 | |
| FH-2 | 52 | 12 | 33 | 0.36 | 0.08 | 1.0 | 0.20 | 0.03 | 1.3 | 2.5 | |
| FM-1 | 53 | 13 | 32 | 0.25 | 0.05 | 0.6 | 0.20 | 0.02 | 0.7 | 2.0 | |
| FM-2 | 53 | 13 | 32 | 0.36 | 0.08 | 1.0 | 0.60 | 0.03 | 0.7 | 2.5 | |
1. Primarily utilized as an indispensable flux in the aluminum electrolysis process, enhancing overall efficiency.
2. Acts as a robust wear-resistant additive for grinding products, significantly augmenting the wear resistance, cutting effectiveness, and cutting force of grinding wheels, thereby extending their lifespan and storage durability.
3. Serves as a vital flux in the production of ferroalloys and boiling steel, optimizing the metallurgical process.
4. An essential flux for non-ferrous metals, improving melting and refining processes.
5. Functions as an effective casting deoxidizer, enhancing the quality and integrity of metal casts.
6. Utilized in glass anti-reflective coatings, contributing to improved optical clarity and performance.
7. Acts as an emulsifier for enamel, aiding in the uniformity and stability of the coating.
8. Serves as an opalizer in glass manufacturing, imbuing the glass with a distinct opalescent quality.
9. Used as a flux in welding consumables, facilitating better weld quality and consistency.
10. Used as a filler in the ceramic industry, enhancing the material properties and workability of ceramic products.
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