| Customization: | Available |
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| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, also recognized in the scientific community as sodium hexafluoroaluminate or sodium aluminum fluoride, boasts the molecular formula Na3AlF6. This compound presents itself as a white, fine crystal without any discernible odor. Its solubility surpasses that of natural cryolite, characterized by a specific gravity of 3 and a hardness rating between 2 and 3. Melting at a substantial 1009 degrees Celsius, cryolite is prone to absorbing moisture, making it slightly hygroscopic. Its diverse applications range from serving as a flux in aluminum electrolysis to being an invaluable wear-resistant filler in rubber and grinding wheels. Additionally, cryolite functions as an enamel whitening agent, a sunscreen for glass, a metal flux, and an agricultural insecticide. The renowned Hall-Héroult process utilizes a cryolite-based fluoride melt as a solvent to derive metallic aluminum. To this day, cryolite remains unmatched as no alternative compound has replicated its exclusive properties and versatility.
| Model | Chemical composition( mass fraction)/% |
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| F | AI | Na | SiO2 | Fe2O3 | SO4²- | CaO | P2O5 | Hygroscopic pic Moisture |
Ignition Loss (mass fraction) |
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| ≥ | ≤ | ||||||||||
| 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 a flux in aluminum electrolysis processes to enhance efficiency and performance.
2. Acts as a superior wear-resistant additive in grinding products, significantly boosting the durability, cutting power, and cutting efficiency of grinding wheels. This not only extends the lifespan of the grinding tools but also prolongs their storage capabilities.
3. Serves as a flux for ferroalloy production and in the boiling steel process, streamlining operations and improving results.
4. Used as a flux in non-ferrous metal processing, aiding in the refinement and purification of metals.
5. Functions as a casting deoxidizer, ensuring higher quality and stability in casting processes.
6. Integral in creating glass anti-reflective coatings, providing enhanced transparency and reduced glare.
7. Utilized as an emulsifier in the enamel industry to achieve superior texture and finish.
8. Acts as an opalizer in glass production, imparting a lustrous and iridescent quality to glass products.
9. Employed as a flux in the production of welding consumables, ensuring smoother and more efficient welding processes.
10. Used as a filler in the ceramic industry to enhance the quality and durability of ceramic products.
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