| Customization: | Available |
|---|---|
| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, known scientifically as sodium hexafluoroaluminate or sodium aluminum fluoride, is a remarkable white fine crystal, identified by its molecular formula Na3AlF6. This odorless compound boasts a larger solubility compared to natural cryolite, a specific gravity of 3, and a hardness rating of 2~3. Its melting point stands impressively at 1009 degrees Celsius. Highly hygroscopic, cryolite is adept at absorbing moisture from the environment. Its multifaceted uses span across industries: a vital flux in aluminum electrolysis, a wear-resistant additive for rubber and grinding wheels, a whitening agent for enamel, a sunscreen component for glass, a metal flux, and even an agricultural insecticide. Central to the Hall-Heroult process, cryolite remains unparalleled as a solvent in the production of aluminum. Its unique combination of properties has yet to be matched by any other compound.
| Model | Chemical composition( mass fraction)/% |
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| F | AI | Na | SiO2 | Fe2O3 | so4²- | CaO | P2O5 | Hygrosco 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 a flux in aluminum electrolysis, ensuring smooth and efficient processing.
2. Acts as a wear-resistant additive in grinding products, significantly enhancing wear resistance, cutting efficiency, and cutting force of the grinding wheels while prolonging their service life and storage capabilities.
3. Serves as a flux for ferroalloy production and boiling steel processes, optimizing performance and results.
4. Essential non-ferrous metal flux, contributing to superior quality and efficiency in metal processing.
5. Functions as a casting deoxidizer, improving the integrity and quality of cast products.
6. Applied for glass anti-reflective coating, enhancing clarity and reducing glare.
7. Utilized as an emulsifier in enamel production, ensuring smooth and consistent textures.
8. Acts as an opalizer for glass, imparting a luxurious opalescent finish and enhancing aesthetic appeal.
9. Deployed as a flux for welding consumables, improving bonding and strength of welded joints.
10. Serves as a filler in the ceramic industry, contributing to product durability and quality.
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