| Customization: | Available |
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| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, scientifically recognized as sodium hexafluoroaluminate or sodium aluminum fluoride, possesses an impressive molecular formula of Na3AlF6. This striking white fine crystal, characterized by its odorless nature, boasts a solubility that surpasses that of natural cryolite. Possessing a specific gravity of 3 and a hardness of 2-3, it melts at a notable 1009 degrees Celsius and exhibits a propensity to absorb moisture, making it slightly hygroscopic. Cryolite is indispensable as a flux in aluminum electrolysis, a robust wear-resistant filler in rubber and grinding wheels, an enamel whitening agent, an effective glass sunscreen, a reliable metal flux, and even serves as an insecticide for crops. The Hall-Heroult process uniquely utilizes a cryolite-based fluoride melt as a solvent to produce metallic aluminum, a testament to its irreplaceable properties. Despite extensive research, no alternative compound has been found to substitute cryolite, underscoring its unique and essential characteristics in a variety of applications.
| 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. Predominantly serves as a flux in the aluminum electrolysis process, optimizing efficiency and quality.
2. Acts as a robust wear-resistant additive in grinding products, significantly boosting the wear resistance, cutting prowess, and cutting force of grinding wheels. This also extends the grinding wheels' longevity and storage capabilities.
3. Utilized as a reliable flux for ferroalloy production and boiling steel operations, enhancing performance and outcome.
4. Essential for non-ferrous metal processing as a superior flux, ensuring peak performance.
5. Functions as an effective deoxidizer in casting processes, improving quality and reducing impurities.
6. Applied in the production of glass as a highly effective anti-reflective coating, enhancing visual clarity and functionality.
7. Utilized as a premium emulsifier in enamel applications, ensuring a smooth, consistent finish.
8. Serves as an opalizer for glass, providing a sophisticated, lustrous finish that enhances aesthetic appeal.
9. Integral as a flux in the formulation of welding consumables, ensuring superior bond strength and efficiency.
10. Used as a filler in the ceramic industry, contributing to the enhanced durability and quality of ceramic products.
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