| Customization: | Available |
|---|---|
| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, also renowned as sodium hexafluoroaluminate or sodium aluminum fluoride, showcases its exceptional molecular formula Na3AlF6. This magnificent white fine crystal, free from any odor, boasts a solubility surpassing that of natural cryolite. Its specific gravity is a solid 3, and it possesses a hardness rating between 2 to 3. With a melting point reaching an impressive 1009 degrees Celsius, it is prone to absorbing moisture, which makes it wet. Cryolite finds its principal application as a flux in aluminum electrolysis, and serves as a wear-resistant filler for both rubber and grinding wheels. Additionally, it acts as an enamel whitening agent, a glass sunscreen, a metal flux, and even an insecticide for crops. The illustrious Hall-Heroult method employs a cryolite-based fluoride melt as a solvent to produce metallic aluminum, a testament to its unparalleled utility. To this day, no alternative has been discovered to replace cryolite, primarily due to its unique and vital properties that are essential for these processes.
| 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 superior flux in aluminum electrolysis, enabling high-efficiency metal processing.
2. Acts as an exceptional wear-resistant additive for grinding products. It significantly enhances the wear resistance, cutting capabilities, and cutting force of grinding wheels, effectively extending their service life and storage duration.
3. Serves as a reliable flux for ferroalloy production and boiling steel processes, ensuring high-quality output.
4. Essential non-ferrous metal flux that facilitates smooth and efficient metal refinement.
5. An indispensable casting deoxidizer, promoting superior quality in casting processes.
6. Utilized in glass manufacturing as an anti-reflective coating, lending clarity and enhanced visual appeal.
7. Functions as an effective emulsifier for enamel, ensuring consistent quality and texture.
8. Acts as an opalizer for glass, imbuing it with a distinct and captivating opalescent finish.
9. Vital flux for welding consumables, contributing to seamless and durable welds.
10. Employed as a filler in the ceramic industry, enhancing the quality and durability of ceramic products.
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