| Customization: | Available |
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| CAS No.: | 15096-52-3 |
| Formula: | Na3alf6 |
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Cryolite, also recognized scientifically as sodium hexafluoroaluminate or sodium aluminum fluoride, boasts the chemical formula Na3AlF6. This remarkable compound appears as a white, odorless fine crystal, showcasing greater solubility than its natural counterpart. With a specific gravity of 3, a hardness ranging from 2 to 3, and a melting point of 1009 degrees Celsius, cryolite is known for its moisture-absorbing properties. Its primary application is as a flux in aluminum electrolysis, offering indispensable value as a wear-resistant filler in rubber and grinding wheels. Additionally, it serves as an enamel whitening agent, a protective glass sunscreen, a metal flux, and an effective insecticide for crops. Cryolite's unique properties are central to the Hall-Heroult method, where a cryolite-based fluoride melt facilitates the production of metallic aluminum. To date, no alternative compound matches the irreplaceable qualities of cryolite, affirming its critical role in various industrial processes.
| 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.It is primarily employed as a flux in the process of aluminum electrolysis, ensuring efficiency and effectiveness in the production environment.
2.Serves as a wear-resistant additive for grinding products, significantly enhancing wear resistance, cutting capabilities, and cutting force of grinding wheels. This results in extended lifespan and prolonged storage of the grinding wheels.
3.Used as a flux for both ferroalloy and boiling steel, contributing to improved processing quality and performance.
4.Utilized as a flux within non-ferrous metal applications, optimizing processing and output.
5.Acts as a casting deoxidizer, playing a crucial role in ensuring the purity and quality of casted materials.
6.Applied in the creation of glass anti-reflective coatings, contributing to superior light management and visual clarity.
7.Functions as an emulsifier for enamel, enhancing texture and consistency in enamel applications.
8.Used as an opalizer for glass, bringing out the exquisite opalescent qualities in glass products.
9.Serves as a flux for welding consumables, improving the welding process and end results.
10.Used as a filler in the ceramic industry, providing structural integrity and enhancing material properties.
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