Artificial Technical Cryolite: An Indispensable Component in Aluminum Production
Artificial technical cryolite is an inorganic compound that plays a vital role in aluminum production. It is produced by the interaction of aluminum fluoride with sodium fluoride or by treating aluminum hydroxide with hydrofluoric acid in the presence of soda.
Properties:
- Chemical Formula: Na₃AlF₆
- Appearance: White crystalline powder
- Density: 2.9–3.0 g/cm³
- Melting Point: 1009°C
- Solubility in Aluminum Oxide: This key property makes cryolite indispensable in electrolytic aluminum production.
- Low Hygroscopicity: It virtually does not absorb water from the air.
- Chemical Stability: Resistant to many chemical substances.
Applications:
- Aluminum Production: Cryolite is used as an electrolyte in electrolytic cells, where aluminum is reduced from aluminum oxide.
- Glass Production: Used as a fluxing agent that lowers the melting point and improves the fluidity of the glass mass.
- Enamel Production: Used as a flux to lower the melting point of enamel mass and improve its adhesion to metals.
- Secondary Metal Processing: Used as a flux in soldering and welding processes.
- Abrasive Materials Production: Used as a binder in abrasive wheels and stones.
Packaging:
- Big bags
- 25 kg bags
Storage:
Store in a dry, closed space away from heat sources and direct sunlight.
Important:
Technical cryolite is a toxic substance. When working with it, proper precautions must be taken: use personal protective equipment (rubber gloves, goggles, respirators), and ensure that the substance does not enter the body.
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