What Industries Use Aluminium Fluoride?

Aluminium fluoride (AlF3) is a chemical compound that is primarily used in the production of aluminium metal. It is also commonly used in other industries, including:

1. Aluminium Smelting Industry: The primary use of aluminium fluoride is in the smelting of aluminium. It is added to the electrolytic bath as a flux, which helps to lower the melting point of the alumina feedstock and improve the electrical conductivity of the molten mixture.

2. Ceramic Industry: Aluminium fluoride is used as a flux in the ceramic industry to lower the melting point of ceramic materials and increase their fluidity during firing. It is also used as a glazing agent in the manufacture of enamelware.

3. Chemical Industry: AlF3 is used as a catalyst in the production of a variety of chemicals, including fluorochemicals, synthetic cryolite, and other fluorine-based compounds.

4. Glass Industry: Aluminium fluoride is used as a refining agent in the glass industry, helping to remove impurities and improve the clarity and strength of glass products.

5. Welding Industry: In welding applications, AlF3 is used as a flux to help remove oxides from the surface of metals, allowing for better adhesion of the welding material.

6. Pharmaceutical Industry: Aluminium fluoride is used in some pharmaceutical preparations as a source of fluoride ions, which are important for maintaining dental health.

Overall, the versatile properties of aluminium fluoride make it an important component in many industrial processes, ranging from metallurgy to ceramics, glass and chemicals.