Aluminum fluoride

Aluminum fluoride (CAS 7784-18-1), also sold as aluminum trifluoride, is an inorganic salt used primarily as a flux and electrolyte modifier in aluminum smelting and as a catalyst or catalyst precursor.

Where is Aluminum fluoride used?

• Primary aluminum production: lowers the melting point of alumina-cryolite baths
• Aluminum smelting: added to the Hall-Héroult electrolytic bath to control bath ratio and improve current efficiency
• Plastics and polymer manufacturing: flame retardant additive for wire and cable, construction profiles, and automotive components
• Catalyst or catalyst precursor for fluorination and isomerization in petrochemical and specialty chemical production
• In brewing and fermentation it inhibits enzymatic activity as a preservative.

Commercial specifications

• Anhydrous and trihydrate forms
• Bulk supply for smelter-scale procurement; smaller packaging for catalyst and specialty chemical applications