Production and Occurrence
The majority of aluminium fluoride is mainly produced by treating alumina with hexafluorosilicic acid:
- H2SiF6 + Al2O3 → 2 AlF3 + SiO2 + H2O
Alternatively, it is manufactured by thermal decomposition of ammonium hexafluoroaluminate. For small scale laboratory preparations, AlF3 can also be prepared by treating aluminium hydroxide or aluminium metal with HF.
Aluminium fluoride trihydrate is found in nature as the rare mineral rosenbergite.
Read more about this topic: Aluminium Fluoride
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