Preparation, Occurrence, Reactions
Anhydrous iron(III) fluoride is prepared by treating virtually any anhydrous iron compound with fluorine. More practically and like most metal fluorides, it is prepared by treating the corresponding chloride with hydrogen fluoride:
- FeCl3 + 3 HF → FeF3 + 3 HCl
It also forms as a passivating film upon contact between iron (and steel) and hydrogen fluoride. The hydrates crystallize from aqueous hydrofluoric acid.
The material is a fluoride acceptor. With xenon hexafluoride it forms XeF5].
Read more about this topic: Iron(III) Fluoride
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