Linked from
The 9 pages that link to Iron(III), each with the reason it gives.
MaghemiteRelated: Maghemite contains iron entirely in this oxidation state.
Potassium ferricyanideRelated: Iron has this oxidation state in the ferricyanide ion.
Iron(III) citrateRelated: Ferric ions are the metal centers coordinated by citrate.
Ammonium ferric citrateRelated: It is the iron oxidation state present in the complex.
Ammonium iron(II) sulfateRelated: It is the product when the salt’s iron(II) ions lose an electron.