Synonyms: Ammoniumtris(oxalato)ferrate(III) (6CI,7CI);Ferrate(3-), tris(oxalato)-, triammonium(8CI);Ferrate(3-), tris[ethanedioato(2-)-O,O']-, triammonium, (OC-6-11)-;Ferrate(3-), tris[ethanedioato(2-)-kO1,kO2]-, triammonium, (OC-6-11)-(9CI);Ammonium ferric oxalate;Ammonium ferrioxalate;Triammonium iron trioxalate;Triammonium trioxalatoferrate;Triammoniumtrioxalatoferrate(3-);Triammonium tris(oxalato)ferrate(3-);Tris(ammonium)trioxalatoferrate(3-);