Ferric ammonium oxalate

Ferric ammonium oxalate (ammonium ferrioxalate, ammonium tris(oxalato)ferrate) is the ammonium salt of the anionic trisoxalato coordination complex of iron(III). It is a precursor to iron oxides, diverse coordination polymers, and Prussian Blue.^[1][2] The latter behavior is relevant to the manufacture of blueprint paper. Ferric ammonium oxalate has also been used in the synthesis of superconducting salts with bis(ethylene)dithiotetrathiafulvalene (BEDT-TTF), see Organic superconductor.^[3]

Ferric ammonium oxalate

Identifiers
CAS Number	14221-47-7 13268-42-3 triammonium ferric trioxalate trihydrate
3D model (JSmol)	Interactive image
ChemSpider	24761
ECHA InfoCard	100.034.612
EC Number	238-090-0
PubChem CID	26580
UNII	9437980SQM
UN number	3077
CompTox Dashboard (EPA)	DTXSID80890522
InChI InChI=1S/3C2H2O4.Fe.3H3N/c3*3-1(4)2(5)6;;;;/h3*(H,3,4)(H,5,6);;3*1H3/q;;;+3;;;/p-3 Key: UEUDBBQFZIMOQJ-UHFFFAOYSA-K
SMILES C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].C(=O)(C(=O)[O-])[O-].[NH4+].[NH4+].[NH4+].[Fe+3]
Properties
Chemical formula	C6H12FeN3O12
Molar mass	374.016 g·mol−1
Appearance	Green solid
Solubility in water	Soluble
Solubility in Ethanol	Insoluble
Hazards
GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H302, H312, H315, H319, H332, H335
Precautionary statements	P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)	2 1 0
Safety data sheet (SDS)	External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

See also

• Potassium ferrioxalate