草酸铁铵

Description

Ammonium ferric oxalate · CAS 14221-47-7 · C6FeO12.3H4N. UNII 9437980SQM.

Identification

CAS Registry Number	14221-47-7
PubChem CID	26580
Molecular formula	C6FeO12.3H4N
IUPAC name	triazanium;iron(3+);oxalate
UNII (FDA)	9437980SQM

Computed Descriptors

Molecular Weight	374.02
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	12
Rotatable Bond Count	0
Exact Mass	373.977033
Monoisotopic Mass	373.977033
Topological Polar Surface Area	244
Heavy Atom Count	22
Formal Charge	0
Complexity	60.5

Physical description & handling notes

• Ferric ammonium oxalate appears as a green crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Used in making blueprints.
• Hydrate: Bright green solid, soluble in water; Light sensitive; [Merck Index] Green solid; [CAMEO]
• 1.78 at 68 °F (USCG, 1999) - Denser than water; will sink
• Decomposes at 160-170 °C; loses 3 H2O by 100 °C; bright-green, monoclinic, prismatic crystals; Density= 1.78 at 17 °C. Very soluble in water; practically insoluble in alcohol. /Hydrate/
• Affected by light /Hydrate/
• When heated to decomposition it emits toxic fumes of /ammonia/.

GHS Hazard Classification

Reported hazard statements	H302 (100%), H312 (100%), H315 (33.3%), H319 (33.3%), H332 (33.3%), H335 (33.3%)

Documented Uses

• Used in photography, blueprints, and aluminum pigments; [Merck Index]
• Aluminum Producing [Category: Industry]
• Photographic Processing [Category: Other]
• In photography, blueprints; coloring of aluminum and aluminum alloys
• Interaction of ammonium binoxalate and ferric hydroxide.
• Ethanedioic acid, ammonium iron(3+) salt (3:3:1): ACTIVE

Synonyms

FERRIC AMMONIUM OXALATE; Ammonium ferric oxalate; Ammonium ferrioxalate; 14221-47-7; Triammonium trioxalatoferrate; triazanium;iron(3+);oxalate; Ammonium trioxalatoferrate(III); 2944-67-4; Triammonium tris(oxalato)ferrate(3-); Triammonium trioxalatoferrate(3-); Triammonium iron(3+) trioxalate; ammonium iron(iii) oxalate; 9437980SQM; Ethanedioic acid, ammonium iron(3+) salt (3:3:1); Ammonium tris(oxalato)ferrate(III); HSDB 947

Frequently Asked Questions

What are the CAS number and molecular formula of Ammonium ferric oxalate?

CAS 14221-47-7; molecular formula C6FeO12.3H4N; molecular weight — g/mol.

What other names is Ammonium ferric oxalate known by?

FERRIC AMMONIUM OXALATE, Ammonium ferric oxalate, Ammonium ferrioxalate, 14221-47-7, Triammonium trioxalatoferrate, triazanium;iron(3+);oxalate.

Is Ammonium ferric oxalate classified as hazardous?

Hazard statements reported: H302, H312, H315, H319, H332.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.