Ammonium oxalate

Ammonium oxalate
Names
	IUPAC name Diammonium ethanedioate
	Other names Diammonium oxalate
Identifiers
CAS Number	1113-38-8 ; 6009-70-7 (monohydrate) ;
3D model (JSmol)	Interactive image;
ChEBI	CHEBI:91241 ;
ChemSpider	13577 ;
ECHA InfoCard	100.012.912
PubChem CID	14213;
UNII	0PB8MO5U0H ; L4MP14OB48 (monohydrate) ;
CompTox Dashboard (EPA)	DTXSID50889443 ;
	InChI InChI=1S/C2H2O4.2H3N/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);21H3 Key: VBIXEXWLHSRNKB-UHFFFAOYSA-N ; InChI=1S/C2H2O4.2H3N/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);21H3;
	SMILES [O-]C(=O)C([O-])=O.[NH4+].[NH4+];
Properties
Chemical formula	C2H8N2O4
Molar mass	124.096 g·mol−1
Appearance	White solid
Melting point	70 C (158 F, 343.15 K)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	(what is ?)
	Infobox references

Ammonium oxalate, C₂H₈N₂O₄ – more commonly written as (NH₄)₂C₂O₄ – is an oxalate salt with ammonium (sometimes as a monohydrate). It is a colorless (white) salt under standard conditions and is odorless and non-volatile. It is the ammonium salt of oxalic acid, and occurs in many plants and vegetables.

Vertebrate[]

It is produced in the body of vertebrates by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine.^[1] It is a constituent of some types of kidney stone.^[2]^[3] It is also found in guano.

Mineralogy[]

Oxammite is a natural, mineral form of ammonium oxalate. This mineral is extremely rare.^[4]

Chemistry[]

Ammonium oxalate is used as an analytical reagent and general reducing agent.^[1] It and other oxalates are used as anticoagulants, to preserve blood outside the body.

Earth sciences[]

Acid ammonium oxalate (ammonium oxalate acidified to pH 3 with oxalic acid) is commonly employed in soil chemical analysis to extract iron and aluminium from poorly-crystalline minerals (such as ferrihydrite), iron(II)-bearing minerals (such as magnetite) and organic matter.^[5]^{[page needed]}

References[]

^ ^a ^b National Center for Biotechnology Information. PubChem Compound Database; CID 14213 (accessed 15 November 2016).
^ The International Pharmacopoeia, p.1292, Volume 1, World Health Organization, 2006 ISBN 92-4-156301-X.
^ N G Coley, "The collateral sciences in the work of Golding Bird (1814-1854)", Medical History, iss.4, vol.13, October 1969, pp.372.
^ http://www.mindat.org
^ Rayment, George; Lyons, David (2011). Soil Chemical Methods - Australasia. CSIRO Publishing. ISBN 9780643101364.

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[pubchem-1] National Center for Biotechnology Information. PubChem Compound Database; CID 14213 (accessed 15 November 2016).

[2] The International Pharmacopoeia, p.1292, Volume 1, World Health Organization, 2006 ISBN 92-4-156301-X.

[3] N G Coley, "The collateral sciences in the work of Golding Bird (1814-1854)", Medical History, iss.4, vol.13, October 1969, pp.372.

[4] ttp://www.mindat.org

[5] Rayment, George; Lyons, David (2011). Soil Chemical Methods - Australasia. CSIRO Publishing. ISBN 9780643101364.

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