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).
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	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]

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References

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.