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 (Jmol)	Interactive image
ChEBI	CHEBI:91241
ChemSpider	13577
ECHA InfoCard	100.012.912
PubChem	14213
InChI InChI=1S/C2H2O4.2H3N/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H3 Key: VBIXEXWLHSRNKB-UHFFFAOYSA-N InChI=1S/C2H2O4.2H3N/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H3
SMILES [O-]C(=O)C([O-])=O.[NH4+].[NH4+]
Properties
Chemical formula	C2H8N2O4
Molar mass	124.10 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 salt under standard conditions and is odorless and non-volatile. It is a strong dicarboxylic acid and occurs in many plants and vegetables. It is produced in the body 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.

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.

References

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.