Ammonium oxalate

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Ammonium oxalate
Ammonium oxalate.svg
CAS number 1113-38-8 YesY, 6009-70-7 (monohydrate) YesY
PubChem 13531065
ChemSpider 13577 YesY
Jmol-3D images Image 1
Molecular formula C2H8N2O4
Molar mass 124.10 g mol−1
Appearance White solid
Except where noted otherwise, 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 (sometimes 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 constituent of some types of kidney stone.[1][2] Found also in guano.


  1. ^ The International Pharmacopoeia, p.1292, Volume 1, World Health Organization, 2006 ISBN 92-4-156301-X.
  2. ^ N G Coley, "The collateral sciences in the work of Golding Bird (1814-1854)", Medical History, iss.4, vol.13, October 1969, pp.372.