Ammonium oxalate

Ammonium oxalate is a chemical compound with the chemical formula [NH4]2C2O4. Its formula is often written as (NH4)2C2O4 or (COONH4)2. It is an ammonium salt of oxalic acid. It consists of ammonium cations ([NH4]+) and oxalate anions (C2O2−4). The structure of ammonium oxalate is ([NH4]+)2[C2O4]2−. Ammonium oxalate sometimes comes as a monohydrate ([NH4]2C2O4·H2O). It is a colorless or white salt under standard conditions and is odorless and non-volatile. It occurs in many plants and vegetables.

Ammonium oxalate
Names
IUPAC name
Ammonium oxalate
Systematic IUPAC name
Ammonium ethanedioate
Other names
Diammonium oxalate
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.012.912
PubChem CID
UNII
  • InChI=1S/C2H2O4.2H3N/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H3 Y
    Key: VBIXEXWLHSRNKB-UHFFFAOYSA-N Y
  • 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
[NH4]2C2O4
Molar mass 124.096 g·mol−1
Appearance Colorless or white crystalline solid
Density 1.5 g/cm3
Melting point 70 C (158 F, 343.15 K)
5.20 g/(100 ml) (25 °C)
Hazards
GHS labelling:
H302, H312, H319
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YN ?)
Infobox references
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