Silver oxalate

Silver oxalate
Names
IUPAC name
Silver(I) ethanedioate
Other names
Silver Ethanedioate, Silver Salt
Argentous oxalate
Silver(I) oxalate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.791
EC Number
  • 208-568-3
PubChem CID
RTECS number
  • RO2900000
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/C2H2O4.2Ag/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 checkY
    Key: XNGYKPINNDWGGF-UHFFFAOYSA-L checkY
  • InChI=1/C2H2O4.2Ag/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2
    Key: XNGYKPINNDWGGF-NUQVWONBAW
SMILES
  • [Ag+].[Ag+].[O-]C(=O)C([O-])=O
Properties
Chemical formula
 Ag
2C
2O
4
Molar mass 303.755 g/mol
Appearance white powder
Density 5.03 g/cm3
Melting point 961.9 °C (1,763.4 °F; 1,235.0 K) (decomposes)
Boiling point 2,212 °C (4,014 °F; 2,485 K) at 1013.25 hPa
Solubility in water
 3.270*10−3 g/100mL
Solubility product (Ksp)
5.4×10−12[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Harmful if swallowed
GHS labelling:[2]
Pictograms
 GHS01: ExplosiveGHS07: Exclamation markGHS09: Environmental hazard
Signal word
 Danger
Hazard statements
 H201, H302, H312, H410
Precautionary statements
 P210, P230, P240, P250, P264, P270, P273, P280, P301+P317, P302+P352, P317, P321, P330, P362+P364, P370+P380, P372, P373, P391, P401, P501
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Silver oxalate is a silver salt of oxalic acid with the chemical formula Ag
2C
2O
4. It is sensitive to light, decomposing to metallic silver and carbon dioxide.[3]

Production

Silver oxalate is produced by the reaction between silver nitrate and oxalic acid, or from combining solutions of silver nitrate and sodium oxalate.[3]

Uses

It is commonly employed in experimental petrology to add carbon dioxide (CO
2) to experiments as it will break down to silver (Ag) and carbon dioxide under geologic conditions.[4]

It is also a precursor to the production of silver nanoparticles.

Safety

It is explosive upon heating around 140 °C (284 °F) and the dry material may explode when ground.[5]

See also

  • Dioxane tetraketone

References

  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–189. ISBN 978-1138561632.
  2. ^ PubChem. "Silver oxalate". pubchem.ncbi.nlm.nih.gov. Retrieved 2026-02-26.
  3. ^ a b E. H. E. Pietsch, A. Kotowski et al. (1975), Gmelin Handbuch der Anorganischen Chemie, Silber Teil B5, 8th edition, p. 148-149, 161
  4. ^ Silver Oxalate at American Elements
  5. ^ Silver Oxalate MSDS sheet Archived 2013-12-12 at the Wayback Machine at mpbio
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