Silver oxalate

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Silver oxalate
Names
IUPAC name
Silver(I) ethanedioate
Other names
Silver Ethanedioate, Silver Salt
Argentous oxalate
Silver(I) oxalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.007.791 Edit this at Wikidata
EC Number
  • 208-568-3
RTECS number
  • RO2900000
UNII
  • 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
  • [Ag+].[Ag+].[O-]C(=O)C([O-])=O
Properties
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
3.270*10−3 g/100mL
5.4×10−12[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Harmful if swallowed
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).
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Silver oxalate (Ag
2C
2O
4) is a silver salt of oxalic acid 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.[2] It is also a precursor to the production of silver nanoparticles. It is explosive upon heating around 140 degrees Celsius, shock or friction.[3] It is sensitive to light, decomposing to metallic silver and carbon dioxide.[4]

Production

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Silver oxalate is produced by the reaction between silver nitrate and oxalic acid, or from combining solutions of silver nitrate and sodium oxalate.[4]

See also

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References

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  1. ^ John Rumble (June 18, 2018). CRC Handbook of Chemistry and Physics (99 ed.). CRC Press. pp. 5–189. ISBN 978-1138561632.
  2. ^ Silver Oxalate at American Elements
  3. ^ Silver Oxalate MSDS sheet Archived 2013-12-12 at the Wayback Machine at mpbio
  4. ^ 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
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