Silver oxalate

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]

Silver oxalate

Names
IUPAC name Silver(I) ethanedioate
Other names Silver Ethanedioate, Silver Salt Argentous oxalate Silver(I) oxalate
Identifiers
CAS Number	533-51-7 Y
3D model (JSmol)	Interactive image
ChemSpider	56153 Y
ECHA InfoCard	100.007.791
EC Number	208-568-3
PubChem CID	62364
RTECS number	RO2900000
UNII	NE0L2ZGZ13 Y
CompTox Dashboard (EPA)	DTXSID90201448
InChI InChI=1S/C2H2O4.2Ag/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 Y Key: XNGYKPINNDWGGF-UHFFFAOYSA-L Y 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
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 YN ?) Infobox references

Production

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

• Dioxane tetraketone