{{chembox | Verifiedfields = changed | Watchedfields = changed | verifiedrevid = 464391274 | Name = Silver oxalate | ImageFile = Silver oxalate resonance.svg | OtherNames = Silver Ethanedioate, Silver Salt<br/> Argentous oxalate <br> Silver(I) oxalate | IUPACName = Silver(I) ethanedioate | SystematicName = | Section1 = {{Chembox Identifiers | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 56153 | PubChem = 62364 | InChI = 1/C2H2O4.2Ag/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 | InChIKey = XNGYKPINNDWGGF-NUQVWONBAW | SMILES = [Ag+].[Ag+].[O-]C(=O)C([O-])=O | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C2H2O4.2Ag/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);;/q;2*+1/p-2 | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = XNGYKPINNDWGGF-UHFFFAOYSA-L | CASNo_Ref = {{cascite|correct|CAS}} | CASNo = 533-51-7 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = NE0L2ZGZ13 | EINECS = 208-568-3 | RTECS = RO2900000 }} | Section2 = {{Chembox Properties | Formula = {{chem|Ag|2|C|2|O|4}} | MolarMass = 303.755 g/mol | Appearance = white powder | Density = 5.03 g/cm<sup>3</sup> | Solubility = 3.270*10<sup>−3</sup> g/100mL | SolubilityProduct = 5.4{{e|−12}}<ref name="crc">{{cite book |author1=John Rumble |title=CRC Handbook of Chemistry and Physics |date=June 18, 2018 |publisher=CRC Press |isbn=978-1138561632 |pages=5–189|edition=99 |language=English}}</ref> | MeltingPtC = 961.9 | MeltingPt_notes = (decomposes) | BoilingPtC = 2212 | BoilingPt_notes = at 1013.25 hPa }} | Section3 = {{Chembox Hazards | ExternalSDS = [http://images.mpbio.com/docs/msds/aust/en/218406-EN-AUST.pdf External MSDS] | MainHazards = Harmful if swallowed | GHS_ref = <ref>{{Cite web |last=PubChem |title=Silver oxalate |url=https://pubchem.ncbi.nlm.nih.gov/compound/62364 |access-date=2026-02-26 |website=pubchem.ncbi.nlm.nih.gov |language=en}}</ref> | GHSPictograms = {{GHS01}}{{GHS07}}{{GHS09}} | GHSSignalWord = Danger | HPhrases = {{H-phrases|H201|H302|H312|H410}} | PPhrases = {{P-phrases|P210|P230|P240|P250|P264|P270|P273|P280|P301+P317|P302+P352|P317|P321|P330|P362+P364|P370+P380|P372|P373|P391|P401|P501}} }} | Section4 = | Section5 = | Section6 = }}
'''Silver oxalate''' is a silver salt of oxalic acid with the chemical formula {{chem|Ag|2|C|2|O|4}}. It is sensitive to light, decomposing to metallic silver and carbon dioxide.<ref name="Gmelin_handbook" />
==Production== Silver oxalate is produced by the reaction between silver nitrate and oxalic acid, or from combining solutions of silver nitrate and sodium oxalate.<ref name="Gmelin_handbook">E. H. E. Pietsch, A. Kotowski et al. (1975), Gmelin Handbuch der Anorganischen Chemie, Silber Teil B5, 8th edition, p. 148-149, 161</ref>
==Uses== It is commonly employed in experimental petrology to add carbon dioxide ({{chem|CO|2}}) to experiments as it will break down to silver (Ag) and carbon dioxide under geologic conditions.<ref>[http://www.americanelements.com/agoxl.html Silver Oxalate] at American Elements</ref>{{Clarify|reason=this is a vague term, what specific conditions?|date=February 2026}}{{Better source needed|date=February 2026}}
It is also a precursor to the production of silver nanoparticles.{{Citation needed|date=February 2026}}
==Safety== It is explosive upon heating around {{Convert|140|C|F}} and the dry material may explode when ground.<ref>[http://images.mpbio.com/docs/msds/aust/en/218406-EN-AUST.pdf Silver Oxalate MSDS sheet] {{Webarchive|url=https://web.archive.org/web/20131212103333/http://images.mpbio.com/docs/msds/aust/en/218406-EN-AUST.pdf |date=2013-12-12 }} at mpbio</ref>
==See also== * Dioxane tetraketone
==References== {{reflist}}
==External links== * [http://www.powerlabs.org/chemlabs/silver_oxalate.htm Synthesizing Silver Oxalate] * [http://www.chemthes.com/entity_datapage.php?id=1420 Chemical Entity Data Page]
{{Silver compounds}} {{Oxalates}}
Category:Silver compounds Category:Oxalates