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Identifiers | |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.011.281 ![]() |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
CoC2O4 | |
Molar mass | 146.9522 g/mol |
Appearance | gray/pink powder |
Odor | odorless |
Density | 3.01 g/cm3 |
Melting point | 250 °C (482 °F; 523 K) (decomposes) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Cobalt(II) oxalate is the inorganic compound with the formula of CoC2O4. Like other simple inorganic oxalates, it is a coordination polymer. The oxalate ligands bridge of Co(OH2)2 centres. Each cobalt adopts octahedral coordination geometry.[1]
It is used in the preparation of cobalt catalysts, and cobalt metal powder for powder-metallurgical applications. It is made in process of recycling lithium-ion batteries, where the cobalt is obtained from cathode material (LiCoO2) by leaching with sulfuric acid and then precipitated with ammonium oxalate.[citation needed]
Many cobalt(III) oxalate complexes are known, including [Co(C2O4)3]3- and [Co(C2H4(NH2)2)C2O4)2]−.[2] [3]
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Cobalt(I) |
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Cobalt(II) |
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Cobalt(0, III) |
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Cobalt(II, III) |
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Cobalt(III) |
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Cobalt(III,IV) |
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Cobalt(IV) |
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Cobalt(V) |
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Compounds of the oxalate ion
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