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Cobalt(II) oxalate

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Cobalt(II) oxalate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.011.281Edit this at Wikidata
UNII
  • InChI=1S/C2H2O4.Co/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2 ☒N
    Key: MULYSYXKGICWJF-UHFFFAOYSA-L ☒N
  • InChI=1/C2H2O4.Co/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2
    Key: MULYSYXKGICWJF-NUQVWONBAF
  • C(=O)(C(=O)[O-])[O-].[Co+2]
Properties
CoC2O4
Molar mass146.9522 g/mol
Appearancegray/pink powder
Odorodorless
Density3.01 g/cm3
Melting point250 °C (482 °F; 523 K) (decomposes)
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Chemical compound

Cobalt(II) oxalate is theinorganic compound with theformula of CoC2O4. Like other simple inorganic oxalates, it is acoordination polymer. The oxalateligandsbridge of Co(OH2)2 centres. Each cobalt adoptsoctahedral 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.[2]

Related compounds

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Many cobalt(III) oxalate complexes are known, including [Co(C2O4)3]3- and [Co(C2H4(NH2)2)C2O4)2]−.[3][4]

References

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  1. ^Bacsa, J.; Eve, D.; Dunbar, K. R. (2005). "catena-Poly[[diaquacobalt(II)]-μ-oxalato]".Acta Crystallogr. C.61 (Pt 1):m58 –m60.Bibcode:2005AcCrC..61M..58B.doi:10.1107/S0108270104030409.PMID 15640580.
  2. ^Meng, Qi; Zhang, Yingjie; Dong, Peng (2018)."A combined process for cobalt recovering and cathode material regeneration from spent LiCoO2 batteries: Process optimization and kinetics aspects".Waste Management.71:372–380.doi:10.1016/j.wasman.2017.10.030.
  3. ^Kauffman, George B.; Takahashi, Lloyd T.; Sugisaka, Nobuyuki (1966). "Resolution of the Trioxalatocobaltate(III) Ion".Inorganic Syntheses. Vol. 8. pp. 207–211.doi:10.1002/9780470132395.ch55.ISBN 978-0-470-13167-1.
  4. ^Worrell, J. H.; Kipp, E. B. (1972). "Resolution of the (Ethylenediamine)bis(oxalato)cobaltate(III) Ion".Inorganic Syntheses. Vol. 13. pp. 195–202.doi:10.1002/9780470132449.ch40.ISBN 978-0-470-13172-5.
Cobalt(I)
Cobalt(II)
Cobalt(0,III)
Cobalt(II,III)
Cobalt(III)
Cobalt(III,IV)
Cobalt(IV)
Cobalt(V)
Compounds of theoxalate ion


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