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Holmium(III) oxalate

From Wikipedia, the free encyclopedia
Holmium(III) oxalate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 221-886-7
  • InChI=1S/3C2H2O4.2Ho/c3*3-1(4)2(5)6;;/h3*(H,3,4)(H,5,6);;/q;;;2*+3/p-6
    Key: DYYFBWLZDJSPGO-UHFFFAOYSA-H
  • dihydrate: InChI=1S/3C2H2O4.2Ho.2H2O/c3*3-1(4)2(5)6;;;;/h3*(H,3,4)(H,5,6);;;2*1H2/q;;;2*+3;;/p-6
    Key: MIBITVHERFMSTH-UHFFFAOYSA-H
  • decahydrate: InChI=1S/3C2H2O4.2Ho.10H2O/c3*3-1(4)2(5)6;;;;;;;;;;;;/h3*(H,3,4)(H,5,6);;;10*1H2/q;;;2*+3;;;;;;;;;;/p-6
    Key: OKKLEXNPKBZYQY-UHFFFAOYSA-H
  • [Ho+3].[Ho+3].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-]
  • dihydrate: [Ho+3].[Ho+3].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].O.O
  • decahydrate: [Ho+3].[Ho+3].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].[O-]C(=O)C(=O)[O-].O.O.O.O.O.O.O.O.O.O
Properties
Ho2(C2O4)3
Appearanceyellow crystals (heptahydrate)
Related compounds
Othercations
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Holmium(III) oxalate is theoxalate salt ofholmium, with the chemical formula Ho2(C2O4)3. It exists in anhydrous and hydrated forms.

Properties

[edit]

Holmium(III) oxalate decahydrate decomposes in heat to obtain the dihydrate, which is further heated to obtain the anhydrous form, and finallyholmium(III) oxide is obtained.[1] It reacts withhydrochloric acid to obtain H[Ho(C2O4)2]·6H2O.[2]

References

[edit]
  1. ^Wendlandt, W. W. (1959). "Thermal Decomposition of Rare Earth Metal Oxalates".Analytical Chemistry.31 (3):408–410.doi:10.1021/ac60147a024.ISSN 0003-2700.
  2. ^Moebius, R.; Matthes, F. (1964). "The exchange of oxalate ions for chloride ions of the oxalate hydrates of the rare earths and yttrium".Zeitschrift für Chemie.4 (6):234–235.
Compounds of theoxalate ion
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