Holmium(III) oxalate

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Holmium(III) oxalate
Identifiers
3D model (
JSmol
)
  • 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
Appearance yellow crystals (heptahydrate)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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

Properties

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

References

  1. ISSN 0003-2700
    .
  2. ^ Moebius, R.; Matthes, F. The exchange of oxalate ions for chloride ions of the oxalate hydrates of the rare earths and yttrium. Zeitschrift fuer Chemie, 1964. 4 (6): 234-235. ISSN: 0044-2402.
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