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Xenic acid information


Xenic acid
Structural formula
Structural formula
Ball-and-stick model of xenic acid
Ball-and-stick model of xenic acid
Identifiers
3D model (JSmol)
  • Interactive image
ChemSpider
  • 10466143 checkY
PubChem CID
  • 23422578
CompTox Dashboard (EPA)
  • DTXSID701027094 Edit this at Wikidata
InChI
  • InChI=1S/H2O4Xe/c1-5(2,3)4/h1-2H ☒N
    Key: HRLLZBGOCZURJC-UHFFFAOYSA-N ☒N
  • InChI=1/H2O4Xe/c1-5(2,3)4/h1-2H
    Key: HRLLZBGOCZURJC-UHFFFAOYAW
SMILES
  • O[Xe](O)(=O)=O
Properties
Chemical formula
H2XeO4
Molar mass 197.31 g/mol
Acidity (pKa) ≈10[1]
Related compounds
Related compounds
Perxenic acid
Xenon trioxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Xenic acid is a proposed noble gas compound with the chemical formula H2XeO4 or XeO2(OH)2. It has not been isolated, and the published characterization data are ambiguous.[2]

Salts of xenic acid are called xenates, containing the HXeO
4
anion, such as monosodium xenate. They tend to disproportionate into xenon gas and perxenates:[3]

2 HXeO
4
+ 2 OH
XeO4−
6
+ Xe + O
2
+ 2 H
2
O

The energy given off is sufficient to form ozone from diatomic oxygen:

3 O
2
(g) → 2 O
3
(g)

Salts containing the deprotonated anion XeO2−
4
are presently unknown.[3]

  1. ^ Perrin, D. D., ed. (1982) [1969]. Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution. IUPAC Chemical Data (2nd ed.). Oxford: Pergamon (published 1984). Entry 262. ISBN 0-08-029214-3. LCCN 82-16524.
  2. ^ Claassen, Howard H.; Knapp, Geraldine. (1964). "Raman Spectrum of Xenic Acid". Journal of the American Chemical Society. 86 (12): 2341–2342. doi:10.1021/ja01066a008.
  3. ^ a b Egon Wiberg; Nils Wiberg; Arnold Frederick Holleman (2001). Inorganic chemistry. Academic Press. p. 399. ISBN 0-12-352651-5.

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