Xenic acid
Chemical compound / From Wikipedia, the free encyclopedia
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]
Quick Facts Identifiers, Properties ...
| |||
Identifiers | |||
---|---|---|---|
3D model (JSmol) |
|||
ChemSpider |
| ||
PubChem CID |
|||
| |||
| |||
Properties | |||
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).
|
Close
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
2O
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]