Hydroperoxyl
| Names | |
|---|---|
| Preferred IUPAC name
Hydroperoxyl | |
| Systematic IUPAC name
Dioxidanyl | |
| Other names
Peroxyl radical, hydrogen superoxide, hydrogen dioxide | |
| Identifiers | |
3D model (JSmol) |
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| ChEBI | |
| ChemSpider | |
| 506 | |
PubChem CID |
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CompTox Dashboard (EPA) |
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| Properties | |
| HO2 | |
| Molar mass | 33.006 g·mol−1 |
| Acidity (pKa) | 4.88 |
| Basicity (pKb) | 9.12 (basicity of superoxide ion) |
| Conjugate base | Superoxide anion |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
The hydroperoxyl radical, also known as the hydrogen superoxide, is the protonated form of superoxide with the chemical formula HO2, also written HOO•. This species plays an important role in the atmosphere and as a reactive oxygen species in cell biology.