Peroxynitric acid
Peroxynitric acid or peroxonitric acid is a chemical compound with the formula HNO
4. It is an oxyacid of nitrogen, after peroxynitrous acid.
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| Preferred IUPAC name
Hydroxy nitrate | |||
| Systematic IUPAC name | |||
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| Properties | |||
| HNO4 | |||
| Molar mass | 79.01224 g/mol | ||
| Conjugate base | Peroxynitrate | ||
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation
Peroxynitrate, the conjugate base of peroxynitric acid, is formed rapidly during decomposition of peroxynitrite in neutral conditions.[4]
Atmospheric chemistry
Peroxynitric acid is formed in the atmosphere, although it is unstable, it is important as a reservoir for NO2 through the reversible radical reaction:[5]
- HO
2NO
2 ⇌ HO•
2 + NO•
2
References
- "Peroxynitric Acid - Compound Summary".
- "peroxynitric acid". PubChem. Retrieved 9 December 2012.
- "125239-87-4". ChemIndex. Retrieved 9 December 2012.
- Miyamoto, S; Ronsein, GE; Corrêa, TC; Martinez, GR; Medeiros, MH; Di Mascio, P (2009). "Direct evidence of singlet molecular oxygen generation from peroxynitrate, a decomposition product of peroxynitrite". Dalton Trans (29): 5720–9. doi:10.1039/b905560f. PMID 20449086.
- Finlayson-Pitts, Barbara J.; Pitts, James N. (2000), Chemistry of the Upper and Lower Atmosphere, Elsevier, p. 100, doi:10.1016/b978-012257060-5/50000-9, ISBN 978-0-12-257060-5, retrieved 2020-09-24
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