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Peroxynitric acid

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Peroxynitric acid

Names

Preferred IUPAC name

Hydroxy nitrate

Systematic IUPAC name

Hydroxy nitrate^[1]^[2]^[3]

Identifiers

CAS Number

26404-66-0^N

3D model (JSmol)

Interactive image

ChemSpider

58833^Y

PubChem CID

65357

CompTox Dashboard (EPA)

DTXSID201030501

InChI

Key: UUZZMWZGAZGXSF-UHFFFAOYSA-N^Y[Pubchem]

SMILES

[N+](=O)([O-])OO

Properties

HNO₄

79.01224 g/mol

Related compounds

Peroxynitrous acid

Peroxynitrate

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Peroxynitric acidorperoxonitric acid is a chemical compound with the formula HNO
₄. It is an oxyacid of nitrogen, after peroxynitrous acid.

Preparation[edit]

Peroxynitrate, the conjugate base of peroxynitric acid, is formed rapidly during decomposition of peroxynitrite in neutral conditions.^[4]

Atmospheric chemistry[edit]

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[edit]

^ "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

v t e Nitrogen species
Hydrides	NH₃ NH₄⁺ NH₂⁻ N³⁻ NH₂OH N₂H₄ HN₃ N₃⁻ NH₅ (?)
Organic	NR₃ >C=NR -CONR₂ -CN HCN CN⁻ (CN)₂ H₂NCN HOCN HNCO HNCS CH₂N₂ -NO -NO₂
Oxides	NO / (NO)₂ N₂O₃ HNO₂ / NO⁻ ₂ / NO⁺ NO₂ / (NO₂)₂ N₂O₅ HNO₃ / NO⁻ ₃ / NO⁺ ₂ NO₃ HNO / (HON)₂ / N₂O²⁻ ₂ / N₂O H₂NNO₂ HO₂NO / ONOO⁻ HO₂NO₂ / O₂NOO⁻ NO³⁻ ₄ H₄N₂O₄ / N₂O²⁻ ₃
Halides	NF NF₂ NF₃ NF₅ (?) NCl₃ NBr₃ NI₃ FN₃ ClN₃ BrN₃ IN₃ NH₂F N₂F₂ NH₂Cl NHF₂ NHCl₂ NHBr₂ NHI₂
Oxidation states	−3, −2, −1, 0, +1, +2, +3, +4, +5 (a strongly acidic oxide)

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