Peroxonitrous acid

Peroxonitrous acid, HOONO. Isomer of nitric acid (HNO2 plus H2O2). [Pg.279]

HNO4 peroxonitric acid H2S2O4 dithionous acid... [Pg.221]

HOONO peroxonitrous acid H2Se04 selenic acid... [Pg.221]

Peroxonitrous Acid and Its Salts. Peroxonitrous acid [14691-52-2] YLOON014691-52-2 is an isomer of nitric acid, HNO, to which it... [Pg.93]

Peroxonitrous acid can decompose by two pathways isomerization to nitric acid, and dissociation into the hydroxyl radical and nitrogen dioxide. [Pg.93]

The hydroxyl radical is responsible for some of the oxidation products of organic compounds by peroxonitrous acid. [Pg.93]

Peroxonitrite is beHeved to be present in the crystals of nitric acid trihydrate that form in the stratosphere and in Martian soil (see Extraterrestrial materials). Peroxonitrous acid may be present in mammalian blood and other biochemical systems. However, peroxonitric acid, HNO, is not known. Before the chemistry of peroxonitrous acid was understood, these two acids were sometimes confused. [Pg.93]

HOONO Peroxonitrous acid Unstable, isomeric with nitric acid some salts are more stable ... [Pg.459]

HNO4 Peroxonitric acid Unstable, explosive crystals, HOONO2 no solid salts known. (For orthonitrates , N04 , i.e. salts of the unknown orthonitric acid H3NO4, see p. 471 -2)... [Pg.459]

Peroxonitric Acid, HN04 Pure material decomposes. explosively at —30°. Solns in w or acet ac over 70% HNO4 decompose autocatalytically to ex pin R. Schwarz, ZAnorgChem 256, 3(1948)... [Pg.673]

Peroxomonosulfuric acid, 18 404—405 Peroxonitrite ion, 18 402 Peroxonitrous acid/salts, 18 402 Peroxophosphoric acids/salts, 18 402-404 Peroxopolyoxometallates, 18 415-416 Peroxosilicates, 18 402 Peroxosulfuric acids/salts, 18 404-405 Peroxotin compounds, 18 402 Peroxyacetic acid, 1 148 14 66, 67 Peroxyacetyl nitrate (PAN), 1 789, 795 Peroxyacids, 18 462 466... [Pg.685]

Peroxodisulfuric acid, 4482 Peroxomonophosphoric acid, 4506 Peroxomonosulfuric acid, 4481 Peroxonitric acid, 4437... [Pg.331]

Amels, P., Elias, H., Gotz, U., Steingens, U.. and Wannowius, K.J. Kinetic investigation ofthe stability of peroxonitric acid and... [Pg.1624]

Peroxonitrous Acid and Its Salts. Pcroxonitrous acid HOONO, is an isomer of nitric acid. HNOj, to which it rapidly converts. The half-life of peroxonitrous acid at 0 C is 10 s at 27°C, 0.23 s. It has been known since 1904 that the yellow solution made by mixing nitrous acid and hydrogen peroxide at low temperature contains a stronger oxidant than either ingredient alone, but the chemistry involved was not put on a sound basis until 1994. Additional preparatory methods are also available. [Pg.1228]

Peroxodisulfuric acid, 4476 Peroxomonophosphoric acid, 4501 Peroxomonosulfuric acid, 4475 Peroxonitric acid, 4431 Peroxyacetyl perchlorate, 0733 Peroxybenzoic acid, 2729... [Pg.2123]

It is convenient to mention here that peroxonitric acid can be made by interaction of HN02 with an excess of H202 at or below 0°C. In acid solution at room temperature its half life is ca. 30 min decomposition is rapid in alkaline solution giving N02 and 02.62... [Pg.333]

Peroxonitrous acid is an acid of medium strength (p/fa = 6.8), which rapidly decomposes in neutral conditions (ti/2 = Is at pH = 7.4). Peroxonitrite can isomerize to nitrate or decompose to nitrite and dioxygen. Isomerization to nitrate is a major pathway in acidic media. The mechanism for the decomposition is still in doubt, but it is believed that HOONO homolyzes to give the NO2/OH radical pair. Peroxonitrites are stable in basic solution. Peroxonitrous acid is formed as a yellow intermediate in the reaction of nitrite solutions with hydrogen peroxide that leads to nitrates. [Pg.3066]

It is a powerful oxidizing agent, stronger than nitric acid or hydrogen peroxide. The two-electron reduction potential of peroxonitrous acid is 1.68 V. [Pg.3066]

Peroxonitrous acid reacts with azide to form dinitrogen oxide, nitrous acid, and N2. [Pg.3066]

In the reaction of pure hydrogen peroxide with dinitrogen pentoxide at 195 K, peroxonitric acid is formed ... [Pg.3069]

Peroxonitric acid is very unstable and decomposes explosively at temperatures above 243 K. It has a pTTa of... [Pg.3069]

The decomposition either follows homolysis, initially to N02/02, or heterolysis, initially to 02/N02. In contrast to peroxonitrous acid, peroxonitric acid is insensitive to the presence of CO2. Peroxonitric acid is a strong oxidizer with a two-electron reduction potential of 1.83 V. [Pg.3070]

Peroxonitric Acid, Pure material decomposes R. Schwarz, ZAnorgChem 256,... [Pg.674]

Amels, P., H. Elias, U. Goetz, U. Steingens and K. J. Wannowius Kinetic investigation of the stability of peroxonitric acid and of its reaction with sulphur(rV) in aqueous solution, in P. Wameck (ed.). Heterogeneous and Liquid-Phase Processes, Springer, Berlin (1996) 77-88. [Pg.260]

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