From Wikipedia, the free encyclopedia

Nitrogen oxide is typically any binary compound of oxygen and nitrogen, or a mixture of such compounds:

• Nitric oxide (NO), nitrogen(II) oxide
• Nitrogen dioxide (NO₂), nitrogen(IV) oxide
• Nitrous oxide (N₂O), nitrogen (I) oxide
• Dinitrogen trioxide (N₂O₃), nitrogen(II,IV) oxide
• Dinitrogen tetroxide (N₂O₄), nitrogen(IV) oxide
• Dinitrogen pentoxide (N₂O₅), nitrogen(V) oxide

(Note that the last three are unstable.)

Chemical reactions that produce nitrogen oxides often produce several different compounds, the proportions of which depend on the specific reaction and conditions. For this reason, secondary production of N₂O is undesirable, as NO and NO₂ — which are extremely toxic — are liable to be produced as well.

Nitric oxide, NO	Nitrogen dioxide, NO2	Nitrous oxide, N2O	Dinitrogen trioxide, N2O3
Dinitrogen tetroxide, N2O4	Dinitrogen pentoxide, N2O5

NO_x

NO_x is a generic term for mono-nitrogen oxides (NO and NO₂). These oxides are produced during combustion, especially at high temperate. NO_{x</sub is a component of smog and are greenhouse gases.}

_Derivatives

_{Oxidized (cationic) and reduced (anionic) derivatives of many of these oxides exist: nitrite (NO−2}), nitrate (NO−3), nitronium (NO+2), and nitrosonium (NO⁺). NO₂ is intermediate between nitrite and nitronium:

NO₂⁺ + e⁻ → NO₂

NO₂ + e⁻ → NO₂⁻

See also

• Nitrogen oxide sensor

References

Definition from Wiktionary, a free dictionary

Translingual

Noun

NO_x

1. Generic term for the various nitrogen oxides produced during combustion.

English

Pronunciation

• N-O-X, or /nŏks/

Abbreviation

NO_x

1. (chemistry) Generic term for the various nitrogen oxides produced during combustion.

Translations