Nitrogen Oxide

Nitrogen oxide can refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds:

• Nitric oxide, also known as nitrogen monoxide, (NO), nitrogen(II) oxide
• Nitrogen dioxide (NO₂), nitrogen(IV) oxide
• Nitrous oxide (N₂O), nitrogen(-I,III) oxide
• Nitrosylazide (N₄O), nitrogen(-I,0,I,II) oxide
• Nitrate radical (NO₃), nitrogen(VI) oxide
• Dinitrogen trioxide (N₂O₃), nitrogen(II,IV) oxide
• Dinitrogen tetroxide (N₂O₄), nitrogen(IV) oxide
• Dinitrogen pentoxide (N₂O₅), nitrogen(V) oxide
• Trinitramide (N(NO₂)₃), nitrogen(0,IV) oxide

In atmospheric chemistry, air pollution, and related fields, nitrogen oxides refers specifically to NO_x (NO and NO₂).

Only the first three of these compounds can be isolated at room temperature. N₂O₃, N₂O₄, and N₂O₅ all decompose rapidly at room temperature. NO₃, N₄O, and N(NO₂)₃ are very reactive.

N₂O is stable and rather unreactive at room temperature, while NO and NO₂ are quite reactive but nevertheless quite stable when isolated.

• Nitric oxide, NO
• Nitrogen dioxide, NO₂
• Nitrous oxide, N₂O
• Dinitrogen trioxide, N₂O₃
• Dinitrogen tetroxide, N₂O₄
• Dinitrogen pentoxide, N₂O₅
• Trinitramide, N(NO₂)₃