Nitroxylic acid

Source: Wikipedia, the free encyclopedia.

Nitroxylic acid or hydronitrous acid is an unstable reduced oxonitrogen acid. It has formula H4N2O4 containing nitrogen in the +2 oxidation state.[1] The corresponding anion called nitroxylate is N
2
O4−
4
or NO2−
2
.

The first clue that nitroxylic acid exists was when

CAS number
13968-14-4.

Lithium sodium nitroxylate LiNaNO2 also exists and explodes at 130 °C.[4]

Nitroxylic acid might be produced when nitrous acid is reduced by the Eu2+ ion.[5]

References