Tags: Chemical Compound, Chemical Substance.
Nitroxyl is the common chemical name for HNO being azanone its IUPAC name. It is well known in the gas phase. In aqueous solution it acts as an acid with the conjugate base NO− (pKa = 11.4). NO− is the reduced form of nitric oxide (NO) and is isoelectronic with dioxygen. Nitroxyl can be formed as a reaction intermediate.Nitroxyl is very reactive towards nucleophiles (especially thiols) and quickly dimerizes to hyponitrous acid H2N2O2 which is then dehydrated to nitrous oxide N2O.