Reevaluation of the reactivity of hydroxylamine with O2-/HO2.
The reactivity of hydroxylamine with HO2/O2- radicals was studied by pulse radiolysis and stopped-flow photolysis over a pH range of 1.1-10.5. Upper limits for the rate of reaction indicate that hydroxylamine, if it reacts at all, reacts at a very slow rate. Its use as an indicator for O-2 and an assay for superoxide dismutase is, therefore, inappropriate.
D055598:Chemical Phenomena; D002621:Chemistry; D005609:Free Radicals; D006863:Hydrogen-Ion Concentration; D019811:Hydroxylamine; D006898:Hydroxylamines; D006900:Hydroxylation; D007700:Kinetics; D008956:Models, Chemical; D013481:Superoxides
D005609:Free Radicals; D006898:Hydroxylamines; D013481:Superoxides; D019811:Hydroxylamine