Kinetics and Product Identification of Oxidation by Ferrate(VI) of Water and Aqueous Nitrogen Containing Solutes

摘要

Water is shown to be oxidized by ferrate(VI) via a pathway dominated by protonated ferrate and leading to molecular oxygen via hydrogen peroxide. Nitrogen-containing solutes are oxidized in competition with water oxidation. Products of oxidation are determined by a variety of analytical methods. Iron(II) is shown to be an intermediate state of iron which originated as Fe(VI) but Fe(III) is the final product in the absence of a trapping reagent for Fe(II). Nitroxyl is shown to be an important intermediate species in the oxidation of azide and hydroxylamine.