The oxidation of As(III) to As(V) is explored using hydrogen peroxide
in water solution at initial concentrations of As(III) of 0.3, 3.0, 15
.0 g.l-1 exhibiting 50% and 100% excess H2O2 over the stoichiometric a
mount at 25-degrees-C in an acid medium of pH 2 and alkaline medium of
pH 11.