The Pulse Radiolysis of Aqueous Solutions of Some Inorganic Compounds

The reactions of the hydrated electron, e—aq. with a variety of inorganic metal ions, complex metal ions and anions have been investigated with pulses of 4 MeV electrons. Absolute rate constants have been measured in each case and some temperature coefficients have also been determined. Absorption spectra of transient species produced by the pulse have been obtained. Some of these species are unstable valency states produced by reduction withe—aq. , e.g. Ni+, Crv ; others are the result of oxidation by OH, e.g. Cu3+. We have obtained rate constants for the reactions OH+Cu2+ and H+MnO-4. The significance of the rate constants and spectra is discussed.