Pulse radiolysis studies on pertechnetate and perrhenate in aqueous media. Decay of the technetium(VI) transient

The results of studies to monitor the rate of reaction of perrhenates and pertechnetates with various radical species, to spectrophotometrically characterize the Tc(VI) and Re(IV) transients produced by reaction with the hydrated electron, and to obtain information about the rate and mechanism of decay of these transients are reported. The Re(VI) transient was found to be more reactive than the Tc(VI) transient. The perrhenate was also found to react with OH, while no such reaction is noted for the pertechnetate. 28 refs.