Abstract:
Using pulse radiolysis with optical, conductometric and polarographic detection it is shown that the oxidation of T1+, Ag+, Cu2 ! and Sn2 ■ by hydroxyl radicals proceeds via on OH adduct: Mc"+ + •OH Me(OH)'l+. Depending on pH, the OH adduct may react with a proton followed by water elimination, may add OH- or react with water followed by elimination of a proton. The pA" values for the equilibria Me('l+‘)+ = Mc(OH)n+ ~ Me(OH)O-1)4 decrease with increasing state of oxidation of Me. The oxidative properties decrease with increasing state of hydrolysis.
