Photochemical behaviour of Tc2OCl104- and TcnOY4n-2y+ in chloride media

摘要

The stabilities of the technetium polymers: Tc2OCl104- and TcnOy4n-2y have been studied under light irradiation in 3 M chloride media with a pH range from 0 to 1.3. It has been shown that under irradiation, Tc2OCl104- is not stable and undergoes dissociation to TcCl5(H2O)(-) at pH=0 and pH = 0.3. At pH = 1, irradiation of Tc2OCl104- leads to a stationary state involving TcCl5(H2O)(-) and Tc2OCl104-. At pH = 1.3, TnOy4n-2y+ remains stable under irradiation. Under light irradiation, the predominance diagram of Tc(IV) species obtained from Tc2OCI104- aquation in a pH range from 0 to 1 is drawn.