Saez, C; Canizares, P; Sanchez-Carretero, A; Rodrigo, MA

[Saez, C.; Canizares, P.; Sanchez-Carretero, A.; Rodrigo, M. A.] Univ Castilla La Mancha, Fac Ciencias Quim, Dept Chem Engn, E-13071 Ciudad Real, Spain

In this work, a new method for the synthesis of perbromate, based on the use of conductive-diamond electrodes is described. The procedure developed is able to produce significant amounts of perbromates by electrolyses of bromate solutions. Hydroxyl radicals seem to play a very important role in the process. For this reason, high current densities (that promotes its occurrence) and raw material concentrations around 0.1 M of bromates are required to obtain an efficient process. Temperature in the range 20-30 A degrees C seems to be recommended to obtain good efficiencies of the electrosynthetic process although the explanation of this observation is still unclear.