Electrochemical Syntheses of Sodium Percarbonate in Aqueous Solution

The present research is focused on electrochemical production of sodium percarbonate as both the 2Na2CO3.3H2O2 form and the Na2C2O6 formulation. The routes to these two electrochemical syntheses from carbonate solution proceed through oxygen reduction at the cathode and electrochemical oxidation of water at the anode, respectively. We have studied each of these reactions separately, potentiostatically for the cathodic reaction and galvanostatically for the anodic side. In both cases, the effects of experimental conditions, such the addition of a stabilizer or the use of a cation-permeable membrane, have been investigated; products were analyzed for % active oxygen content in dry samples according standard methods.