1971•Transactions of the Faraday SocietyRequires access

Anodic oxidation of oxalic acid on gold

James W. Johnson, Stefan C. Mueller, W. J. James

Abstract

The anodic oxidation of oxalic acid on Au has been studied at 80°C in aqueous media. The reaction rate was measured as a function of potential, oxalic acid concentration, pH, and temperature in H2SO4+ K2SO4+ KOH solutions of unit ionic strength. The oxalic acid was oxidized in acidic media to CO2. A first-order dependence of the rate on both pH and undissociated oxalic acid was found. The first decarboxylation step appears to be rate determining.

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Key concepts: Oxalic acid, Chemistry, Decarboxylation, Inorganic chemistry, Aqueous solution, Anode, Ionic strength, Aqueous medium