Collect. Czech. Chem. Commun. 1996, 61, 232-241

Kinetic Study of the Oxidation of Glycine by Permanganate Ions in Acid Medium

Maria J. Insausti, Fernando Mata-Pérez and Maria P. Alvarez-Macho

Departamento de Química-Física, Facultad de Ciencias,Universidad de Valladolid, 47005 Valladolid, Spain


The oxidation of glycine by permanganate ions was studied in a buffered solution at pH 2.2. An autocatalytic reaction was observed, autocatalyzed by a soluble form of Mn(IV). Autocatalytic S-shaped kinetic curves were obtained by the spectrophotometric method and characterized by the time ti vs concentration in the inflection point.

Keywords: Permanganate Oxidation; Glycine; Autocatalysis; Intermediate Mn(IV).