The Kinetics of the Oxygenation of Ferrous Ion in Phosphoric Acid Containing Pyrophosphate

Year: 1955

DOI: 10.7907/9W2D-4P13

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The kinetics of the ferrous-oxygen reaction in an acid solution containing phosphate and pyrophosphate has been investigated. The rate law at [...] is [...]. Sodium perchlorate is used to maintain the ionic strength at 1.0-l.1M. There is inhibition due to ferric ion. This phase of the reaction has not been investigated. It is believed that the inhibition is due to the insolubility of ferric pyrophosphate at high concentrations and to the formation of complexes at low concentrations. The following mechanism, suggested by Weiss, is consistent with the experimental results. [...]. The rate of the reaction is given by [...]. The phosphate and pyrophosphate species catalyse the reaction through complex ion formation.