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Oxidation of formate by alkaline ferricyanide

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Summary

A catalytic oxidation of formate by alkaline ferricyanide has been studied. To the formate solution an excess of ferricyanide and osmium tetroxide as catalyst were added and the excess ferricyanide was back titrated with arsenious oxide using the amperometric dead stop end point method. The method is superior to the oxidative determination of formate by alkaline permanganate.

Zusammenfassung

Formiat kann durch katalytische Oxydation mit alkalischer Hexacyanoferrat(III)-lösung bestimmt werden, indem man die Probelösung mit einem Überschuß des Reagenses sowie Osmiumtetroxid als Katalysator versetzt und den Überschuß mit Arsen(III)-lösung zurücktitriert.

Der Endpunkt wird nach der Dead stop-Methode bestimmt. Das Verfahren ist der Oxydation mit alkalischer Permanganatlösung überlegen.

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References

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Sincere thanks of the authors are due to Prof. G. B. Singh for providing the necessary facilities. The award of a U.G.C. Scholarship to one of them (A.L.J.R.) is also acknowledged.

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Deshmukh, G.S., Rao, A.L.J. Oxidation of formate by alkaline ferricyanide. Z. Anal. Chem. 194, 110–112 (1963). https://doi.org/10.1007/BF00505198

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  • DOI: https://doi.org/10.1007/BF00505198

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