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Fresenius' Zeitschrift für analytische Chemie

, Volume 178, Issue 1, pp 12–19 | Cite as

Low temperature oxidation of oxalic acid with potassium permanganate

  • I. M. Issa
  • A. A. El-Aasser
  • M. M. El-Merzibani
Originalabhandlungen

Summary

Oxidation of oxalate and oxalic acid with permanganate was studied at ordinary temperature. In the presence of mixtures of Mn2+ and Cu2+ ions the reaction is sufficiently rapid for a visual titration. The end point is attained when a lilac or a faint violet colour appears. A blank experiment is necessary as Cu2+ consumes some permanganate before the end point can be perceived. Other catalysts including Zn2+, Cd2+, Hg2+ and Ag+ ions were tried but were less efficient.

Keywords

Oxidation Colour Potassium Physical Chemistry Analytical Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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    Fowler, R. M., andH. A. Bright: J. Res. nat. Bur. Standards15, 493 (1935); cf. Z. analyt. Chem.111, 274 (1937/38).Google Scholar
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    Issa, I. M., andM. Hamdy: Anal. chim. Acta (Amsterdam)22, 558 (1960).Google Scholar
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    Latimer, W. M.: Oxidation Potentials, Prentice Hall, 2nd edit. 1959, p. 131.Google Scholar
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    Stamm, H.: Angew. Chem.47, 791 (1934).Google Scholar
  5. 5.
    Ubbelohde, A. R. J. P., cited inVogel, A. I.: Quantitative Inorganic Analysis, Longmans Green, 2nd. edit., 1955, p. 312.Google Scholar

Copyright information

© Springer-Verlag 1960

Authors and Affiliations

  • I. M. Issa
    • 1
  • A. A. El-Aasser
    • 1
  • M. M. El-Merzibani
    • 1
  1. 1.Chemistry DepartmentAssiut UniversityAssiutEgypt, U.A.R.

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