Fresenius' Zeitschrift für analytische Chemie

, Volume 175, Issue 6, pp 421–428 | Cite as

Oxidation with manganate solutions

IV. Determination of monovalent thallium
  • I. M. Issa
  • M. G. E. Allam
Originalabhandlungen

Summary

The reaction between Tl+ solutions and manganate is sluggish. In the titration of Tl+ with manganate solution the end points are always attained earlier than the theoretical. When the reaction is accelerated by NaCl and heating to 45–50° C the end points were found to be concordant with the theoretical values. Titration of manganate with Tl+ solutions gives accurate results in presence of telluric acid but not in its absence. It is also possible to determine Tl+ by oxidation with an excess of K2MnO4 using arsenite as a back titrant for excess oxidant.

Keywords

Oxidation Physical Chemistry Analytical Chemistry Inorganic Chemistry Titration 

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References

  1. 1.
    den Boef, G., J. den Boef-Nugteren u. B. van Laar: Z. analyt. Chem. 166, 422 (1959).Google Scholar
  2. 2.
    Issa, I. M., and A. A. Abdul Azim: Anal. chim. Acta (Amsterdam) 14, 217 (1956); cf. Z. analyt. Chem. 154, 153 (1957).Google Scholar
  3. 3.
    Issa, I. M., M. G. E. Allam and M. M. A. Amer: Z. analyt. Chem. 172, 87 (1960).Google Scholar
  4. 4.
    Issa, I. M., and I. M. El-Sherif: Anal. chim. Acta (Amsterdam) 14, 300 (1956); cf. Z. analyt. Chem. 154, 364 (1957).Google Scholar
  5. 5.
    Issa, I. M., and I. M. El-Sherif: Anal. chim. Acta (Amsterdam) 15, 4 (1956); cf. Z. analyt. Chem. 155, 372 (1957).Google Scholar
  6. 6.
    Issa, I. M., A. H. Fathalla and R. M. Issa: Anal. chim. Acta (Amsterdam) 14, 573 (1956); cf. Z. analyt. Chem. 155, 350 (1957).Google Scholar
  7. 7.
    Issa, I. M., and R. M. Issa: Analyst 79, 771 (1954); cf. Z. analyt. Chem. 148, 213 (1955/56).Google Scholar
  8. 8.
    Issa, I. M., and R. M. Issa: Anal. chim. Acta (Amsterdam) 13, 323 (1955); cf. Z. analyt. Chem. 152, 284 (1956).Google Scholar
  9. 9.
    Issa, I. M., and R. M. Issa: Anal. chim. Acta (Amsterdam) 14, 578 (1956); cf. Z. analyt. Chem. 155, 368 (1957).Google Scholar
  10. 10.
    Issa, I. M., H. Khalifa and M. G. E. Allam: Z. analyt. Chem. 172, 21 (1960).Google Scholar
  11. 11.
    Latimer, W. M.: Oxidation Potentials, Prentice Hall, 2nd Edit. 1959, p. 167.Google Scholar

Copyright information

© Springer-Verlag 1960

Authors and Affiliations

  • I. M. Issa
    • 1
  • M. G. E. Allam
    • 1
  1. 1.Chemistry Department, Faculty of ScienceCairo and Assiut UniversityEgypt, UAR

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