Journal of Radioanalytical and Nuclear Chemistry

, Volume 83, Issue 2, pp 247–255

Extraction-spectrophotometric and radiometric investigation of the ternary ion-association complex of niobium(V) with pyrocatechol and triphenyl-tetrazolium chloride

  • A. Alexandrov
  • S. Kostova

DOI: 10.1007/BF02037138

Cite this article as:
Alexandrov, A. & Kostova, S. Journal of Radioanalytical and Nuclear Chemistry, Articles (1984) 83: 247. doi:10.1007/BF02037138


The optimum conditions for extraction of niobium(V) as a ternary ion-association complex with pyrocatechol and triphenyltetrazolium chloride(TTC) have been determined. The investigation of the composition has shown that the ratio Nb:proocatechol:TTC is 1:2:1 Kex, KD and β have been determined radiometrically, using the chemical model. The influence of foreign ions on the extraction of the ion-association complex has been studied. A method for artifical mixture and steel containing niobium has been used.

Copyright information

© Akadémiai Kiadó 1984

Authors and Affiliations

  • A. Alexandrov
    • 1
  • S. Kostova
    • 1
  1. 1.Department of Genral and Inorganic ChemistryUniversity of PlovdivPlovdiv(Bulgaria)

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