Original scientific paper

Extraction of Palladium- [4-(2-Thiazolylazo)Resorcinol] Complexes and Spectrophotometric Determination of Palladium

M. Široki ; Laboratory of Analytical Chemistry, Faculty of Science, University of Zagreb, Strossmayerov trg 14, 41000 Zagreb, Yugoslavia
Lj. Marić ; Laboratory of Analytical Chemistry, Faculty of Science, University of Zagreb, Strossmayerov trg 14, 41000 Zagreb, Yugoslavia

Abstract

The extraction of palladium(II) as a red camples with 4-(2- -thiazolylazo)resarciinol (TAR = H2R) by tetraphenylphasphanium chloride in chloroform was studied. Quantitative extraction was achieved in the pH region between 2 and 10. By extraction at pH 2 and by spectrophotometric measurements of the red complex in the organic phase, a sensitive and selective method for palladium determination was evaluated. An anionic complex [PdRCl]" was predominantly extracted over a wide pH range forming ion associates with tetraphenylphasphomium cation 0Lax = 525 . nm, s = 2.4 X 104 1 mol1 cm"1). The extracted complexes were studied in solution and by characterization of the isolated solid compounds

Keywords

Hrčak ID:

137407

URI

https://hrcak.srce.hr/137407

Publication date:

10.8.1990.

Visits: 575 *