Original scientific paper

Monooctyl-α-anilinobenzylphosphonic Acid as Reagent for Extraction and Separation of Bismuth(III) and Lead(II)

Vlasta Allegretti Živčić ; Department of Chemistry, Laboratory of Analytical Chemistry, Faculty of Science, University of Zagreb, 41000 Zagreb, Republic of Croatia
Marko J. Herak ; Department of Chemistry, Laboratory of Analytical Chemistry, Faculty of Science, University of Zagreb, 41000 Zagreb, Republic of Croatia

Abstract

Monooetyl-a-anilinobenzylphosphonic acid was used as extractive reagent for the separation of bismuth(III) and lead(II). The optimal pH value for bismuth(III) extraction was 1.75, whereas lead(II) was quantitatively extracted at pH 5. The separation factor for the two investigated metal ions at pH 1.75 was 140. On the basis of extractive experimental data, the stoichiometry of the extraction mechanisms was presumed. The described method is simple and rapid and can be proposed for the separation of bis- muth(III) from lead(II).

Keywords

Hrčak ID:

137152

URI

https://hrcak.srce.hr/137152

Publication date:

29.1.1993.

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