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Synergistic Extraction Study of Cobalt (II) by Mixtures of Capric Acid and Tri-n-octylphosphine Oxide (TOPO)

Synergistic Extraction Study of Cobalt (II) by Mixtures of Capric Acid and Tri-n-octylphosphine... AbstractThe synergistic solvent extraction of cobalt (II) from sulfate aqueous solutions with capric acid (HL) and tri-n-octylphosphine oxide (TOPO) intochloroform, has been studied. The experimental data for the capric acid alone reveal the self-adduct formation CoL2(HL)2, in the organic phase. A remarkable enhancement on the extraction of cobalt (II) with capric acid was observed upon the addition TOPO. The synergistic enhancement was ascribed to the adduct formation CoL2(HL)2 n(TOPO) (n= 1 or 2). The TOPO-HL interaction strongly influences the synergistic extraction efficiency. The value of the partition, dimerization and equilibrium constants were determined. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Analytical Chemistry Letters Taylor & Francis

Synergistic Extraction Study of Cobalt (II) by Mixtures of Capric Acid and Tri-n-octylphosphine Oxide (TOPO)

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Synergistic Extraction Study of Cobalt (II) by Mixtures of Capric Acid and Tri-n-octylphosphine Oxide (TOPO)

Abstract

AbstractThe synergistic solvent extraction of cobalt (II) from sulfate aqueous solutions with capric acid (HL) and tri-n-octylphosphine oxide (TOPO) intochloroform, has been studied. The experimental data for the capric acid alone reveal the self-adduct formation CoL2(HL)2, in the organic phase. A remarkable enhancement on the extraction of cobalt (II) with capric acid was observed upon the addition TOPO. The synergistic enhancement was ascribed to the adduct formation CoL2(HL)2 n(TOPO) (n= 1...
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Publisher
Taylor & Francis
Copyright
© 2017 Har Krishan Bhalla & Sons
ISSN
2230-7532
eISSN
2229-7928
DOI
10.1080/22297928.2017.1316213
Publisher site
See Article on Publisher Site

Abstract

AbstractThe synergistic solvent extraction of cobalt (II) from sulfate aqueous solutions with capric acid (HL) and tri-n-octylphosphine oxide (TOPO) intochloroform, has been studied. The experimental data for the capric acid alone reveal the self-adduct formation CoL2(HL)2, in the organic phase. A remarkable enhancement on the extraction of cobalt (II) with capric acid was observed upon the addition TOPO. The synergistic enhancement was ascribed to the adduct formation CoL2(HL)2 n(TOPO) (n= 1 or 2). The TOPO-HL interaction strongly influences the synergistic extraction efficiency. The value of the partition, dimerization and equilibrium constants were determined.

Journal

Analytical Chemistry Letters – Taylor & Francis

Published: May 4, 2017

Keywords: Solvent extraction; Synergism; TOPO; cobalt (II); Capric acid

References

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