• Effect of several auxiliary ligands on the extraction of cadmium (II) with 2-thenoyltrifluoroacetone

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    • Keywords


      Synergistic extraction; thenoyltrifluoroacetone; extraction constant; adduct formation constant; cadmium

    • Abstract


      The effect of tributylphosphate (tbp), trioctylphosphineoxide (topo), pyridine (py) and some derivative bases of pyridine as auxiliary ligands on the extraction of cadmium (II) by 2-thenoyltrifluoroacetone (tta) from an aqueous-buffered solution into benzene was studied. A synergistic enhancement was observed in all the systems. The equilibrium constant and adduct formation constant have been calculated. The results showed that the synergistic extraction was attributable to the formation of the base adducts Cd (tta)2 B and Cd(TTA)2 B2. The main factor affecting the stability of the adduct was considered to be the base strength of the synergist.

    • Author Affiliations


      G N Rao1 Roma Lahiri1

      1. Department of Chemistry, Indian Institute of Technology, New Delhi - 110016, India
    • Dates

  • Journal of Chemical Sciences | News

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