Journal of Radioanalytical and Nuclear Chemistry

, Volume 266, Issue 3, pp 425–429 | Cite as

Solvent extraction studies on the complexation of palladium with alpha benzoin oxime

  • A. Dakshinamoorthy
  • V. Venugopal


For the recovery of palladium from high level liquid waste (HLLW) a rapid and selective method of separation of palladium have been developed using alpha benzoin oxime (ABO) in Solvesso 100 in our laboratory. In continuation of this work, a detailed study is presented to determine the empirical formula (composition) of the palladium-alpha benzoin oxime (Pd-ABO) complex formed during solvent extraction with ABO in Solvesso 100. Both, the molar ratio method and the isomolar series method extended to two phase system are followed to establish the empirical formula of the Pd-ABO complex. The ligand to metal ratio is computed by analyzing the palladium concentration in the organic phase by direct spectrometry, by analysis of the aqueous phase using Arsenazo-III and also by using the 109Pd tracer technique. Degree of dissociation and apparent instability constant of the Pd-ABO complex are reported.


Palladium Solvent Extraction Empirical Formula Liquid Waste Benzoin 


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Copyright information

© Springer-Verlag/Akadémiai Kiadó 2005

Authors and Affiliations

  • A. Dakshinamoorthy
    • 1
  • V. Venugopal
    • 2
  1. 1.Fuel Reprocessing Division, Bhabha Atomic Research Centre
  2. 2.Radiochemistry and Isotope Group, Bhabha Atomic Research Centre

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