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Extraction of Pm(III) from acidic solutions using dihexyl N,N-diethylcarbamoylmethyl phosphonate

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Benzene solution of dihexyl N,N-diethyl-carbamoylmethyl phosphonate (CMP) has been used for the extraction of Pm(III) from 0.2 to 6.0M HNO3. High extraction of Pm(III) was observed between 2 to 4M HNO3. The species extracted in the organic phase were Pm(NO3)3.3CMP and Pm (NO3)3 (3-n) CMP.nTBP when the extractants were CMP and CMP+TBP, respectively. Pm could be efficiently backextracted from both organic phases by pH 2.0 HNO3 solution.

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Mathur, J.N., Murali, M.S. & Natarajan, P.R. Extraction of Pm(III) from acidic solutions using dihexyl N,N-diethylcarbamoylmethyl phosphonate. Journal of Radioanalytical and Nuclear Chemistry Letters 155, 195–200 (1991). https://doi.org/10.1007/BF02166644

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  • Physical Chemistry
  • Benzene
  • Inorganic Chemistry
  • Acidic Solution
  • HNO3