Evaluation of radiation stability of N,N -didodecyl N ′ ,N ′-di-octyl diglycolamide: a promising reagent for actinide partitioning
作者： Jammu Ravi , B. Robert Selvan , K. A. Venkatesan , M. P. Antony , T. G. Srinivasan
DOI: 10.1007/S10967-013-2776-4
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摘要: The radiation stability of N,N-di-dodecyl-N′,N′-di-octyl-3-oxapentane-1,5-diamide (D3DODGA) was studied by γ-irradiation the solvent up to a absorbed dose 1,000 kGy. effect on radiolytic degradation D3DODGA assessed measuring distribution ratio Am(III) (DAm(III)) as well third phase formation in irradiated D3DODGA-n-dodecane solution. DAm(III) solution decreased with increase dose. critical aqueous concentration Nd(III) above which forms, increased However, limiting organic remained at ~25 mM irrespective Recovery from radiolytically degraded showed that back extraction quantitative few contacts using dilute nitric acid. Our studies clearly indicated n-dodecane is marginal even kGy, and therefore potential candidate for minor actinide partitioning.
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