Bibliographic Details
| Title: |
Alkyl-substituted 2,6-dioxadiazolylpyridines as selective extractants for trivalent actinides. |
| Authors: |
Weigl, M.1 weigl@ine.fzk.de, Müllich, U.1, Geist, A,1, Gompper, K.1, Zevaco, T.2, Stephan, H.3 |
| Source: |
Journal of Radioanalytical & Nuclear Chemistry. Jun2003, Vol. 256 Issue 3, p403-412. 10p. |
| Subjects: |
Pyridine, Heterocyclic compounds, Actinide elements, Heavy elements, Radioactive substances, Radiochemistry, Nuclear chemistry, Physical & theoretical chemistry |
| Abstract: |
2,6-di(3-alkyl-1,2,4-oxadiazol-5-yl)pyridines, 2,6-di(5-alkyl-1,3,4-oxadiazol-2-yl)pyridines, and 2,6-di(5-alkyl-1,2,4-oxadiazol-3-yl)pyridines were synthesized and tested for their americium(III)-europium(III) selectivity by liquid-liquid extraction. 0.02M solutions of the compounds extract americium(III) 2-bromohexanoates as monosolvates, AmA3B, from solutions of pH 2, with an americium(III)-europium(III) separation factor of up to 23. Decreasing the alkyl chain length (butyl < ethyl < methyl) or the polarity of the diluent (chlorobenzene < toluene < tert.-butyl benzene) increased both americium(III) distribution ratio and americium(III)-europium(III) separation factor. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
