Solvent extraction of europium and americium into phenyltrifluoromethyl sulfone by using synergistic mixture of hydrogen dicarbollylcobaltate and N,N,N′,N′-tetraethyl-2,6-dipicolinamide
Extraction of microamounts of europium and americium by a phenyltrifluoromethyl sulfone (FS 13) solution of hydrogen dicarbollylcobaltate (H + B − ) in the presence of N,N,N′,N′ -tetraethyl-2,6-dipicolinamide (TEtDPA, L) has been investigated. The equilibrium data have been explained assuming that t...
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Published in | Journal of radioanalytical and nuclear chemistry Vol. 284; no. 3; pp. 629 - 633 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
01.06.2010
Springer |
Subjects | |
Online Access | Get full text |
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Summary: | Extraction of microamounts of europium and americium by a phenyltrifluoromethyl sulfone (FS 13) solution of hydrogen dicarbollylcobaltate (H
+
B
−
) in the presence of
N,N,N′,N′
-tetraethyl-2,6-dipicolinamide (TEtDPA, L) has been investigated. The equilibrium data have been explained assuming that the species HL
+
,
and
(M
3+
= Eu
3+
, Am
3+
) are extracted into the organic phase. The values of extraction and stability constants of the cationic complex species in FS 13 saturated with water have been determined. It was found that the stability constants of the corresponding complexes
and
, where
n
= 2, 3 and L is TEtDPA, in the mentioned FS 13 medium are comparable. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0236-5731 1588-2780 |
DOI: | 10.1007/s10967-010-0517-5 |