Synergistic extraction of calcium and strontium into nitrobenzene by using hydrogen dicarbollylcobaltate and dodecaethylene glycol
Solvent extraction of microamounts of calcium and strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H + B − ) in the presence of dodecaethylene glycol (DDEG, L) has been investigated. The equilibrium data have been explained assuming that the species HL + , H 2 L 2+ , ML 2+ and...
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Published in | Journal of radioanalytical and nuclear chemistry Vol. 295; no. 3; pp. 2215 - 2220 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
Springer Netherlands
01.03.2013
Springer |
Subjects | |
Online Access | Get full text |
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Summary: | Solvent extraction of microamounts of calcium and strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H
+
B
−
) in the presence of dodecaethylene glycol (DDEG, L) has been investigated. The equilibrium data have been explained assuming that the species HL
+
, H
2
L
2+
, ML
2+
and MHL
3+
(M
2+
= Ca
2+
, Sr
2+
; L = DDEG) are extracted into the organic phase. The values of extraction and stability constants of the complex species in nitrobenzene saturated with water have been determined. It was found that in this nitrobenzene medium, the stability constant of the SrL
2+
complex is somewhat higher than that of CaL
2+
. |
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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/s10967-012-2273-1 |