Extraction of microamounts of strontium into nitrobenzene by using hydrogen dicarbollylcobaltate in the presence of dicyclohexyl-18-crown-6

Author: Valentová Z.   Vaňura P.   Makrlík E.  

Publisher: Springer Publishing Company

ISSN: 0236-5731

Source: Journal of Radioanalytical and Nuclear Chemistry, Vol.267, Iss.2, 2006-01, pp. : 471-475

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Abstract

Extraction of microamounts of strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of dicyclohexyl-18-crown-6 (DCH18C6, L) has been investigated. The equilibrium data have been explained assuming that the complexes HL+, HL, SrL2+and SrL are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined.

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