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

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作者
Z. Valentová
P. Vaňura
E. Makrlík
机构
[1] Prague Institute of Chemical Technology,
[2] Faculty of Applied Sciences,undefined
[3] University of West Bohemia,undefined
关键词
Hydrogen; Physical Chemistry; Inorganic Chemistry; Strontium; Organic Phase;
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摘要
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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页码:471 / 475
页数:4
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