Selective Transport of Alkali Metal Cations in Solvent Extraction by Proton-Ionizable Dibenzocrown Ethers
- 1 January 1992
- journal article
- research article
- Published by Informa UK Limited in Journal of Coordination Chemistry
- Vol. 27 (1-3), 75-85
- https://doi.org/10.1080/00958979209407944
Abstract
Lipophilic crown ethers with pendant proton-ionizable groups are novel metal complexing agents for use in solvent extraction of alkali metal cations. A variety of dibenzocrown ether carboxylic acids and dibenzo crown phosphonic acid monoesters have been examined to probe the effect of structural variation within the complexing agent upon selectivity and efficiency in solvent extraction. Results from competitive solvent extractions of alkali metal cations from aqueous solutions into chloroform are summarized.Keywords
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