Ion-Pair Extraction of Alkali Mental Nitrate Salts by Lipophilic, Benzo-Substituted 24-Crown-8 Ethers
- 1 January 1997
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 32 (1), 275-284
- https://doi.org/10.1080/01496399708003199
Abstract
The extraction of alkali metal nitrate salts by 24-crown-8 ethers bearing multiple benzo substituents has been surveyed in 1,2-dichloroethane diluent at 25 °C. The results reveal that the addition of benzo-substituents onto the 24-crown-8 increases both the extraction efficiency and the selectivity for the larger cations. Substitution of branched alkyl groups onto the benzo rings of 24-crown-8 ethers has a relatively small influence on their extraction properties.Keywords
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