SCHEDULED MAINTENANCE
Extractabilities of lanthanoid picrates are doubled by the use of D2O, instead of H2O, as an aqueous phase in the solvent extraction with 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6), whereas no appreciable enhancement is found in the extractabilities of alkali and alkaline earth picrates.
K. Nakagawa, Y. Inoue and T. Hakushi, J. Chem. Soc., Chem. Commun., 1991, 1683 DOI: 10.1039/C39910001683
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