The distribution ratios, D,of potassium between an aqueous KCl solution and 57 organic solvents (8 alcohols, 12 ketones, 6 esters, 3 ethers, and 28 hydrocarbons(24 halo- and 2 nitro-substituted and 2 unsubstituted)) were determined in the presence or in the absence of L. The presence of L markedly enhances the extractability of potassium when the halogenated hydrocarbon solvents are used, but only a slight enhancement can be observed for the oxygen-containing solvents. Among the properties showing good correlations with D, Hansen’s three-dimensional solubility parameters and Dimroth’s ET values are most satisfactory for their applicability to a wide variety of solvents.
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Iwachido et al. (1982) studied this question.
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