The extractability of potassium as picrates (KPic and K(L)Pic, L:18-Crown-6) and its relationship to the properties of the solvents.
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概要
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The distribution ratios, <I>D</I>,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 <I>D</I>, Hansen's three-dimensional solubility parameters and Dimroth's <I>E</I><SUB>T</SUB> values are most satisfactory for their applicability to a wide variety of solvents.
- 公益社団法人 日本化学会の論文
著者
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Tôei Kyoji
Department of Science Faculty of Chemistry Okayama University
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Minami Masayoshi
Department of Chemistry, Faculty of Science, Okayama University
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Iwachido Tadashi
College of Liberal Arts, Okayama University
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Naito Hirohiko
Department of Chemistry, Faculty of Science, Okayama University
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Tôei Kyoji
Department of Chemistry, Faculty of Science, Okayama University
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