Solute-solvent interactions in ion pair extraction of tetraalkyl-ammonium iodides. II. The effect of hydration of iodide in organic solvents on the extraction constant.
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概要
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Solubilities of tetraalkylammonium iodides Et<SUB>4</SUB>NI, Pr<SUB>4</SUB>NI, and Bu<SUB>4</SUB>NI in nitrobenzene, in water, and in their mutually saturated solvents, and of Pr<SUB>4</SUB>NI in 1,1-dichloroethane and in its water saturated solvent were measured at 25 °C. Conductances of Et<SUB>4</SUB>NI, Pr<SUB>4</SUB>NI, and Bu<SUB>4</SUB>NI in nitrobenzene and Bu<SUB>4</SUB>NI in 1,1-dichloroethane, 1,2-dichloroethane, and dichloromethane have also been measured at 25 °C. A small amount of water in organic solvents increases the solubilities of the salts roughly twice those in pure solvents and decreases the association constants around 15% while a small amount of organic solvent in water gives a slight effect. Effects of mutual saturation of water and organic solvent on extraction equilibria of R<SUB>4</SUB>NI were discussed in terms of the selective hydration of the iodide.
- 公益社団法人 日本化学会の論文
著者
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YAMAMOTO YUROKU
Department of Chemistry, Faculty of Science, Hiroshima University
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Yamamoto Yuroku
Department Of Chemistry Faculty Of Science Hiroshima University
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Ito Kazuaki
Department Of Applied Chemistry Nagoya Institute Of Technology
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Iwamoto Etsuro
Department of Chemistry, Faculty of Science, Hiroshima University
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