Solubility of carbazole in binary chloroalkane + dibutyl ether solvent mixtures |
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Authors: | James W McCargar William E Acree Jr |
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Institution: | (1) Present address: Department of Chemistry, University of Cincinnati, 45221 Cincinnati, OH;(2) Department of Chemistry, University of North Texas, 76203 Denton, TX |
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Abstract: | Solubilities are reported for carbazole in three binary chloroalkane + dibutyl ether solvent mixtures at 25°C. Results of these measurements are compared with solution models developed for solubility in systems containing specific solute-solvent interactions. A simple model based on a single 1:1 carbazole:dibutyl ether complex described the solubility data, though the calculated equilibrium constant was about one-half of values published previously. A more sophisticated solution model, which assumes both carbazole:dibutyl ether and carbazole:chloroalkane complexes, was needed to thermodynamically describe the systems studied. Equilibrium constants for three presumed carbazole:chloroalkane complexes are calculated from measured carbazole solubilities. |
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Keywords: | Molecular complexation carbazole solubilities equilibrium constants |
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