Development of Abraham model correlations for solute transfer into both 2-propoxyethanol and 2-isopropoxyethanol at 298.15 K
| Autor: | Shoshana Zhang, Colleen Dai, Amber Schmidt, Michael H. Abraham, Igor A. Sedov, Heidi Zettl, William E. Acree, Erin Hart, Victoria Koshevarova, Diliara Khaibrakhmanova, Damini Grover |
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| Rok vydání: | 2015 |
| Předmět: |
Activity coefficient
Analytical chemistry Condensed Matter Physics Atomic and Molecular Physics and Optics Molar solubility Electronic Optical and Magnetic Materials Dilution Partition coefficient chemistry.chemical_compound chemistry Materials Chemistry Organic chemistry Alkylbenzenes Physical and Theoretical Chemistry Solubility Benzene Spectroscopy Tetrahydrofuran |
| Zdroj: | Journal of Molecular Liquids. 212:833-840 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2015.10.037 |
| Popis: | Infinite dilution activity coefficients (γ ∞ ) were measured at 298 K for 9 different aliphatic hydrocarbons (alkanes, cycloalkanes, alkenes), 7 different aromatic compounds (benzene, alkylbenzenes, halobenzenes), and for 1,2-dichloropropane, dichloromethane, acetone, acetonitrile, tetrahydrofuran, 1,4-dioxane and 2-propanol dissolved in both 2-propoxyethanol and 2-isopropoxyethanol at 298 K using a headspace gas chromatographic method. As part of the experimental study solubilities of 18 and 20 crystalline organic nonelectrolyte solutes were determined in 2-propoxyethanol and 2-isopropoxyethanol, respectively, at 298 K using a UV/visible spectrophotometric method. The experimental values were converted to gas-to-alkoxyethanol partition coefficients, water-to-alkoxyethanol partition coefficients, and molar solubility ratios using standard thermodynamic relationships. Abraham model correlations for solute transfer into both alkoxyethanols were derived from the calculated solubility ratios and partition coefficients. The derived Abraham model describes the observed solubility ratios and partition coefficients to within 0.12 log units (or less). |
| Databáze: | OpenAIRE |
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