کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
204104 460699 2006 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Corresponding-states correlations for estimating partial molar volumes of nonelectrolytes at infinite dilution in water over extended temperature and pressure ranges
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Corresponding-states correlations for estimating partial molar volumes of nonelectrolytes at infinite dilution in water over extended temperature and pressure ranges
چکیده انگلیسی

Analysis has been made of a large volume of data to obtain the partial molar volumes of aqueous solutes at infinite dilution for temperatures up to 700 K and pressures up to 50 MPa. Values of V2∞ are expressed in terms of the infinite dilution water–solute direct correlation function integral (DCFI) at the conditions of interest reduced by the solute's DCFI at 298.15 K, 0.1 MPa. Empirical equations have been found for the temperature-density dependence of these reduced DCFIs for solute classes of: simple fluids, nonpolar compounds, aromatic compounds, monohydric alcohols, monocarboxylic acids, nitriles, amides, and other organic solutes. A reliable, but less accurate generalization, based on pure water DCFI, has also been developed for the reduced DCFI for solute classes of: simple fluids, nonpolar compounds, polar substances, and compounds containing chemically bonded water. At high densities, the reduced DCFI for all solutes is the same as that for water, which is consistent with the behavior of hard-sphere mixtures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 247, Issues 1–2, 15 September 2006, Pages 18–31
نویسندگان
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