Henry's law constants of propane, propene, butane, and 2-methylpropane in methanol at 374-490K

Henry's law constants of propane, propene, butane, and 2-methylpropane in methanol in the temperature range of 374-490K are experimentally obtained. A similar method to a gas stripping method is applied to measure the Henry's law constants at high temperatures up to the critical point of m...

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Published in:Fluid phase equilibria 2006-02, Vol.240 (1), p.56-62
Main Authors: MIYANO, Yoshimori, FUJIHARA, Ichiro, SATO, Katsuhiko
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Language:English
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Chemistry
Exact sciences and technology
General and physical chemistry
Solubility
Solutions
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description Henry's law constants of propane, propene, butane, and 2-methylpropane in methanol in the temperature range of 374-490K are experimentally obtained. A similar method to a gas stripping method is applied to measure the Henry's law constants at high temperatures up to the critical point of methanol. The rigorous formula for evaluating the Henry's law constants from these measurements is applied to the data reduction for these highly volatile mixtures. By using this formula, the effect of the vapor space of the cell is discussed. The plot of Henry's law constants versus temperature goes through a maximum and approaches an unique point at the critical temperature of methanol. The fugacity coefficient of the solute in the vapor phase at infinite dilution and the infinite dilution activity coefficient of the solute in liquid phase are evaluated from these experimental data.
doi_str_mv 10.1016/j.fluid.2005.12.001
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General and physical chemistry
Solubility
Solutions
title Henry's law constants of propane, propene, butane, and 2-methylpropane in methanol at 374-490K
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