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Measurement of Infinite-dilution Activity Coefficients of Alcohols in Water Using Relative Gas-liquid Chromatographic Method

College of Science and Technology, Nihon University, 1-8 Surugadai, Kanda, Chiyoda-ku, Tokyo, Japan
tochigi@chem.cst.nihon-u.ac.jp
Korean Journal of Chemical Engineering, September 2000, 17(5), 502-505(4), 10.1007/BF02707156
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Abstract

Infinite-dilution activity coefficients of n-alcohols (C-1-C-8) in water were measured by using the relative gas-liquid chromatographic method proposed by Orbey and Sandler [1991]. The temperature range of measurement was 298 to 343 K. The gamma(infinity) values at 298.15 K varied from 1.72 (methanol) to 1970 (n-heptanol). ASOG, UNIFAC, modified UNIFAC (Dortmund). modified UNIFAC (Lyngby) group contribution methods could predict gamma(infinity) to within 16.9, 28.8, 23.9 and 31.8 average percent error, respectively, for all systems and temperatures.

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