Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

ABSTRACT

The Henry's constants ( or Henry's Law constants ) and the infinite dilution activity coefficients of propane, propene, butane, isobutane, 1-butene, isobutene, trans-2-butene and 1,3-butadiene in 1-butanol and 2-butanol at temperature range of 250 K to 330 K were measured by a gas stripping method. A rigorous formula for evaluating the Henry's constants from the gas stripping measurements was used for data reduction of these highly volatile mixtures. The accuracy is about 2 % for Henry's constants and 3 % for the estimated infinite dilution activity coefficients. In the evaluation of the infinite dilution activity coefficients, the nonideality of solute can be not neglected especially at higher temperatures. The estimated uncertainty of the infinite dilution activity coefficients includes a 1 % amount for nonideality.