| Title
| - Henry's Law Constants and Infinite Dilution Activity Coefficients of Propane,Propene, Butane, 2-Methylpropane, 1-Butene, 2-Methylpropene, trans-2-Butene,cis-2-Butene, 1,3-Butadiene, Dimethylether, Chloroethane, 1,1-Difluoroethane, andHexane in Tetrahydropyran
|
| Abstract
| - Henry's law constants and infinite dilution activity coefficients of propane, propene, butane, 2-methylpropane,1-butene, 2-methylpropene, trans-2-butene, cis-2-butene, 1,3-butadiene, dimethylether, chloroethane, 1,1-difluoroethane, and hexane in tetrahydropyran in the temperature range of (250 to 330) K were measured by agas stripping method, and partial molar excess enthalpies and entropies were evaluated from the activity coefficients.A rigorous formula for evaluating the Henry's law constants from the gas stripping measurements was used forthese highly volatile mixtures. The estimated uncertainties are about 2 % for the Henry's law constants and 3 %for the infinite dilution activity coefficients. The Henry's law constants followed the order of the increasingHenry's law constant with decreases in the normal boiling point temperature of the solutes except for polar solutes.The partial molar excess entropies and enthalpies of the solutes at infinite dilution in tetrahydropyran are smallerthan those in benzene. These excess properties of unsaturated hydrocarbons in tetrahydropyran are smaller thanthose of saturated hydrocarbons.
|
