Determination of the soret coefficient based on the separation of mixtures of organic liquids in a thermogravitational column

Abstract

The technique of the direct determination of the Soret coefficient based on the results of separating binary mixtures of organic liquids in a thermogravitational column has been developed. The criterial equations that describe the separation of mixtures in an unsteady state have been obtained. A comparison of the calculated values of the Soret coefficient with the experimental data obtained by the results of separation in horizontal cells has been presented. The satisfactory agreement of the results has been noted.