Thermal Diffusion in Mixtures of Alcohols and Aromatic Hydrocarbons
Open Access
- 1 January 1971
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 26 (1) , 48-51
- https://doi.org/10.1515/zna-1971-0110
Abstract
The thermal diffusion factors observed for these systems vary considerably with concentration, and frequently show a change in sign at some concentration. New data on ethanol-toluene mixtures show that the sign and magnitude of the separation of the components in a thermal gradient are also strongly dependent on the mean temperature of the system. These observations, together with earlier ones on similar systems, can be given a semi-quantitative interpretation in terms of a shift in the average degree of association of the alcohol along the temperature gradient.Keywords
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