HEINRICHSCHRAMM, A and PRICE, WE and LUDEMANN, HD (1995) P,T-DEPENDENCE OF SELF-DIFFUSION IN MIXTURES OF HEXANE/ETHANOL AND HEXANE/DIMETHYLETHER. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 50 (2-3). pp. 149-154. ISSN 0932-0784,
Full text not available from this repository.Abstract
Self-diffusion in ethanol/hexane and dimethylether/hexane mixtures of various compositions has been measured at 215-350 K and up to 200 MPa. Qualitative analysis of the results indicates that, as expected, hydrogen bonding retards the self-diffusion of ethanol in the mixture, especially at the low temperatures. Dimethylether shows a slight effect of dipole-dipole interactions on the self-diffusion, as seen by a higher Delta E(not equal) value than for the alkane. However there is no significant difference in the pressure dependence for both mixtures. This is shown by considering the ratio of the two diffusion coefficients, which suggests that, contrary to what is observed for pure alcohols, pressure has little effect upon the hydrogen bonding of ethanol in the mixture. In additon, there is surprisingly little concentration dependence on the ratios for either mixture.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MOLECULAR-DYNAMICS; TEMPERATURE-DEPENDENCE; PRESSURE; LIQUIDS; DENSITY; FLUID; BINARY MIXTURES; SELF DIFFUSION; HIGH PRESSURE |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52784 |
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