| | 1 | Author
| Heinrich-Schramm, W. E. Price, H.-D Lüdemann | Requires cookie* | | | Title
| A  | | | | 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-diffu sion, as seen by a higher AE* 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. | | | |
Reference
| Z. Naturforsch. 50a, 149—154 (1995); received October 5 1994 | | | |
Published
| 1995 | | | |
Keywords
| Binary mixtures, Self diffusion, High pressure | | | |
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| default:Reihe_A/50/ZNA-1995-50a-0149.pdf | | | | Identifier
| ZNA-1995-50a-0149 | | | | Volume
| 50 | |
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