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Dielectric Relaxation in Glycerol, Propylene Glycol, and n-Propanol
Abstract
Complex dielectric constants have been measured at frequencies from below 20 c/s to 5 mc/s over the temperature range −40° to −75°C in glycerol, −45° to −90° in propylene glycol, and −80° to −140° in n-propanol. The results for n-propanol are described by the Debye equation, but the values for the other two require a modified equation corresponding to a broader range of dispersion at higher frequencies. In all three liquids, evidence is found for a second dispersion region at still higher frequencies, which accounts for much of the difference between the radio frequency and optical dielectric constant. The relaxation times are quantitatively described over wide ranges by an empirical rate equation of a form which also fits viscosity data. The significance of the various results is discussed.
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Citations
Cited by
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Elliott, S. R. (1987) · Advances in Physics · doi:10.1080/00018738700101971 · Cited by 2,364
Dynamic compressibility of air in porous structures at audible frequencies
Lafarge, D., Lemarinier, P., Allard, J. F., & Tarnow, V. (1997) · The Journal of the Acoustical Society of America · doi:10.1121/1.419690 · Cited by 649
Terahertz conductivity of thin gold films at the metal-insulator percolation transition
Walther, M., Cooke, D. G., Sherstan, C., Hajar, M., Freeman, M. R., & Hegmann, F. A. (2007) · Physical Review B · doi:10.1103/physrevb.76.125408 · Cited by 472
Relaxation dynamics in plastic crystals
Brand, R., Lunkenheimer, P., & Loidl, A. (2002) · The Journal of Chemical Physics · doi:10.1063/1.1477186 · Cited by 337
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Huang, D., & McKenna, G. B. (2001) · The Journal of Chemical Physics · doi:10.1063/1.1348029 · Cited by 310
Metadata
- Authors
- Davidson, D. W., & Cole, R. H.
- Venue
- The Journal of Chemical Physics
- Publisher
- AIP Publishing
- Published
- 1951-12-01
- Volume
- 19
- Issue
- 12
- Pages
- 1484-1490
- ISSN
- 0021-9606 (ISSN-L)
- 1089-7690
- OpenAlex
- W2013368541
- Cited by
- 1,897
- References
- 0
- FWCI
- 9.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Davidson, D. W., & Cole, R. H. (1951). Dielectric Relaxation in Glycerol, Propylene Glycol, and n-Propanol. The Journal of Chemical Physics. https://doi.org/10.1063/1.1748105
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