ISSN:
1089-7690
Quelle:
AIP Digital Archive
Thema:
Physik
,
Chemie und Pharmazie
Notizen:
By the use of the time domain reflectometry method dielectric measurements were carried out first on methanol mixtures with ethanol and 1-propanol, and second, water mixtures with methanol, ethanol and 1-propanol in the frequency range 10 MHz–20 GHz. The first mixtures show a Debye relaxation and logarithm of the relaxation time is given by a linear function of the mole fraction of methanol. These mixtures have the same chainlike cluster of pure alcohol. The second mixtures show the same trend of the relaxation time in a region 0≤xw〈0.83, where xw is the mole fraction of water. In a region 0.83〈xw≤1.0, we observe an entirely different behavior, which indicates that the cluster of pure water appears for xw〉0.83 and that the cluster must be cyclic, consisting of six molecules.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.461546
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