Structures of water and primary alcohol studied by microwave dielectric analyses

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Abstract
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 0.830.83 and that the cluster must be cyclic, consisting of six molecules.