Dynamics of water-ethanol mixtures studied by light scattering

被引：0
|
作者：
Sato, Maii [1 ]
Ike, Yuji [1 ]
Kano, Jun [1 ]
Kojima, Seiji [1 ]
机构：
[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058571, Japan
来源：
FLOW DYNAMICS | 2006年 / 832卷
关键词：
water; ethanol; brillouin scattering; Raman scattering; OH stretching; hydrogen bond;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Brillouin scattering of water-ethanol binary mixtures have been measured in the temperature range from room temperature to 343 K as a function of ethanol concentration. A maximum appears at 12 ethanol mol% in the sound velocity and at about 50 mol% in the absorption coefficient all at room temperature. Raman scattering of heavy water-ethanol mixtures was also measured at room temperature as a function of concentration. The concentration range from 0100 mol% is divided into three ranges and the behavior of the acoustic properties was discussed with three cluster models; the circular clusters are dominant in the concentration range of 0-12 mol%, layered clusters in the range of 1250 mol%, pure ethanol chain clusters in the range of 50-100 mol% at room temperature. These results are consistent with the concentration variation of OH stretching band of Raman spectra and the results in literatures.
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页码：291 / +
页数：2
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