Acoustical properties of aqueous solutions of urea: Reference data for the ultrasonic spectrometry of liquids

被引:16
作者
Hagen, R [1 ]
Behrends, R [1 ]
Kaatze, U [1 ]
机构
[1] Univ Gottingen, Drittes Phys Inst, D-37073 Gottingen, Germany
关键词
D O I
10.1021/je049971a
中图分类号
O414.1 [热力学];
学科分类号
摘要
The density, sound velocity, and ultrasonic attenuation coefficient of aqueous solutions of urea were measured at temperatures between 10 degreesC and 35 degreesC and at concentrations ranging from 0 to 9 mol/L (equivalent to21.7 mol %) urea. The data are correlated using simple empirical expressions, and the isentropic compressibilities are calculated. These urea solutions provide a favorable set of reference data for acoustical measurements of liquids with sound velocity between 1500 m(.)s(-1) and 1700 m(.)s(-1).
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收藏
页码:988 / 991
页数:4
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