Liquid Viscosity and Surface Tension of Cyclohexane Between 280 and 473 K by Surface Light Scattering

IF 2.5 4区工程技术 Q3 CHEMISTRY, PHYSICAL

International Journal of Thermophysics Pub Date : 2024-10-28 DOI:10.1007/s10765-024-03453-w

Paul Damp, Yongzhen Sun, Peter S. Schulz, Thomas M. Koller, Andreas P. Fröba

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引用次数: 0

Abstract

The present study provides experimental data for the liquid viscosity and surface tension of cyclohexane at or close to saturation conditions by surface light scattering between (280 and 473) K. By applying the hydrodynamic theory for surface fluctuations at the vapor–liquid phase boundary, which could be verified experimentally, the liquid viscosity and surface tension were determined simultaneously at macroscopic thermodynamic equilibrium with average relative expanded (k = 2) uncertainties of U_r(η′) = 0.020 and U_r(σ) = 0.012. For both properties, the present measurement results agree well with reference values in the literature which are restricted to a maximum temperature of 393 K for viscosity and 337 K for surface tension. The experimental results from this work contribute to an improved database for the viscosity and surface tension of cyclohexane over a wide temperature range from a temperature close to the melting point up to 473 K.

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通过表面光散射测量 280 至 473 K 之间环己烷的液体粘度和表面张力

本研究提供了通过表面光散射在 (280 和 473) K 之间测定环己烷在饱和或接近饱和状态下的液体粘度和表面张力的实验数据。通过应用汽液相界表面波动的流体力学理论（可通过实验验证），同时测定了宏观热力学平衡时的液体粘度和表面张力，其平均相对扩展（k = 2）不确定度为 Ur(η′) = 0.020 和 Ur(σ) = 0.012。对于这两种特性，目前的测量结果与文献中的参考值非常吻合，文献中的参考值仅限于最高温度为 393 K 的粘度和 337 K 的表面张力。这项工作的实验结果有助于改进环己烷粘度和表面张力的数据库，其温度范围很广，从接近熔点的温度一直到 473 K。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Thermophysics 物理-力学

CiteScore

4.10

自引率

9.10%

发文量

179

审稿时长

5 months

期刊介绍： International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.