Measurement of the Speed of Sound in Methyl Caprylate from 298.22 to 608.38 K and up to 10 MPa,Journal of Chemical & Engineering Data

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Measurement of the Speed of Sound in Methyl Caprylate from 298.22 to 608.38 K and up to 10 MPa
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2019-07-09 , DOI: 10.1021/acs.jced.9b00371
Junshuai Chen ₁ , Ying Zhang ₁ , Taotao Zhan ₁ , Qi Zhou ₁ , Tian Lan ₁ , Maogang He ₁

Affiliation

Methyl caprylate is expected to be one of the main components of biodiesel due to its high cetane number and good oxidation stability. Details of the experimental speeds of sound in methyl caprylate are very scarce, especially in high-temperature regions. Therefore, the speed of sound in liquid methyl caprylate was measured by the Brillouin light scattering method in the temperature range of 298.22–608.38 K and at pressures of up to 10 MPa. The relative expanded uncertainty of the speed of sound is estimated to be less than 1.32% (coverage factor k = 2). The variation of the speed of sound with the temperature and pressure was analyzed. Besides, the correlation for the speed of sound as a function of temperature and pressure is presented based on the experimental data. The absolute average of relative deviation between the experimental data and the calculated results is 0.29%.

中文翻译：

测量辛酸甲酯在298.22至608.38 K至10 MPa之间的声速

辛酸甲酯由于十六烷值高和良好的氧化稳定性，有望成为生物柴油的主要成分之一。辛酸甲酯中声音的实验速度的细节非常稀少，尤其是在高温地区。因此，液体辛酸甲酯中的声速通过布里渊光散射法在298.22–608.38 K的温度范围内和最高10 MPa的压力下测量。声速的相对扩展不确定度估计小于1.32％（覆盖因子k= 2）。分析了声速随温度和压力的变化。此外，根据实验数据，还给出了声速与温度和压力的关系。实验数据与计算结果之间的相对偏差的绝对平均值为0.29％。

更新日期：2019-07-10

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