کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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215418 | 1426244 | 2014 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Liquid density of HFE-7200 and HFE-7500 from T = (283 to 363) K at pressures up to 100 MPa Liquid density of HFE-7200 and HFE-7500 from T = (283 to 363) K at pressures up to 100 MPa](/preview/png/215418.png)
• Liquid densities are reported for HFE-7200 and HFE-7500 at temperatures from (283 to 363) K, pressures up to 100 MPa.
• The expanded uncertainty (k = 2) of density measurement for HFE-7200 and HFE-7500 were 0.04% and 0.03%, respectively.
• Modified Tait equations were correlated with the experimental data.
• The isobaric thermal expansivity and isothermal compressibility of HFE-7200 and HFE-7500 were calculated.
The liquid densities of HFE-7200 (1-ethoxy-1,1,2,2,3,3,4,4,4-nonafluorobutane, CAS Registry Number: 163702-05-4) and HFE-7500 (3-ethoxyperfluoro(2-methylhexane), CAS Registry Number: 297730-93-9) have been measured over the temperature range from (283 to 363) K and pressures up to 100 MPa by using a high pressure vibrating-tube densimeter. R134a has been used as a reference fluid to validate the densimeter. The uncertainty of each obtained datum was estimated, and the maximum expanded uncertainty with a level of confidence of 0.95 (k = 2) of density measurement for HFE-7200 and HFE-7500 were 0.04% and 0.03%, respectively. The measured liquid densities were correlated with the modified Tait equation and the maximum deviation is less than 0.03%. The isothermal compressibility and isobaric thermal expansivity were also calculated.
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Journal: The Journal of Chemical Thermodynamics - Volume 69, February 2014, Pages 36–42