Abstract
Densities of aqueous solutions of 2,2,2-trifluoroethanol, 2,2,3,3-tetranuoropropanol, and 2,2,3,3,3-pentanuoropropanol have been measured with a vibrating-tube densitometer. Measurements were performed at temperatures of 298 and 323 K and at pressures up to 80 MPa with an estimated uncertainty of ±0.2 %. Molar volumes obtained for these mixtures are correlated with pressure by the Tait equation within the experimental uncertainty. Excess molar volume, isothermal compressibility, and partial molar volume of these mixtures are determined in terms of this correlation equation and compared with those of the aqueous solutions of hydrocarbon alcohols. Composition dependence of partial molar volume is discussed in comparison with that of Raman spectroscopic data.
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Matsuo, S., Yamamoto, R., Kubota, H. et al. Volumetric properties of mixtures of fluoroalcohols and water at high pressures. Int J Thermophys 15, 245–259 (1994). https://doi.org/10.1007/BF01441585
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DOI: https://doi.org/10.1007/BF01441585