Densities of the Binary Systems n-Hexane + n-Decane and n-Hexane + n-Hexadecane Up to 60 MPa and 463 K

Abstract

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Density and Compressibility of Multicomponent n-Alkane Mixtures up to 463 K and 140 MPa

“…The excess volume becomes more negative as the pressure decreases and the temperature increases. These trends of the excess volume with temperature and pressure were previously observed in the study of other alkane mixtures, 20,34 n-hexane/n-decane, n-hexane/n-hexadecane and methane/ndecane. The excess volumes determined in this work are plotted in Figure 5 for the systems studied in this work.…”

“…These values were taken from literature, and the literature sources are summarized in Table 8. Regueira et al 34 Dymond et al 35,* Wu et al 36,҂ n-eicosane (373 to 463) (40 to 140) Doolittle 37,* * A correlation and interpolation of the reported density data has been performed in the present work. ҂ Data interpolation was performed by using the modified Tait Equation provided in the reference.…”

Heat capacity and Joule-Thomson coefficient of selected n -alkanes at 0.1 and 10 MPa in broad temperature ranges

“…The uncertainty of water density and heat capacity is a main factor affecting the uncertainty of the heat capacity values reported in this work. The density data for the studied samples were taken from Span and Wagner [43] for n-hexane and n-octane, from Lemmon and Span [44] for n-decane, from Lemmon and Huber [45] for n-dodecane, from Khasanshin and Shchemelev [19] for n-tetradecane and from Regueira et al [46] for nhexadecane. The Cp measurements were programed by means of the Calisto Acquisition software.…”

“…The same density data which were used to obtain the Cp values are used in Eq. 15 to obtain the Joule-Thomson coefficient, that is, densities from Span and Wagner [43] for n-hexane and n-octane, from Lemmon and Span [44] for n-decane, from Lemmon and Huber [45] for n-dodecane, from Khasanshin and Shchemelev [19] for n-tetradecane and from Regueira et al [46] for n-hexadecane. As concerns the isobaric thermal expansion coefficient, the values of this property for the studied n-alkanes were obtained by cubic fitting of the aforementioned literature density data as a function temperature at 0.1 and 10 MPa and subsequent differentiation of the obtained fits with respect to temperature.…”

Characterizing the free volume of ultrahigh molecular weight polyethylene to predict diffusion coefficients in orthopedic liners

“…Diffusant densities were determined by linear extrapolation of densities at various temperatures. [30][31][32][33] Partial pressures were determined using knowledge of the relative flowrates of the individual vapor streams and the saturated vapor pressures calculated by Antoine's coefficients. 34 Predicting diffusion coefficients from free-volume theory…”