Surface tensions of mixtures at their boiling points

PVT, viscosity, and surface tension of ethanol: New measurements and literature data evaluation

“…The maximum deviation between equation (11) and the DIPPR106 formulation is nearly about 2.5% in the range of the experimental data existing between T = 223 K and the boiling temperature. As revealed in figure 8a, the two curves cross at T = (246, 315, and 438) K. Figure 7a shows that equation DIPPR106 can be taken as the lower limit of experimental data in the most explored range of temperature (280 to 320) K. In this same range, the DIPPR100 equation acts as the upper limit and as the temperature increases the curve from DIPPR100 cross the one resulting from equation (11) at nearly T = 478 K. The present correlation, equation (11) is consistent with the selected experimental data over the entire range of temperature and it usually deviates by no more than ±0.3 mN Á m À1 (see figure 8a) with the exceptions plotted in figure 8b which include partial data of Sudgen [96], Korösi and Kovats [104], and Kalbassi and Biddulph [107]. The data by Ramsay and Shields [87], Sudgen [96] and the values due to Korösi and Kovats [104] referring to the (vapour + liquid) boundary at temperatures above the normal boiling temperature show a good consistency with the air-liquid interface data at temperatures below T b (figures 7b and 8a).…”

“…The parameter C is usually taken as a measure of the ideal glass transition temperature and is roughly (15 to 40) K less than T g . Our values of A, B, and C of equation (9) [87]; w, Ramsay and Aston [88]; h, Descude [89]; , Ritzel [90]; }, Richards and Cooms [93]; N, Bircumshaw [95]; i, Sudgen [96]; ., Hammick and Andrew [97]; d, Trieeshmann [98]; j, Ernst et al [37]; , Smith and Sorg [99]; , Vogel [100]; Ç, Myers and Clever [102]; q, Ross and Patterson [103]; , Korösi and Kovats [104]; È, Strey and Shemeling [105]; , Kalbassi and Bidduph [107]; , Papaioannou and Panayiotou [108]; +, Vásquez et al [109]; , Johans and Suomaleinen [111]; Â, Azizian and Hemmati [112]; g, Calvo et al [91]; j, Morgan and Nedle [92]; , Morgan and Scarlett [94]; Ç, Efremov [101]; , Won et al [49]; w, Kinart et al [110]; È, Belda et al [114]; h, Dilmohamud et al [115]; 4, Sheu and Tu [117]; , Domań ska et al [121]. Partial data selected for fitting: , Sudgen [96]; , Korösi and Kovats [104]; , Kalbassi and Bidduph [107].…”

Modified PT-LJ-SAFT Density Functional Theory

“…The symbols (full squares [52], open squares [53]) represent experimental data, the curves are the values obtained with the PT-LJ-SAFT-DFT approach using the parameter optimized to liquid densities and vapor pressure reported in Table 2. [74], full circles [75], open circles [76], full triangles [77], open triangles [78], full diamonds [79], open diamonds [80], full downwards pointed triangles [81], open downwards pointed triangles [82], full left pointed triangles [83], open left pointed triangles [84], full right pointed triangles [54]). els do unless a non-classical contribution from a renormalization group approach [50] is added.…”

Influence of the Marangoni Effect on Mass Transfer in Inclined Falling Films

“…Addition of ethanol in water can effectively reduce the liquid surface tension, particularly quickly at low concentration (Fig. 1), therefore, desorption of ethanol from water can induce the Marangoni effect 28, 29. The experimental procedures were as follows: first, the liquid phase mass transfer for oxygen desorption from distilled water was measured.…”