Partial molar volumes of organic solutes in water. XII. Methanol(aq), ethanol(aq), 1-propanol(aq), and 2-propanol(aq) at T= (298 to 573) K and at pressures up to 30 MPa

Volumetric behavior of water–methanol mixtures in the vicinity of the critical region

“…Under sub-critical conditions, the sigmoidal change has been attributed to a liquid-to-gas-phase transition. The standard partial molar volumes of methanol in water obtained at some conditions are in good agreement with the interpolated values from recently reported results [31]. In the vicinity of the critical region, the relative volume change on mixing of water with methanol at lower methanol mole fractions is large and negative, which is in contrast to the large positive change on mixing previously observed for water-benzene mixtures [10].…”

“…Some of the present data have been taken closely enough to be properly extrapolated to x = 0 and provided the following V 0 a values: 53.9 cm 3 mol −1 (523 K, 135 bar), 69.1 cm 3 mol −1 (573 K, 115 bar), 64.9 cm 3 mol −1 (573 K, 200 bar), and 83.6 cm 3 mol −1 (588 K, 137 bar). The values for the first three conditions are in good agreement with interpolated values from recently reported results by Hyncica et al [31], 54.2, 69.2, and 64.5 cm 3 mol −1 , respectively, while a value at 588 K could not be interpolated due to lack of data.…”

Correlation and prediction of thermodynamic properties of nonelectrolytes at infinite dilution in water over very wide temperature and pressure ranges (2000K and 10GPa)

“…Values of V 1 2 =V Ã 1 for aqueous CO 2 , evaluated from EoS (Duan and Zhang, 2006), see text. Alexander and Hill, 1965;Friedman and Scheraga, 1965;Franks and Smith, 1968;Neal and Goring, 1970;Nakajima et al, 1975;Høiland and Vikingstad, 1976;Moriyoshi et al, 1977;Benson and Kiyohara, 1980;Høiland, 1980;Nakagawa et al, 1983;Easteal and Woolf, 1985;Makhatadze and Privalov, 1989;Makhatadze et al, 1990Makhatadze et al, , 1997Ott et al, 1993;Alauddin et al, 1994;Sakurai et al, 1994;Kaulgud et al, 1995;Criss and Wood, 1996;Hynek et al, 1997;Xiao et al, 1997;Degrange, 1998;Hnědkovský et al, 1998;Saleh et al, 1998;Schulte et al, 1999;Origlia and Woolley, 2001;Kukuljan et al, 2003;Hynćica et al, 2004Hynćica et al, , 2006aStříteská et al, 2004;Č enský et al, 2007;Cibulka and Hnědkovský, 2009). Here and in all later cases only data at T > 293 K were used, because results at lower temperatures and atmospheric pressure complicate the dependence (those practically isochoric data demonstrate an appreciable temperature dependence, contrary to data at higher temperatures).…”

Partial molar volumes of organic solutes in water. XVI. Selected aliphatic hydroxyderivatives(aq) at T=(298 to 573)K and at pressures up to 30MPa

“…In our previous papers a group of monohydric alcohols derived from alkanes from methane through butane (methanol, ethanol, 1-propanol, and 2-propanol [1], all isomeric butanols [2]), and polyhydric alcohols derived from ethane (1,2-ethanediol), propane (all propanediols, 1,2,3-propanetriol) [3], and n-butane (1,3-butanediol, 2,3-butanediol, and 1,4-butanediol) [4] have been published. This paper extends the previous study with solutes that largely differ in hydrophilic character.…”