Standard Molar Volumes and Heat Capacities of Aqueous Solutions of Trifluoromethanesulfonic Acid at Temperatures up to 573 K and Pressures to 30 MPa
- 122 Downloads
Densities and heat capacities of dilute aqueous solutions (0.025 to 0.4 mol⋅kg−1) of trifluoromethanesulfonic acid (triflic acid) were measured with original high-temperature, high-pressure instruments at temperatures and pressures up to 574 K and 31 MPa, respectively. Standard molar volumes and standard molar heat capacities were obtained via extrapolation of the apparent molar properties to infinite dilution. The evolution of these standard derivative properties of triflic acid with temperature and pressure is qualitatively compared with that of other acids of different strengths.
KeywordsDensity Heat capacity Apparent molar volume Apparent molar heat capacity Standard molar volume Standard molar heat capacity Trifluoromethanesulfonic acid Triflic acid Dilute solution
Unable to display preview. Download preview PDF.
- 4.Hill, P.: A unified fundamental equation for the thermodynamic properties of H2O. J. Phys. Chem. Ref. Data 19, 1233–1274 (1990) Google Scholar
- 8.Majer, V., Sedlbauer, J., Wood, R.H.: Calculation of standard thermodynamic properties of aqueous electrolytes and nonelectrolytes. In: Palmer, D.A., Harvey, A.H., Fernandez-Prini, R. (eds.) Aqueous Systems at Elevated Temperatures and Pressures; Physical Chemistry in Water, Steam and Hydrothermal Solutions, pp. 99–144. Elsevier, Amsterdam (2004) CrossRefGoogle Scholar
- 12.Anisimov, M.A., Sengers, J.V., Levelt Sengers, J.M.V.: Near-critical behaviour in aqueous systems. In: Palmer, D.A., Harvey, A.H., Fernandez-Prini, R. (eds.) Aqueous Systems at Elevated Temperatures and Pressures; Physical Chemistry in Water, Steam and Hydrothermal Solutions, pp. 29–72. Elsevier, Amsterdam (2004) CrossRefGoogle Scholar