(p, V-m, T) measurements of (octane plus benzene) at temperatures from (298.15 to 328.15) K and at pressures up to 40 MPa

作者：Moravkova L; Wagner Z; Linek J^*

来源：Journal of Chemical Thermodynamics, 2008, 40(4): 607-617.

DOI：10.1016/j.jct.2007.11.009

• octane
• benzene
• binary mixture
• density
• isothermal compressibility
• excess volume
• high-pressure
• elevated temperature

The densities of (octane + benzene) were measured at elevated pressures (0.1 to 40) MPa at four temperatures over the range (298.15 to 328.15) K with a high-pressure apparatus. The high-pressure density data were fitted to the Tait equation and the isothermal compressibilities were calculated with a novel computation procedure with the aid of this equation. The low- and high-pressure values of excess molar volume V-m(E) calculated from the density data show that the deviations from ideal behaviour in the system are practically independent of temperature and decreases slightly as the pressure is raised. The V-m(E) data were fitted to the fourth-order Redlich-Kister equation, with the maximum likelihood principle being applied for the determination of the adjustable parameters.

• 出版日期2008-4