A study of the volumetric and phase behavior of binary systems. Part III. P‐V‐T‐x data and second virial coefficients of propane‐perfluorocyclobutane mixtures

Abstract

P‐V‐T‐x data for the propane‐perfluorocyclobutane system are reported in this paper. The data cover a temperature range from 329.4 to 397.7°K and a pressure range from 60 to 6920 kPa. The low pressure compressibility measurements were used to determine second virial coefficients of pure propane and pure perfluorocyclobutane and for seven of their mixtures. The prediction of second virial coefficients using an extended corresponding states principle is also reported. Excellent predictions of the second virial coefficients of both pure components and mixtures have been obtained using, in the case of mixtures, a binary interaction coefficient obtained from a study of the critical states of the system.

Intermolecular potential energy surface and thermophysical properties of propane

“…4, the values for the second virial coefficient calculated semiclassically using the adjusted potential function, B QFH 2,adj , are compared with values calculated semiclassically using the unadjusted potential function, B QFH 2,unadj , and classically using the adjusted one, B cl 2,adj , as well as with selected experimental data [44][45][46][47][48][49][50][51] and values derived from the current reference equation of state (EOS) of Lemmon et al 52 The experimental values of Trusler et al 50 and of Glos et al 51 at 300 K were used as reference for the adjustment of the analytical potential function described in Sec. II C, which lowers the calculated value of the second virial coefficient at this temperature from 347.0 cm 3 mol 1 to 384.8 cm 3 mol 1 .…”

Thermodynamic Properties of Propane. III. A Reference Equation of State for Temperatures from the Melting Line to 650 K and Pressures up to 1000 MPa

“…Since the identification of propane in 1910 by Dr. Walter O. Snelling at the U.S. Bureau of Mines, many experimental studies of the thermodynamic properties of propane have been reported, e.g., p ρ T properties, saturation properties, critical parameters, heat capacities, speeds of sound, second virial coefficients, and ideal gas heat capacities (see refs − ...…”

“…Numerous experimental studies have been carried out over the full temperature and pressure range of nearly all applications. In the thermodynamics arena, experimental data are available for density, vapor pressure, speed of sound, virial coefficients, heat capacities, enthalpies, and enthalpies of vaporization as given in refs to …”