Isothermal vapor liquid equilibrium data have been measured for the argon + carbon dioxide binary system at 6 temperatures from 233.32 to 299.21K, and at pressures from 1.5 to 14MPa. The triple point temperature of CO2 (216.58 K) is higher than the Ar critical temperature (150.86 K). As a consequence, working at temperatures higher than the triple point temperature of CO2, it is not possible to define the vapor pressure of pure Ar and the vapor liquid equilibrium isotherms will always present a mixture critical point. VLE data have been measured using the static analytic method, taking advantage of two pneumatic capillary samplers (RolsiTM, Armines s patent) designed and developed in the CEP/TEP laboratory. The isothermal P, x, y data are well represented with the Peng Robinson equation of state combined with Mathias Copeman alpha function and theWong Sandler mixing rules involving the NRTL model.
Compounds
#
Formula
Name
1
CO2
carbon dioxide
2
Ar
argon
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.