Volumetric study of the mixtures n-hexane + isomeric chlorobutane: experimental characterization and volume translated Peng-Robinson predictions.
The pρTx behavior of the binary mixtures n-hexane + isomeric chlorobutane has been studied over the whole composition range at temperatures between 283.15 and 323.15 K and pressures from 0.1 to 65.0 MPa. Experimental densities have been used to obtain different excess properties: excess molar volume, excess isobaric expansibility, excess isothermal compressibility, and excess internal pressure. These excess properties have been analyzed in terms of molecular interactions and structural effects. Finally, experimental densities of the binary mixtures have been compared with the predictions of the volume translated Peng-Robinson (VTPR) model. The overall average deviation between experimental and calculated densities is 0.00427 g·cm(-3), which can be considered reasonably good predictions.
Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009 Zaragoza, Spain.
Hernando
H
Guerrero
Pilar
P
Cea
Ignacio
I
Gascón
Félix M
FM
Royo
Carlos
C
Lafuente