ABSTRACT

The solubility of perfluoropentanoic acid in supercritical carbon dioxide was investigated for a broad range of pressures (10 to 26 MPa) and at three temperatures: 314, 324, and 334 K. A dynamic gravimetric device was used for the high pressure measurements. The solubility ranges from (24.7 +- 0.3) kg*m 3 at 334 K to 10.2 MPa to (103.9 +- 7.7) kg*m 3 at 314 K and 20.1 MPa. Density-based models, notably the dimensionless version of the Adachi-Lu model, fit the experimental data accurately. The latter model was employed to calculate the solubility over a wide range of CO2 densities.

Compounds

#	Formula	Name
1	C5HF9O2	perfluoropentanoic acid
2	C8H16O2	octanoic acid
3	CO2	carbon dioxide

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.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	2 3	Mole fraction - 2 ; Fluid (supercritical or subcritical phases)	Temperature, K; Fluid (supercritical or subcritical phases) Pressure, kPa; Fluid (supercritical or subcritical phases)		Fluid (supercritical or subcritical phases) Liquid	Gravimetric	3
POMD	3 1	Mole fraction - 1 ; Fluid (supercritical or subcritical phases)	Temperature, K; Fluid (supercritical or subcritical phases) Pressure, kPa; Fluid (supercritical or subcritical phases)		Fluid (supercritical or subcritical phases) Liquid	gravimetric	17

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Solubility of Perfluoropentanoic Acid in Supercritical Carbon Dioxide: Measurements and Modeling

Dartiguelongue, A.[Adrien], Leybros, A.[Antoine], Grandjean, A.[Agnes]

ABSTRACT