ABSTRACT

The viscosities of the mixtures 1-hexyl-3-methylimidazolium hexafluorophosphate ([HMIM][PF6])+CO2 and 1-octyl-3-methylimidazolium hexafluorophosphate ([OMIM][PF6])+CO2 were measured with a rolling ball viscometer. The CO2 mole fraction for one mixture ranged up to 0.434 and the other up to 0.447. The viscosities were measured at 293.15 353.15K and 10 20.0 MPa. The experimental uncertainty in viscosity was estimated to be within +-3.0%. The experimental data were compared with McAllister's three-body model, which correlated with the experimental data within average absolute deviations of 5.9 %.

Compounds

#	Formula	Name
1	C10H19F6N2P	1-hexyl-3-methylimidazolium hexafluorophosphate
2	C12H23F6N2P	1-octyl-3-methylimidazolium hexafluorophosphate
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	Phase	Method	#Points
POMD	3 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	60
POMD	3 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Constant-volume piezometry	60
POMD	3 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	48
POMD	3 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid	Constant-volume piezometry	48

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Viscosity of ionic liquid mixtures of 1-alkyl-3-methylimidazolium hexafluorophosphate + CO2

Tomida, D.[Daisuke], Kenmochi, S.[Satoshi], Qiao, K.[Kun], Bao, Q.[Quanxi], Yokoyama, C.[Chiaki]

ABSTRACT