ABSTRACT

Imidazolium-based ionic liquids have been widely investigated in biofuels process. In this work, the experimental densities and viscosities of binary mixtures of IL, 1-octyl-3-methylimidazolium chloride, with aprotic co-solvents (i.e. N,N-dimethylacetamide, N,N-dimethylformamide, dimethyl sulfoxide and pyridine) were studied in the temperatures ranging from (303.15 to 353.15) K at atmospheric pressure. The Vogel-Fulcher-Tammann equation is used to correlate the viscosity data. Toward further understanding the influences of co-solvents on the properties of IL, the excess properties of density and viscosity deviations are calculated as well as the energy barrier. The effects of co-solvents on the density and viscosity are discussed

Compounds

#	Formula	Name
1	C12H23ClN2	1-methyl-3-octylimidazolium chloride
2	C4H9NO	N,N-dimethylethanamide
3	C3H7NO	dimethylformamide
4	C2H6OS	dimethyl sulfoxide
5	C5H5N	pyridine

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	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	11
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	11
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	11
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	11
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	11
POMD	2 1	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	99
POMD	2 1	Viscosity, Pa*s ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	99
POMD	3 1	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	99
POMD	3 1	Viscosity, Pa*s ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	99
POMD	4 1	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	99
POMD	4 1	Viscosity, Pa*s ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	99
POMD	5 1	Mass density, kg/m3 ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	99
POMD	5 1	Viscosity, Pa*s ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	99

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

Influence of Aprotic Cosolvents on the Thermophysical Properties of Imidazolium-Based Ionic Liquid

Yang, F.[Fuxin], Ma, Q.[Qian], Wang, X.[Xiaopo], Liu, Z.[Zhigang]

ABSTRACT