ABSTRACT

In this contribution we have determined densities and kinematic viscosities at atmospheric pressure and four temperatures, T = (293.15, 303.15, 313.15 and 323.15) K for six binary systems formed by three pyridinium-based ionic liquids (1-butylpyridinium tetrafluoroborate, 1-butyl-3-methylpyridinium tetrafluoroborate, or 1-butyl-4-methylpyridinium tetrafluoroborate) and two alkanols (methanol or ethanol). Kinematic viscosities were fitted using a four-body McAllister equation. From experimental densities and kinematic viscosities, absolute viscosities and viscosity deviations were calculated. The viscosity deviations for all systems are negative over the entire composition and temperature ranges. This behavior can be justified by the weakening of the interactions in the pure components during the mixing process.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C2H6O	ethanol
3	C9H14BF4N	1-butylpyridinium tetrafluoroborate
4	C10H16BF4N	1-butyl-3-methylpyridinium tetrafluoroborate
5	C10H16BF4N	1-butyl-4-methylpyridinium tetrafluoroborate

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	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	4
POMD	1 3	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	48
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	2 3	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	36
POMD	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	1 4	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	48
POMD	1 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	2 4	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	48
POMD	2 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	1 5	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	48
POMD	1 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48
POMD	2 5	Kinematic viscosity, m2/s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	CAPTUB:UFactor:2	48
POMD	2 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	48

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

Viscosimetric Study of Binary Mixtures Containing Pyridinium-Based Ionic Liquids and Alkanols

Garcia-Mardones, M.[Monica], Gascon, I.[Ignacio], Lopez, M. C., Royo, F. M.[Felix M.], Lafuente, C.[Carlos]

ABSTRACT