ABSTRACT

To elucidate the properties of binary system of room temperature ionic liquids (RTILs), we have measured and compared the temperature dependence of densities, viscosities, and refractive indices of seven binary RTILs as well as neat RTILs. The observed densities, viscosities, and refractive indices of the binary systems showed intermediate properties between those of two starting RTILs. The values observed for the binary RTILs were only deviated from the values estimated based on the data of neat RTILs (0.5 %), and this deviation depended on both the combination of RTILs and the structures of the cation / anion. These results indicate that the properties of RTILs can be easily tuned by mixing RTILs depend on their applications.

Compounds

#	Formula	Name
1	C9H14F2N2O4S2	1-butylpyridinium bis(fluorosulfonyl)amide
2	C9H14BF4N	1-butylpyridinium tetrafluoroborate
3	C11H20F6N2O4S2	1-methyl-1-propylpiperidinium bis(trifluoromethylsulfonyl)imide
4	C9H20F2N2O4S2	1-methyl-1-propylpiperidinium bis(fluorosulfonyl)imide
5	C9H20F2N2O4S2	1-butyl-1-methylpyrrolidinium bis(fluorosulfonyl)amide
6	C13H20BNO8	1-butyl-1-methylpyrrolidinium bis(oxalato)borate
7	C13H26F6N2O4S2	triethylpentylammonium bis(trifluoromethylsulfonyl)imide
8	C13H26F6NO4PS2	triethyl(pentyl)phosphonium bis((trifluoromethyl)sulfonyl)amide
9	C8H16F6N2O4S2	N,N,N-trimethylpropanaminium bis((trifluoromethyl)sulfonyl)amide
10	C10H18F6N2O4S2	1-methyl-1-propylpyrrolidinium bis[(trifluoromethyl)sulfonyl]imide

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	15
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	11
POMD	6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	11
POMD	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	11
POMD	7	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	7	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	7	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	8	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	9	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	9	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	9	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	10	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	15
POMD	10	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	15
POMD	10	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	15
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	1 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90
POMD	3 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	3 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	3 4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90
POMD	5 6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	81
POMD	5 6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	81
POMD	5 6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	81
POMD	7 8	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	7 8	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	7 8	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 7; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90
POMD	9 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	9 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	9 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90
POMD	9 10	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	9 10	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	9 10	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 9; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90
POMD	4 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	90
POMD	4 5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	90
POMD	4 5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Mole fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	90

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

Densities, Viscosities, and Refractive Indices of Binary Room-Temperature Ionic Liquids with Common Cations/Anions

Seki, Shiro, Serizawa, Nobuyuki, Ono, Shimpei, Takei, Katsuhito, Hayamizu, Kikuko, Tsuzuki, Seiji, Umebayashi, Yasuhiro

ABSTRACT