ABSTRACT

The densities, viscosities, and conductivities of the ternary solutions [N-EMP]Br (N-ethyl,methyl-piperidinium bromide) + [N-PMP]Br (N-propyl,methyl-piperidinium bromide) + H2O, [N-EMP]Br + [N-BMP]Br (N-butyl,methyl-piperidinium bromide) + H2O, and [N-PMP]Br + [N-BMP]Br + H2O and their binary subsystems at (293.15, 297.15, 303.15, and 308.15) K and atmospheric pressure were measured. The equations for prediction of the density, viscosity, and conductivity of mixed electrolyte solutions were extended to predict the related properties of mixed ionic liquid solutions. The predicted values agree well with the experimental data, indicating that the examined properties of the ternary aqueous solutions of piperidinium-based ILs can well be predicted from the corresponding data of their binary subsystems of equal ionic strength by using these equations. In addition, the equation of Patwardhan and Kumar, Hu's equation, and Young's rule can provide better predictions than the simple equations.

Compounds

#	Formula	Name
1	C8H18BrN	N-ethyl-N-methylpiperidinium bromide
2	C9H20BrN	1-methyl-1-propylpiperidinium bromide
3	C10H22BrN	N-butyl-N-methylpiperidinium bromide
4	H2O	water

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	4 1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	40
POMD	4 1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	40
POMD	4 1	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	40
POMD	4 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	40
POMD	4 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	40
POMD	4 2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	40
POMD	4 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	40
POMD	4 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	40
POMD	4 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	40
POMD	4 1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	4 1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	4 1 2	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	36
POMD	4 1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	4 1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	4 1 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 1; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	36
POMD	4 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	4 2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	4 2 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid Molality, mol/kg - 2; Liquid Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid	Liquid	Direct current cell with electrodes	36

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Prediction of density, viscosity, and conductivity of ternary aqueous solutions of piperidinium-based ILs at different temperatures and atmospheric pressure using the data of their binary subsystems

Chen, Y.-F.[Yu-Fei], Hu, Y.-F.[Yu-Feng], Yang, Z.-Y.[Zhen-Yu], Qi, J.-G.[Jian-Guang], Yin, L.-Y.[Liu-Yi], Zhang, H.-R.[Hai-Rong], Huang, H.-Z.[He-Zhi], Liu, X.-M.[Xu-Ming]

ABSTRACT