ABSTRACT

To probe the effect of ionic liquid structure on the thermophysical properties of aqueous d-xylose solutions, density and viscosity measurements were carried out at 298.15 K for ternary solutions comprising d-xylose and an ionic liquid {1-hexyl-3-methylimidazolium bromide ([HMIm]Br), 1-octyl-3-methylimidazolium bromide ([OMIm]Br), and 1-decyl-3-methylimidazoliume bromide ([DMIm]Br)} in aqueous medium. These data have been used to calculate some important thermophysical properties including standard partial molar volumes (V0), viscosity B-coefficients (using the Jones Dole equation), and free energy of activation per mole of solvent (?micro10?) and solute (?micro20?) from Feakin s transition state theory. It was observed that all the parameters increase with increasing both the concentration and the alkyl chain length of the imidazolium ring of the ionic liquids. These quantities have been utilized to rationalize structural interactions and the hydration behavior of d-xylose.

Compounds

#	Formula	Name
1	C5H10O5	D-xylose
2	H2O	water
3	C10H19BrN2	3-hexyl-1-methyl-1H-imidazolium bromide
4	C12H23BrN2	1-methyl-3-octylimidazolium bromide
5	C14H27BrN2	1-decyl-3-methylimidazolium bromide

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	2 3	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	2 4	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	2 5	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	4
POMD	1 2	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	8
POMD	1 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	7
POMD	1 2 3	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	40
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	36
POMD	1 2 4	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	39
POMD	1 2 4	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 4; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	35
POMD	1 2 5	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	40
POMD	1 2 5	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 1; Liquid Solvent: Molality, mol/kg - 5; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Vibrating tube method	36

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

Density and Viscosity in Ternary d-Xylose + Ionic Liquid (1-Alkyl-3-methylimidazolium Bromide) + Water Solutions at 298.15 K

Shekaari, H.[Hemayat], Kazempour, A.[Amir]

ABSTRACT