ABSTRACT

The densities and viscosities of ternary mixtures of N,N -salicylidenephenylenediamine Schiff base (Salophen) + ionic liquid + N,N-dimethylformamide (DMF) have been determined at 298.15 K and at atmospheric pressure. The ionic liquids were: 1-propyl-3-methylimidazolium bromide ([C3mIm][Br]), 1-butyl-3- methylimidazolium bromide ([C4mIm][Br]), 1-pentyl-3-methylimidazolium bromide ([C5mIm][Br]), and 1-hexyl-3-methylimidazolium bromide ([C6mIm][Br]). These data have been used to calculate the standard partial molar volumes, V. 0 , transfer partial molar volumes, centstrV. 0 , and viscosity B-coefficients for the investigated mixtures. An increase in concentration and alkyl chain length of ionic liquid results in a decreasing trend in the calculated volumetric and viscometric parameters. All of these parameters were used to interpret the effect of ionic liquids on the nonaqueous solutions of Salophen Schiff base and solute.solvent interactions occurring between the various components.

Compounds

#	Formula	Name
1	C3H7NO	dimethylformamide
2	C20H16N2O2	2,2'-[1,2-phenylenebis(nitrilomethylidyne)]bis-phenol
3	C8H15BrN2	1-butyl-3-methylimidazolium bromide
4	C7H13BrN2	1-methyl-3-propylimidazolium bromide
5	C9H17BrN2	1-pentyl-3-methylimidazolium bromide
6	C10H19BrN2	3-hexyl-1-methyl-1H-imidazolium 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	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid		Liquid	Vibrating tube method	1
POMD	1 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	3
POMD	1 2	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	9
POMD	1 2	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	9
POMD	1 4	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 4; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	3
POMD	1 5	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 5; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	3
POMD	1 6	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	3
POMD	1 2 3	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 3; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	27
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 3; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	30
POMD	1 2 4	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 4; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	36
POMD	1 2 4	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 4; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	40
POMD	1 2 5	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 5; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	27
POMD	1 2 5	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 5; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	30
POMD	1 2 6	Viscosity, Pa*s ; Liquid	Molality, mol/kg - 6; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	27
POMD	1 2 6	Mass density, kg/m3 ; Liquid	Molality, mol/kg - 6; Liquid Solvent: Molality, mol/kg - 2; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	30

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

Thermodynamic Properties of Salophen Schiff Base + Ionic Liquid ([CnmIm][Br]) + Dimethylformamide Ternary Mixtures at 298.15 K

Shekaari, H.[Hemayat], Bezaatpour, A.[Abolfazl], Elhami, R.[Rasoul]

ABSTRACT