ABSTRACT

The thermophysical delineation of four diol (Glycerol, 1, 2 Butane diol, 1, 6 Hexane diol, Ethane diol) based deep eutectic solvents (DES) were investigated in temperature range of 273 K to 323 K at atmospheric pressure. The homogenous mixture was prepared with quaternary ammonium salt and diols respectively at an identical molar ratio of 1:1 (HBA: HBD). Density and viscosity have negative response with increasing temperature. Conductivity and excess molar volume ratio increase at elevated temperature. The results obtained were correlated with linear model equations. Liquid-liquid equilibrium of ternary mixture formed with PEG (6000) + Na2CO3 + DES was measured and correlated with merchuk equation. It is inferred from the data that molecular weight and complex molecular nature of HBD have a positive influence on physicochemical properties of DES and its Biphasic separation.

Compounds

#	Formula	Name
1	C10H16ClN	trimethylbenzylammonium chloride
2	CNa2O3	sodium carbonate
3	C4H10O2	1,2-butanediol
4	C6H14O2	1,6-hexanediol
5	C3H8O3	glycerol
6	C2H6O2	1,2-ethanediol

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 ; Crystal	Temperature, K; Crystal Pressure, kPa; Crystal		Crystal	Vibrating tube method	1
POMD	2	Mass density, kg/m3 ; Crystal	Temperature, K; Crystal Pressure, kPa; Crystal		Crystal	Vibrating tube method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Vibrating tube method	7
POMD	1 6	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Concentric cylinders viscometry	6
POMD	1 6	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Alternating current cell with electrodes	6
POMD	1 6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Standard Abbe refractometry	7
POMD	1 5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Vibrating tube method	7
POMD	1 5	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Concentric cylinders viscometry	6
POMD	1 5	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Alternating current cell with electrodes	6
POMD	1 5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Standard Abbe refractometry	7
POMD	1 4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Vibrating tube method	7
POMD	1 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Concentric cylinders viscometry	6
POMD	1 4	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Alternating current cell with electrodes	6
POMD	1 4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Standard Abbe refractometry	7
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Vibrating tube method	7
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Concentric cylinders viscometry	6
POMD	1 3	Electrical conductivity, S/m ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Alternating current cell with electrodes	6
POMD	1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid Mole fraction - 1; Liquid	Liquid	Standard Abbe refractometry	7

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

Thermophysical and Molar Volume Aberration of Amphiphilic Eutectic Mix of Bivalent Diols and Ammonium-Ionic Liquid

Balaraman, H. B.[Harish Babu], Rathnasamy, S. K.[Senthil Kumar]

ABSTRACT