ABSTRACT

Liquid-liquid equilibrium (LLE) data of the solubility (binodal) curves and tie-line end compositions were examined for mixtures of {(water (1) + butyric acid (2) + diethyl succinate or diethyl glutarate or diethyl adipate (3)} at 298.2 K and 101.3+-0.7 kPa. The relative mutual solubility of butyric acid is higher in the diethyl succinate or diethyl glutarate or diethyl adipate layers than water layers. The consistency of the experimental tie-lines was determined through the Othmer-Tobias correlation equation. The LLE data were correlated with NRTL model, indicating the reliability of the NRTL equations for these ternary systems. The best results were achieved with the NRTL equation, using non-randomness parameter (alpha = 0.3) for the correlation. Distribution coefficients and separation factors were measured to evaluate the extracting capability of the solvents.

Compounds

#	Formula	Name
1	C9H16O4	diethyl glutarate
2	C10H18O4	diethyl hexanedioate
3	H2O	water
4	C4H8O2	butanoic acid
5	C8H14O4	diethyl butanedioate

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	Normal boiling temperature, K ; Liquid			Liquid Gas	Fischer Boiling Piont Apparatus	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	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Normal boiling temperature, K ; Liquid			Liquid Gas	Fischer Boiling Piont Apparatus	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Normal boiling temperature, K ; Liquid			Liquid Gas	Fischer Boiling Piont Apparatus	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Normal boiling temperature, K ; Liquid			Liquid Gas	Fischer Boiling Piont Apparatus	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Normal boiling temperature, K ; Liquid			Liquid Gas	Fischer Boiling Piont Apparatus	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4 5 3	Mass fraction - 4 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 4 ; Liquid mixture 2	Mass fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	6
POMD	4 5 3	Mass fraction - 5 ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 5	Titration method	18
POMD	4 1 3	Mass fraction - 4 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 4 ; Liquid mixture 2	Mass fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	5
POMD	4 1 3	Mass fraction - 1 ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 1	Titration method	17
POMD	4 2 3	Mass fraction - 4 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 4 ; Liquid mixture 2	Mass fraction - 3; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	5
POMD	4 2 3	Mass fraction - 2 ; Liquid	Mass fraction - 3; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid Crystal - 2	Titration method	16

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Liquid-liquid equilibria of (water + butyric acid + diethyl succinate or diethyl glutarate or diethyl adipate) ternary systems

Gok, A.[Asli], Kirbaslar, S. I., Uslu, H.[Hasan], Gilani, H. G.

ABSTRACT