ABSTRACT

(Liquid + liquid) equilibrium (LLE) measurements of the solubility (binodal) curves and tie-line end compositions were carried out for {water (1) + lactic acid (2) + octanol, or nonanol, or decanol (3)} at T = 298.15 K and 101.3 +- 0.7 kPa. The relative mutual solubility of lactic acid is higher in the water layers than in the organic layers. The reliability of the experimental tie-line data was confirmed by using the Othmer Tobias correlation. The LLE results for the ternary systems were predicted by UNIFAC method. Distribution coefficients and separation factors were evaluated for the immiscibility region.

Compounds

#	Formula	Name
1	H2O	water
2	C3H6O3	2-hydroxypropanoic acid
3	C8H18O	octan-1-ol
4	C9H20O	nonan-1-ol
5	C10H22O	decan-1-ol

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	Distillation	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	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	Distillation	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	Distillation	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	Distillation	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	2 4 1	Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	21
POMD	2 4 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	6
POMD	2 5 1	Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	26
POMD	2 5 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	6
POMD	2 3 1	Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	27
POMD	2 3 1	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 2	Mass fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	6

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Liquid + liquid) equilibria of (water + lactic acid + alcohol) ternary systems

Sahin, S.[Selin], Kirbaslar, S. I., Bilgin, M.[Mehmet]

ABSTRACT