ABSTRACT

Liquid liquid equilibria (LLE) of water + acetic acid + dimethyl carbonate were experimentally specified at (298.2, 308.2, and 318.2) K. Each diagram was obtained through specifying binodal curves and tie-lines. The reliability of the experimental tie-line data was calculated by the Othmer Tobias correlation. The nonrandom two-liquid (NRTL) and unified quasichemical activity coefficient (UNIQUAC) models were used to obtain the binary interaction parameters of the experimental tie-line data. However, universal functional (UNIFAC) and modified UNIFAC methods were used as well to predict the phase equilibrium in the system specified from experimental data using the interaction parameters between CH3, OCOO, COOH, and H2O functional groups. Distribution coefficients and separation factors were assessed for the immiscibility region.

Compounds

#	Formula	Name
1	C2H4O2	acetic acid
2	C3H6O3	dimethyl carbonate
3	H2O	water

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 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Distillation	1
POMD	2	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	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Distillation	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Boiling temperature at pressure P, K ; Liquid	Pressure, kPa; Liquid		Liquid Gas	Distillation	1
POMD	1 2 3	Mass fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 3; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	27
POMD	1 2 3	Mass fraction - 1 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mass fraction - 3; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	9
POMD	2 3	Mass fraction - 3 ; Liquid mixture 1	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	3
POMD	2 3	Mass fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Titration method	3

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

Liquid Phase Equilibria of the Water + Acetic Acid + Dimethyl Carbonate Ternary System at Several Temperatures

Ince, E.[Erol], Lalikoglu, M.[Melisa], Constantinescu, D.[Dana]

ABSTRACT