ABSTRACT

Liquid liquid equilibria (LLE) data for the ternary system of n-butyl acetate + pyrocatechol + water were measured at 101.3 kPa over the temperature range of 298.15 318.15 K. Phase diagrams were obtained by determining the tie-line data. The LLE experimental data for the system were correlated with the nonrandom two-liquid (NRTL) and universal quasichemical (UNIQUAC) models. The average root-mean-square deviations (RMSD) of the NRTL and UNIQUAC models were 0.0114 and 0.0200. Both models correlated the experimental tie-line data successfully, while the correlation of the UNIQUAC model was inferior to that of the NRTL model.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C6H6O2	1,2-benzenediol
3	C6H12O2	butyl ethanoate
4	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	Pycnometric method	1
POMD	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Crystal	Temperature, K; Crystal Pressure, kPa; Crystal		Crystal	Pycnometric method	1
POMD	2	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Pycnometric method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2 3 4	Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 3 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mass fraction - 3; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	32

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

Liquid Liquid Equilibria for the Ternary System n-Butyl Acetate + Pyrocatechol + Water at Different Temperatures at 101.3 kPa

Wang, B.[Baohe], Rong, M.[Mingjie], Wang, P.[Pinpin], Chen, S.[Shuang]

ABSTRACT