ABSTRACT

As an eco-friendly compound from essential oils, 1,8-cineole (cineole, eucalyptol) has the potential to replace the ozone depleting industrial solvents. This paper presents experimental (liquid + liquid) equilibrium (LLE) data for four alcohol water systems containing 1,8-cineole. To evaluate the phase equilibrium properties of 1,8-cineole in aqueous alcohol mixtures, LLE values for the ternary systems (water + methanol or ethanol or 1-propanol or 1-butanol + 1,8-cineole) were determined with a tie-line method at T = 298.15 K under atmospheric pressure. The well-known Hand, Bachman and Othmer Tobias equations were used to test the reliability of the experimental results. The binodal curves and distribution ratios of alcohol in the mixtures are shown and discussed. The experimental LLE values were satisfactorily correlated by the NRTL and UNIQUAC models.

Compounds

#	Formula	Name
1	C10H18O	1,3,3-trimethyl-2-oxabicyclo[2.2.2]octane
2	CH4O	methanol
3	C2H6O	ethanol
4	C3H8O	propan-1-ol
5	H2O	water
6	C4H10O	butan-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	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	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	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	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	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	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2 1 5	Mole fraction - 5 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Mole fraction - 2; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	8
POMD	3 1 5	Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 5; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	9
POMD	4 1 5	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 4 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 5; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	9
POMD	6 1 5	Mole fraction - 6 ; Liquid mixture 1 Mole fraction - 6 ; Liquid mixture 2 Mole fraction - 5 ; Liquid mixture 2	Mole fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	10
POMD	1 5	Mole fraction - 5 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	1 5	Mole fraction - 5 ; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1
POMD	6 5	Mole fraction - 6 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 2 Liquid mixture 1	Chromatography	1
POMD	6 5	Mole fraction - 6 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1		Liquid mixture 1 Liquid mixture 2	Chromatography	1

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

(Liquid + liquid) equilibria of four alcohol-water systems containing 1,8-cineole at T = 298.15 K

Li, H.[Hengde], Feng, Z.[Zhangni], Wan, L.[Li], Huang, C.[Cheng], Zhang, T.[Tianfei], Fang, Y.[Yanxiong]

ABSTRACT