ABSTRACT

Liquid-liquid equilibria and liquid-liquid-liquid equilibria were determined for (water + cyclohexylamine + toluene), (water + cyclohexylamine + propylbenzene), (water + cyclohexylamine + heptane), and (water + cyclohexylamine + octane) at temperatures of (298.15, 303.15, and 333.15) K at atmospheric pressure by photometric turbidity titration. The composition of conjugate phases was determined by gas-liquid chromatography or potentiometric titration and Karl Fischer titration. All systems show type I behavior since there is only one binary pair of partial miscible liquids. Surprisingly, the systems (water + cyclohexylamine + heptane) and (water + cyclohexylamine + octane) have a three-phase region in a limited temperature range. The data were predicted with the NRTL and the UNIQUAC models in comparison to the Elliott-Suresh-Donohue equation of state based on binary interaction parameters only.

Compounds

#	Formula	Name
1	H2O	water
2	C6H13N	cyclohexylamine
3	C7H8	toluene
4	C9H12	propylbenzene
5	C7H16	heptane
6	C8H18	octane

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:2	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:2	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:2	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:2	1
POMD	6	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ABBE:monoch:UFactor:2	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	VIBTUB:UFactor:2	1
POMD	2 5 1	Mole fraction - 5 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 2 Mole fraction - 5 ; Liquid mixture 3 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 3	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2 Liquid mixture 3	Chromatography Chromatography Chromatography Chromatography Chromatography Chromatography	3
POMD	2 5 1	Mole fraction - 5 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 5 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mole fraction - 1; Liquid mixture 2	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	7
POMD	2 5 1	Mole fraction - 5 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 1 Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	44
POMD	2 6 1	Mole fraction - 6 ; Liquid mixture 1 Mole fraction - 6 ; Liquid mixture 2 Mole fraction - 6 ; Liquid mixture 3 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 3	Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 3 Liquid mixture 2	Titration method Titration method Titration method Titration method Titration method Titration method	4
POMD	2 6 1	Mole fraction - 6 ; Liquid mixture 1	Temperature, K; Liquid mixture 1 Mole fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	50
POMD	2 6 1	Mole fraction - 6 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 6 ; Liquid mixture 1	Temperature, K; Liquid mixture 2 Mole fraction - 1; Liquid mixture 2	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	5
POMD	3 2 1	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 1 Mole fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method Titration method Titration method	12
POMD	3 2 1	Mole fraction - 3 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 1 Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	55
POMD	4 2 1	Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 4 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 1	Temperature, K; Liquid mixture 2 Mole fraction - 1; Liquid mixture 2	Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Chromatography Chromatography Chromatography	4
POMD	4 2 1	Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 1; Liquid mixture 1 Temperature, K; Liquid mixture 1	Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	16

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

Liquid-Liquid(-Liquid) Equilibria in Ternary Systems of Water + Cyclohexylamine + Aromatic Hydrocarbon (Toluene or Propylbenzene) or Aliphatic Hydrocarbon (Heptane or Octane)

Klauck, M.[Mandy], Grenner, A.[Andreas], Schmelzer, J.[Juergen]

ABSTRACT