ABSTRACT

Phase equilibrium data were measured for the binary systems of n-pentane + cyclohexane at (293.20, 298.17 and 303.17) K and 1-hexene + 2-propanol at (293.18, 303.17 and 313.16) K. The experimental measurements were conducted using a static-synthetic total pressure apparatus. The overall compositional data (T-P-z) were converted to the co-existing phases at equilibrium (T-P-x-y) using material balances and thermodynamic models. The thermodynamic models followed the combined method featuring either the Wilson or NonRandom Two-Liquid activity coefficient models, and the Ideal Gas Law. The models provided an excellent fit to the experimental data. The binary system of 1-hexene + 2propanol exhibited positive deviation from Raoult's law resulting in the formation of a homogeneous azeotrope for the all the measured isotherms.

Compounds

#	Formula	Name
1	C5H12	pentane
2	C6H12	cyclohexane
3	C6H12	hex-1-ene
4	C3H8O	propan-2-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	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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	8
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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	8
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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	8
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	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	8
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Liquid Gas	Closed cell (Static) method	62
POMD	3 4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Liquid Gas	Closed cell (Static) method	64

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

Total Pressure Phase Equilibrium Measurements for the Binary Systems of n-Pentane + Cyclohexane and 1-Hexene + 2-Propanol

Naicker, Sivanna, Nelson, Wayne Michael, Naidoo, Paramespri, Ramjugernath, Deresh

ABSTRACT