ABSTRACT

New consistent vapor-liquid equilibrium data for the binary systems isobutyl alcohol (IBA) + isobutyl acetate (IBAc) and tert-butyl alcohol TBA) + tert-butyl acetate (TBAc) are reported at 20 and 101.3 kPa. The IBA+ IBAc system, which deviates positively from ideal behavior, can be described as symmetric solution and presents azeotrope at both pressures. The TBA+ TBAc system shows positive deviations from ideal behavior and presents azeotrope only at 20 kPa. The activity coefficients and boiling points of the solutions were correlated with their composition by the Wilson, UNIQUAC, NRTL and Wisniak-Tamir equations.

Compounds

#	Formula	Name
1	C4H10O	2-methyl-1-propanol
2	C6H12O2	2-methylpropyl ethanoate
3	C4H10O	2-methylpropan-2-ol
4	C6H12O2	1,1-dimethylethyl ethanoate

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	VIBTUB:UFactor:4	1
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:8	2
POMD	2	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	VIBTUB:UFactor:4	1
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:8	25
POMD	3	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	VIBTUB:UFactor:4	1
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:8	29
POMD	4	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	VIBTUB:UFactor:4	1
POMD	4	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	EBULLIO:UFactor:8	25
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	44
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Gas	Gas Liquid	CHROM:UFactor:4	44
POMD	3 4	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	45
POMD	3 4	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Pressure, kPa; Gas	Gas Liquid	CHROM:UFactor:4	45

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor-liquid equilibria for the binary systems isobutyl alcohol + isobutyl acetate and tert-butyl alcohol + tert-butyl acetate at 20 and 101.3 kPa

Monton, J. B., Munoz, R., Burguet, M. C., de la Torre, J.

ABSTRACT