ABSTRACT

Isobaric vapor liquid equilibrium (VLE) data have been measured with a modified Rose Williams still for the binary systems of methanol (1) + diethylamine (2), methanol (1) + N,N-diethylethanolamine (2), and N,N-diethylethanolamine (1) + diethylamine (2) at p = (60.0 and 101.3) kPa. All of the experimental data pass the thermodynamic consistency test by the method of Herington and the point test of Van Ness. The system of methanol + diethylamine (DEA) at two pressures exhibits a maximum temperature azeotrope. The other two systems did not show that behavior. The experimental VLE data were well-correlated with the Wilson and universal quasichemical (UNIQUAC) activity coefficient models, and the average absolute deviations (AAD) of the vapor-phase mole fraction ?y between the experimental and the calculated values for all of the measured systems are less than 0.01.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C4H11N	diethylamine
3	C6H15NO	(diethylamino)ethanol

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	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	3	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	2
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	31
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	31
POMD	1 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	22
POMD	1 3	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	22
POMD	3 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	20
POMD	3 2	Mole fraction - 3 ; Gas	Mole fraction - 3; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	20

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

Isobaric Vapor Liquid Equilibrium for the Binary Systems of Methanol, Diethylamine, and N,N-Diethylethanolamine at p = (60.0 and 101.3) kPa

Yang, C.[Changsheng], Qin, Z.[Zhenli], Xu, Y., Zeng, H.[Hao], Sun, F.[Feizhong], Zhang, P.[Ping], Feng, Y.[Yang]

ABSTRACT