ABSTRACT

Isobaric vapor liquid equilibrium (VLE) data of the binary system maleic anhydride (MAN) + di-nbutylsebacate (DBS) at 2.67, 5.33 and 8.00 kPa are determined using the ebulliometric method. The saturated vapor pressures of pure DBS are also measured and Antoine constants are obtained. The measured equilibrium temperatures, pressures and feed compositions were used to obtain NRTL parameters and equilibrium liquid and vapor compositions. Moreover, vapor liquid equilibrium data for the binary system are predicted from the universal quasi-chemical functionalgroup activity coefficients (UNIFAC) model. Predicted results are compared with those from the ebulliometric method, and good agreement is found.

Compounds

#	Formula	Name
1	C4H2O3	maleic anhydride
2	C18H34O4	dibutyl decanedioate

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	Normal melting temperature, K ; Crystal		Crystal Liquid Air at 1 atmosphere	VISOBS	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	EBULLIO:UFactor:4	13
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:8	27

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor liquid equilibria of the binary system: Maleic anhydride + di-n-butylsebacate at 2.67, 5.33 and 8.00 kPa

Zhu, R.[Rongjiao], Xu, H.[Hongfei], Dong, Z.[Zeliang], Tian, Y.[Yiling]

ABSTRACT