ABSTRACT

Densities and viscosities of the ternary system (ethanol + methylbenzene + 2-methyl-2-propanol) and its binary subsystems were measured at T = 298.15 and 318.15 K and atmospheric pressure. Densities were determined using a vibrating-tube densimeter. Viscosities were found with an automatic microviscometer based on the rolling ball principle. From the experimental data, the excess molar volumes (VE) and deviations in viscosity (?) were derived. The binary VE and ? data were correlated with the Redlich Kister equation. The ternary VE and ? data were fitted to the equation based on Cibulka and the equation of Singh et al., respectively. The values of VE and ? were used to discuss the nature of mixing behaviors for the mixtures, and leading to these excess values is perhaps due to the complex formation and/or accommodation between molecules. To describe the ternary system, several mixtures with specially designated concentrations of 2-methyl-2-propanol were considered.

Compounds

#	Formula	Name
1	C2H6O	ethanol
2	C4H10O	2-methylpropan-2-ol
3	C7H8	toluene

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	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	2
POMD	2	Mass density, kg/m3 ; Metastable liquid	Temperature, K; Metastable liquid	Pressure, kPa; Metastable liquid	Metastable liquid	Vibrating tube method	2
POMD	2	Viscosity, Pa*s ; Metastable liquid	Temperature, K; Metastable liquid	Pressure, kPa; Metastable liquid	Metastable liquid	Falling or rolling sphere viscometry	2
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	2
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	2
POMD	1 2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	148
POMD	1 2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	148
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	18
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	18
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	22
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	22
POMD	2 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Vibrating tube method	18
POMD	2 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid	Falling or rolling sphere viscometry	18

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

Densities, Viscosities, and Correlations for the Ternary System of Ethanol + Methylbenzene + 2-Methyl-2-propanol and Its Binary Subsystems at T = 298.15 and 318.15 K

Lai, G.-H.[Guan-Hong], Tu, C.-H.[Chein-Hsiun]

ABSTRACT