ABSTRACT

Excess molar volumes Vm E and kinematic viscosities i have been measured as a function of composition for binary mixtures of dipropylene glycol monobutyl ether and dipropylene glycol tert-butyl ether with 2-pyrrolidinone, N-methyl-2 -pyrrolidinone, N,N-dimethylformamide, and N,N-dimethylacetamide at 298.15 K. In all mixtures, the excess molar volumes are negative across the entire composition range. From the experimental data, the deviation in dynamic viscosity e from axiei had been calculated. Both excess molar volumes and viscosity deviations are fit to a Redlich-Kister-type polynomial equation to estimate the binary coefficient and standard errors. The experimental and calculated quantities were used to analyze the mixing behavior of the components. Equations such as Heric s, Auslaender s, and McAllister s four-body interaction model were used to correlate the kinematic viscosities.

Compounds

#	Formula	Name
1	C3H7NO	dimethylformamide
2	C5H9NO	N-methylpyrrolidone
3	C4H9NO	N,N-dimethylethanamide
4	C4H7NO	2-pyrrolidinone

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	PYCNOM:UFactor:4	1
POMD	1	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:4	1
POMD	2	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:4	1
POMD	3	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	PYCNOM:UFactor:4	1
POMD	4	Viscosity, Pa*s ; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Capillary tube (Ostwald; Ubbelohde) method	1

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

Excess Molar Volumes and Kinematic Viscosities for Binary Mixtures of Dipropylene Glycol Monobutyl Ether and Dipropylene Glycol tert-Butyl Ether with 2-Pyrrolidinone, N-Methyl-2-pyrrolidinone, N,N-Dimethylformamide, and N,N-Dimethylacetamide at 298.15 K

Pal, A.[Amalendu], Kumar, A.[Anil]

ABSTRACT