ABSTRACT

Viscosity and surface tension of binary systems of N,N-dimethylformamide DMF with higher 1-alkanols (C8-C10) were measured at atmospheric pressure and four different temperatures over the entire range of mole fraction. The experimental measurements were used to calculate the deviations in viscosity and surface tension. Furthermore, the excess Gibbs free energy of activation, surface enthalpy and surface entropy of the (DMF + 1-alkanols) binary mixtures were determined. In addition, the deviation and excess properties were fitted to the method of Redlich Kister (R K) polynomial. Viscosity data of the binary systems were correlated with three different expressions (Grunberg and Nissan, the three-body, and four-body McAllister). The effects of the chain length of the higher 1-alkanols and temperature were investigated.

Compounds

#	Formula	Name
1	C3H7NO	dimethylformamide
2	C8H18O	octan-1-ol
3	C9H20O	nonan-1-ol
4	C10H22O	decan-1-ol

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	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	4
POMD	1	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	4
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	4
POMD	2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	4
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	4
POMD	3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	4
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	4
POMD	4	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	4
POMD	1 2	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	44
POMD	1 2	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	44
POMD	1 3	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	44
POMD	1 3	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	44
POMD	1 4	Viscosity, Pa*s ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid	Concentric cylinders viscometry	44
POMD	1 4	Surface tension liquid-gas, N/m ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid		Liquid Air at 1 atmosphere	Wilhelmy plate method	44

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Effect of temperature and chain length on the viscosity and surface tension of binary systems of N,N-dimethylformamide with 1-octanol, 1-nonanol and 1-decanol

Mohammad, A. A.[Abubaker A.], Alkhaldi, K. H. A. E.[Khaled H. A. E.], AlTuwaim, M. S.[Mohammad S.], Al-Jimaz, A. S.[Adel S.]

ABSTRACT