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

Viscosity of Urea in the Mixture of N,N-Dimethylformamide and Water

Jozwiak, M.[Malgorzata], Tyczynska, M.[Magdalena], Bald, A.[Adam]
J. Chem. Eng. Data 2013, 58, 2, 217-224
ABSTRACT
The viscosity of urea (U) in the mixtures of N,N-dimethylformamide (DMF) and water (H2O) was measured within the temperature range from (293.15 to 308.15) K. The results obtained were used to calculate the dynamic viscosities, ?, of the DMF H2O mixture and urea in aqueous DMF solution. Based on the relative viscosity values calculated, ?r, and Jones Dole s equation, the values and sign of viscosity coefficient B were determined and analyzed on account of the destructive or constructive properties of urea regarding the solvent structure. The data obtained were discussed from the point of view of temperature changes and interactions in solutions.
Compounds
# Formula Name
1 CH4N2O urea
2 C3H7NO dimethylformamide
3 H2O water
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
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 4
  • POMD
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 4
  • POMD
  • 2
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 60
  • POMD
  • 1
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 32
  • POMD
  • 1
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 32
  • POMD
  • 1
  • 2
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Solvent: Mole fraction - 3; Liquid
  • Molality, mol/kg - 1; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Capillary tube (Ostwald; Ubbelohde) method
  • 480