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

Experimental Dynamic Viscosities of 2,3-Dimethylpentane up to 60 MPa and from (303.15 to 353.15) K Using a Rolling-Ball Viscometer

Pensado, A. S.[Alfonso S.], Comunas, M. J. P.[Maria J.P.], Lugo, L.[Luis], Fernandez, J.[Josefa]
J. Chem. Eng. Data 2005, 50, 3, 849-855
ABSTRACT
The main motivation of this work is to verify the reliability of a high-pressure viscosity measurement technique that was recently installed in our laboratory. A total of 2520 experimental measurements of the rolling time have been performed. Hexane and decane were used to calibrate the apparatus, and the dynamic viscosity of heptane has been measured to verify the calibration method. Our results agree with the literature values with average absolute deviations lower than the experimental uncertainty ((2%). In a second step, hexane, heptane, and decane have been used as reference substances, and the calibration has been verified again by determining the dynamic viscosity of toluene. A comparison has been established between the experimental dynamic viscosity measured in this work for toluene and the reference correlation recommended by IUPAC, obtaining an absolute average deviation of 0.9% and a maximum deviation of 2%. Furthermore, 99 density (up to 45 MPa and from 298.15 K to 353.15 K) and 84 dynamic viscosity (up to 60 MPa and at six temperatures ranging from 303.15 K to 353.15 K) measurements of liquid 2,3-dimethylpentane are also reported.
Compounds
# Formula Name
1 C7H16 heptane
2 C7H8 toluene
3 C7H16 2,3-dimethylpentane
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
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Falling or rolling sphere viscometry
  • 84
  • POMD
  • 2
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Falling or rolling sphere viscometry
  • 84
  • POMD
  • 3
  • Viscosity, Pa*s ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Falling or rolling sphere viscometry
  • 84
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • ISOCHOR
  • 99