Thermodynamics Research Center / ThermoML | International Journal of Thermophysics

Density of Methylcyclohexane at Temperatures up to 600 K and Pressures up to 200 MPa

Yoneda, Y., Sato, S., Matsumoto, T., Miyamoto, H.
Int. J. Thermophys. 2017, 38, 7, 106
ABSTRACT
Using a bellows variable volumometer, precise density data were measured for methylcyclohexane, which is expected to be a chemical hydride for transportation and storage of hydrogen. For further development of an accurate equation of state, measurements were taken in the temperature and pressure ranges 410 K to 600 K and 10 MPa to 200 MPa, respectively. The uncertainties (k = 2) were less than 3.5 mK for the temperature measurements, 0.080 MPa for the pressure measurements, and 0.11% for the density measurements. In the region above 100 MPa and 450 K, the uncertainty for the density measurement increased from 0.11% to 0.22%. The data obtained in this study were systematically compared with available experimental data and theoretical values derived from the available equation of state. This comparison indicated that the model needs to be improved.
Compounds
# Formula Name
1 C7H14 methylcyclohexane
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
  • Bellows volumetry
  • 75