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

Thermal Diffusivity of Methanol to a Pressure of 5 GPa

Abramson, E. H.[Evan H.], Brown, J. M.
J. Chem. Eng. Data 2017, 62, 7, 2128-2131
ABSTRACT
Thermal diffusivities of methanol have been measured, using transient optical gratings, at 26 deg C, up to a pressure of 5 GPa; together with previously reported measurements of thermal effusivities, they are used to estimate values of methanol s specific heat and thermal conductivity to a pressure of 8 GPa. At lower pressures, the calculated quantities compare favorably with a published equation-of-state and a separate formulation for conductivity. Use of diffusivities in combination with effusivities is of particular interest, as both can be measured with optical techniques applicable to the high-pressure, diamond-anvil cell. Such experiments thus afford an experimental path to the determination of specific heats and thermal conductivities at the high compressions achievable with this experimental tool.
Compounds
# Formula Name
1 CH4O methanol
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
  • Thermal diffusivity, m2/s ; Liquid
  • Pressure, kPa; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Optical interferometry
  • 14
  • POMD
  • 1
  • Thermal diffusivity, m2/s ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Optical interferometry
  • 1