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

Speed of sound of oxygen in supercritical states up to 500 K and 100 MPa

Dubberke, F. H.[Frithjof H.], Riepold, M.[Markus], Baumhogger, E.[Elmar], Vrabec, J.[Jadran]
J. Chem. Eng. Data 2016, 61, 4, 1632-1636
ABSTRACT
Oxygen is the second-most abundant element in the earth's atmosphere and plays an important role in various engineering applications. The precise knowledge of its thermophysical properties is thus important. As a fully fledged thermodynamic property, the speed of sound substantially contributes to the development and parameterization of equations of state. This work presents experimental speed of sound data for oxygen measured with an apparatus that is based on the pulse-echo technique with a double path-length. When working with pure oxygen at high temperatures and pressures, tight safety requirements have to be met, limiting the present measurements to 500 K and 100 MPa.
Compounds
# Formula Name
1 O2 oxygen
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
  • Speed of sound, m/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Frequency, MHz; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • Pulse-echo method
  • 90