Isothermal Properties for Oxygen
- Fluid Data
- Auxiliary Data
- Additional Information
- Important Information About This Data
- Other Data Available:
The following adjustments were made to the specified data range:
- The specified increment was adjusted to limit the number of points calculated.
Isothermal Data for T = 273.16 K
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Reference States, default for fluid
|Enthalpy||H = 8.67210 kJ/mol at 298.15 K and 0.1000 MPa.|
|Entropy||S = 205.131 J/mol*K at 298.15 K and 0.1000 MPa.|
Additional fluid properties
|Critical temperature (Tc)||154.581 K|
|Critical pressure (Pc)||5.0430 MPa|
|Critical density (Dc)||13.63 mol/l|
|Normal boiling point||90.1878 K|
|Dipole moment||0.0 Debye|
Equation of state, auxiliary model, and melting curve
Schmidt, R.; Wagner, W., A New Form of the Equation of State for Pure Substances and its Application to Oxygen, Fluid Phase Equilibria, 1985, 19, 175-200. [all data]
Auxiliary model and dielectric constant
Younglove, B.A., Thermophysical Properties of Fluids. I. Argon, Ethylene, Parahydrogen, Nitrogen, Nitrogen Trifluoride, and Oxygen, J. Phys. Chem. Ref. Data, 1982, 11, 1-11. [all data]
Auxiliary model, thermal conductivity, and viscosity
Laesecke, A.; Krauss, R.; Stephan, K.; Wagner, W., Transport Properties of Fluid Oxygen, J. Phys. Chem. Ref. Data, 1990, 19, 5, 1089-1122. [all data]
Lemmon, E.W.; Penoncello, S.G., The Surface Tension of Air and Air Component Mixtures, Adv. Cryo. Eng., 1994, 39, 1927-1934. [all data]
Equation of state
The uncertainties of the equation of state are 0.1% in density, 2% in heat capacity, and 1% in the speed of sound, except in the critical region.
The uncertainty in thermal conductivity is 2%.
The uncertainty in viscosity is 2%, except in the dilute gas, where the uncertainty is 0.5%.
The uncertainties in thermal conductivity are 3% in the dilute gas, 4% in the liquid, 5% in the vapor and about 6% elsewhere. In the critical region, the uncertainty is about 18%.
The uncertainties in viscosity are 1.5% in the dilute gas, 4% in the liquid, 5% in the vapor and about 6% elsewhere. In the critical region, the uncertainty is about 12%.
Important Information About This Data
The data above are from an older version of the NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP version 7). We will be updating our site to use the newer version (version 9.1) of this database in the the next couple of months. Information on REFPROP version 9.1 can be found here. REFPROP version 9.1 includes additional data and features not available from this site.
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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