Isothermal Properties for Oxygen
- Fluid Data
- Auxiliary Data
- Additional Information
- Important Information About This Data
- Other Data Available:
Isothermal Data for T = 0.0000 C
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Reference States, default for fluid
|Enthalpy||H = 8.67210 kJ/mol at 25.00 C and 0.9869 atm.|
|Entropy||S = 205.131 J/mol*K at 25.00 C and 0.9869 atm.|
Additional fluid properties
|Critical temperature (Tc)||-118.569 C|
|Critical pressure (Pc)||49.771 atm|
|Critical density (Dc)||436.1 kg/m3|
|Normal boiling point||-182.9622 C|
|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 10) of this database in the future. Information on REFPROP version 10 can be found on theREFPROP web page. REFPROP version 10 includes additional data and features not available from this site.
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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