Isothermal Properties for Carbon dioxide
- Fluid Data
- Auxiliary Data
- References and Notes
- Notes
- Other Data Available:
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The following adjustments were made to the specified data range:
- The specified increment was adjusted to limit the number of points calculated.
Fluid Data
Isothermal Data for T = 0.0000 C
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Auxiliary Data
Reference States, IIR Convention
| Enthalpy | H = 200 kJ/kg at 0°C for saturated liquid. |
|---|---|
| Entropy | S = 1 J/g*K at 0°C for saturated liquid. |
Additional fluid properties
| Critical temperature (Tc) | 30.9782 C |
|---|---|
| Critical pressure (Pc) | 7.3773 MPa |
| Critical density (Dc) | 10.6249 mol/l |
| Acentric factor | 0.22394 |
| Normal boiling point | -78.464 C |
| Dipole moment | 0.0 Debye |
References and Notes
Equation of state
Span, R.; Wagner, W., A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa, J. Phys. Chem. Ref. Data, 1996, 25, 6, 1509-1596, https://doi.org/10.1063/1.555991 . [all data]Span, R. and Wagner, W., "A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa," J. Phys. Chem. Ref. Data, 25(6):1509-1596, 1996.
The estimated uncertainties at pressures up to 30 MPa and temperatures up to 523 K range from 0.03% to 0.05% in density, 0.03% (in the vapor) to 1% in the speed of sound (0.5% in the liquid) and 0.15% (in the vapor) to 1.5% (in the liquid) in heat capacity. Special interest has been focused on the description of the critical region and the extrapolation behavior of the formulation (to the limits of chemical stability).
Auxillary model, Cp0
Span, R. and Wagner, W., 1996.
Auxillary model, PX0
Span, R. and Wagner, W., 1996.
Viscosity
Laesecke, A.; Muzny, C.D., Reference Correlation for the Viscosity of Carbon Dioxide, J. Phys. Chem. Ref. Data, 2017, 46, 1, 013107, https://doi.org/10.1063/1.4977429 . [all data]Thermal conductivity
Huber, M.L.; Sykioti, E.A.; Assael, M.J.; Perkins, R.A., Reference Correlation of the Thermal Conductivity of Carbon Dioxide from the Triple Point to 1100 K and up to 200 MPa, J. Phys. Chem. Ref. Data, 2016, 45, 1, 013102, https://doi.org/10.1063/1.4940892 . [all data]Huber, M.L., Sykioti, E.A., Assael, M.J., and Perkins, R.A., "Reference Correlation of the Thermal Conductivity of Carbon Dioxide from the Triple Point to 1100 K and up to 200 MPa," J. Phys. Chem. Ref. Data, 45, 013102, 2016.
The overall uncertainty (at the 95% confidence level) of the proposed correlation varies depending on the state point from a low of 1% at very low pressures below 0.1 MPa between 300 K and 700 K, to 5% at the higher pressures of the range of validity.
Auxillary model, the thermal conductivity critical enhancement
Huber, M.L., Sykioti, E.A., Assael, M.J., and Perkins, R.A., "Reference Correlation of the Thermal Conductivity of Carbon Dioxide from the Triple Point to 1100 K and up to 200 MPa," J. Phys. Chem. Ref. Data, 45, 013102, 2016.
Surface tension
Mulero, A.; Cachadiña, I.; Parra, M.I., Recommended Correlations for the Surface Tension of Common Fluids, J. Phys. Chem. Ref. Data, 2012, 41, 4, 043105, https://doi.org/10.1063/1.4768782 . [all data]Dielectric constant
Harvey, A.H.; Lemmon, E.W., Method for Estimating the Dielectric Constant of Natural Gas Mixtures, Int. J. Thermophys., 2005, 26, 1, 31-46, https://doi.org/10.1007/s10765-005-2351-5 . [all data]Metling line
Span, R.; Wagner, W., A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa, J. Phys. Chem. Ref. Data, 1996, 25, 6, 1509-1596, https://doi.org/10.1063/1.555991 . [all data]Span, R. and Wagner, W., "A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa," J. Phys. Chem. Ref. Data, 25(6):1509-1596, 1996.
Sublimation line
Span, R.; Wagner, W., A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa, J. Phys. Chem. Ref. Data, 1996, 25, 6, 1509-1596, https://doi.org/10.1063/1.555991 . [all data]Span, R. and Wagner, W., "A New Equation of State for Carbon Dioxide Covering the Fluid Region from the Triple-Point Temperature to 1100 K at Pressures up to 800 MPa," J. Phys. Chem. Ref. Data, 25(6):1509-1596, 1996.
Vapor pressure
Functional Form: P=Pc*EXP[SUM(Ni*Theta^ti)*Tc/T] where Theta=1-T/Tc, Tc and Pc are the reducing parameters below, which are followed by rows containing Ni and ti.
Saturated liquid density
Functional Form: D=Dc*EXP[SUM(Ni*Theta^(ti/3))] where Theta=1-T/Tc, Tc and Dc are the reducing parameters below, which are followed by rows containing Ni and ti.
Saturated liquid volume
Functional Form: D=Dc*EXP[SUM(Ni*Theta^(ti/3))] where Theta=1-T/Tc, Tc and Dc are the reducing parameters below, which are followed by rows containing Ni and ti.
Notes
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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