Isobaric Properties for Methanol
- Fluid Data
- Auxiliary Data
- References and Notes
- Notes
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Fluid Data
Isobaric Data for P = 1.0000 bar
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Auxiliary Data
Reference States, Normal Boiling Point Convention
Enthalpy | H = 0 at the normal boiling point for saturated liquid. |
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Entropy | S = 0 at the normal boiling point for saturated liquid. |
Additional fluid properties
Critical temperature (Tc) | 239.5 C |
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Critical pressure (Pc) | 81.035 bar |
Critical density (Dc) | 8.6 mol/l |
Acentric factor | 0.5625 |
Normal boiling point | 64.482 C |
Dipole moment | 1.7 Debye |
References and Notes
Equation of state
de Reuck, K.M. and Craven, R.J.B., "Methanol, International Thermodynamic Tables of the Fluid State-12," IUPAC, Blackwell Scientific Publications, London, 1993.
The uncertainties of the equation of state are generally 0.1% in density and 2% in the speed of sound, except in the critical region and high pressures.
Auxillary model, Cp0
de Reuck, K.M. and Craven, R.J.B., 1993.
Auxillary model, PX0
de Reuck, K.M. and Craven, R.J.B., 1993.
Viscosity
Xiang, H.W.; Laesecke, A.; Huber, M.L., A New Reference Correlation for the Viscosity of Methanol, J. Phys. Chem. Ref. Data, 2006, 35, 4, 1597-1620, https://doi.org/10.1063/1.2360605 . [all data]Xiang, H.W., Laesecke, A., and Huber, M.L., "A New Reference Correlation for the Viscosity of Methanol," J. Phys. Chem. Ref. Data, 35(4):1597-1620, 2006.
Estimated uncertainty 0.6% in the dilute gas from room T to 630 K, 2% for the liquid at pressures up to 30 MPa between 273 and 343 K, 3% for pressures from 30 MPa to 100 MPa, 5% for the liquid from 100 to 500 MPa, 10% for 500 MPa to 800 MPa.
Thermal conductivity
Sykioti, E.A.; Assael, M.J.; Huber, M.L.; Perkins, R.A., Reference Correlation of the Thermal Conductivity of Methanol from the Triple Point to 660 K and up to 245 MPa, J. Phys. Chem. Ref. Data, 2013, 42, 4, 043101, https://doi.org/10.1063/1.4829449 . [all data]Sykioti, E.A., Assael, M.J., Huber, M.L., and Perkins, R.A., "Reference Correlation of the Thermal Conductivity of Methanol from the Triple Point to 660 K and up to 245 MPa," J. Phys. Chem. Ref. Data, 42, 043101, 2013.
Estimated uncertainty in thermal conductivity is 4.4% except near critical where the uncertainties are larger.
Auxillary model, the thermal conductivity critical enhancement
Olchowy, G.A.; Sengers, J.V., A Simplified Representation for the Thermal Conductivity of Fluids in the Critical Region, Int. J. Thermophysics, 1989, 10, 2, 417-426, https://doi.org/10.1007/BF01133538 . [all data]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]Metling line
Piazza, L.; Span, R., An equation of state for methanol including the association term of SAFT, Fluid Phase Equilibria, 2013, 349, 2, 12-24, https://doi.org/10.1016/j.fluid.2013.03.024 . [all data]de Reuck, K.M. and Craven, R.J.B., "Methanol, International Thermodynamic Tables of the Fluid State-12," IUPAC, Blackwell Scientific Publications, London, 1993.
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
Lemmon, C.K. and Lemmon, E.W., 2010.
Functional Form: D=Dc*[1+SUM(Ni*Theta^ti)] 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
Lemmon, C.K. and Lemmon, E.W., 2017.
Functional Form: D=Dc*EXP[SUM(Ni*Theta^ti)] 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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