lib.mEoS.iC4

Fluid info

  • CAS Number: 75-28-5

  • Formula: CH(CH3)3

  • Synonym: R-600a

  • Molecular weigth: 58.1222 g/mol

  • Tc: 407.8100 K

  • Pc: 3.6290 MPa

  • ρc: 225.5000 kg/m³

  • Tt: 113.7300 K

  • Tb: 261.4010 K

  • Acentric factor: 0.184

  • Dipole moment: 0.1320 Debye

Equation of state

  • Bücker, D., Wagner, W.; Reference Equations of State for the Thermodynamic Properties of Fluid Phase n-Butane and Isobutane. J. Phys. Chem. Ref. Data 35(2) (2006) 929-1019, http://dx.doi.org/10.1063/1.1901687

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

  • Kunz, O., Wagner, W.; The GERG-2008 Wide-Range Equation of State for Natural Gases and Other Mixtures: An Expansion of GERG-2004. J. Chem.Eng. Data 57(11) (2012) 3032-3091, http://dx.doi.org/10.1021/je300655b

  • Miyamoto, H., Watanabe, K.; A Thermodynamic Property Model for Fluid-Phase Isobutane. Int. J. Thermophys., 23(2) (2002) 477-499, http://dx.doi.org/10.1023/A:1015161519954

  • Span, R., Wagner, W.; Equations of state for technical applications. II. Results for nonpolar fluids.. Int. J. Thermophys. 24 (1) (2003) 41-109, http://dx.doi.org/10.1023/A:1022310214958

  • Polt, A., Platzer, B., Maurer, G.; Parameter der thermischen Zustandsgleichung von Bender fuer 14 mehratomige reine Stoffe. Chem. Technik 22(1992)6 , 216/224

  • Sun, L., Ely, J.F.; Universal equation of state for engineering application: Algorithm and application to non-polar and polar fluids. Fluid Phase Equilib., 222-223 (2004) 107-118, http://dx.doi.org/10.1016/j.fluid.2004.06.028

Viscosity

  • Herrmann, S., Vogel, E.; New Formulation for the Viscosity of Isobutane. J. Phys. Chem. Ref. Data 47(4) (2018) 043103, http://dx.doi.org/10.1063/1.5057413

  • Vogel, E., Küchenmeister, C., Bich, E.; Viscosity Correlation for Isobutane over Wide Ranges of the Fluid Region. Int. J. Thermophys 21(2) (2000) 343-356, http://dx.doi.org/10.1023/A:1006623310780

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

Thermal Conductivity

  • Perkins, R.A.; Measurement and Correlation of the Thermal Conductivity of Isobutane from 114 K to 600 K at Pressures to 70 MPa. J. Chem. Eng. Data 47(5) (2002) 1272-1279, http://dx.doi.org/10.1021/je010121u

  • Younglove, B.A., Ely, J.F.; Thermophysical Properties of Fluids. II. Methane, Ethane, Propane, Isobutane, and Normal Butane. J. Phys. Chem. Ref. Data 16(4) (1987) 577-798, http://dx.doi.org/10.1063/1.555785

Calculation example

Using the first option for equation of state, we can get this diagram plots with the liquid-gas saturation region:

_images/iC4.png

The diagram is generated with this module running with the compound name as parameter or edited in file

python3 plotMEoS.py iC4