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:

.. image:: images/iC4.png

The diagram is generated with :download:`this module <../.script/plotMEoS.py>` running with the compound name as parameter or edited in file

.. code-block:: bash

    python3 plotMEoS.py iC4