n-Undecane

References

Equation of State

I. S. Aleksandrov, A. A. Gerasimov, and B. A. Grigor'ev. Using Fundamental Equations of State for Calculating the Thermodynamic Properties of Normal Undecane. Thermal Engineering, 58(8):691–698, 2011. doi:10.1134/S0040601511080027.

Surface Tension

A. Mulero and I. Cachadiña. Recommended Correlations for the Surface Tension of Several Fluids Included in the REFPROP Program. J. Phys. Chem. Ref. Data, 43:023104–1:8, 2014. doi:10.1063/1.4878755.

Aliases

Undecane, UNDECANE, N-UNDECANE, C11

Fluid Information

Parameter, Value  
General  
Molar mass [kg/mol] 0.15630826
CAS number 1120-21-4
ASHRAE class  
Formula \(C_{11}H_{24}\)
Acentric factor 0.539037101372
InChI InChI=1/C11H24/c1-3-5-7-9-11-10-8-6-4-2/h3-11H2,1-2H3
InChIKey RSJKGSCJYJTIGS-UHFFFAOYAC
SMILES CCCCCCCCCCC
ChemSpider ID 13619
2D image http://www.chemspider.com/ImagesHandler.ashx?id=13619
Limits  
Maximum temperature [K] 700.0
Maximum pressure [Pa] 500000000.0
Triple point  
Triple point temperature [K] 247.541
Triple point pressure [Pa] 0.446055830891
Critical point  
Critical point temperature [K] 638.8
Critical point density [kg/m3] 236.794019
Critical point density [mol/m3] 1514.91686364
Critical point pressure [Pa] 1990400.0
   

REFPROP Validation Data

Note

This figure compares the results generated from CoolProp and those generated from REFPROP. They are all results obtained in the form \(Y(T,\rho)\), where \(Y\) is the parameter of interest and which for all EOS is a direct evaluation of the EOS

You can download the script that generated the following figure here: (link to script), right-click the link and then save as... or the equivalent in your browser. You can also download this figure as a PDF.

../../_images/n-Undecane.png

Consistency Plots

The following figure shows all the flash routines that are available for this fluid. A red + is a failure of the flash routine, a black dot is a success. Hopefully you will only see black dots. The red curve is the maximum temperature curve, and the blue curve is the melting line if one is available for the fluid.

In this figure, we start off with a state point given by T,P and then we calculate each of the other possible output pairs in turn, and then try to re-calculate T,P from the new input pair. If we don’t arrive back at the original T,P values, there is a problem in the flash routine in CoolProp. For more information on how these figures were generated, see CoolProp.Plots.ConsistencyPlots

Note

You can download the script that generated the following figure here: (link to script), right-click the link and then save as... or the equivalent in your browser. You can also download this figure as a PDF.

../../_images/n-Undecane1.png