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, NC11H24, n-C11H24

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

0.5390371013718567

InChI

InChI=1S/C11H24/c1-3-5-7-9-11-10-8-6-4-2/h3-11H2,1-2H3

InChIKey

RSJKGSCJYJTIGS-UHFFFAOYSA-N

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]

0.4460558308906604

Critical point

Critical point temperature [K]

638.8000000000001

Critical point density [kg/m3]

236.79401900000002

Critical point density [mol/m3]

1514.9168636385564

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