Krypton

References

Equation of State

E.W. Lemmon and R. Span. Short Fundamental Equations of State for 20 Industrial Fluids. J. Chem. Eng. Data, 51:785–850, 2006. doi:10.1021/je050186n.

Melting Line

A. Michels and C. Prins. The Melting Lines of Argon, Krypton and Xenon up to 1500 atm; Representation of the Results by a Law of Corresponding States. Physica, 28:101–116, 1962. doi:10.1016/0031-8914(62)90096-4.

Surface Tension

A. Mulero, I. Cachadiña, and M. I. Parra. Recommended Correlations for the Surface Tension of Common Fluids. J. Phys. Chem. Ref. Data, 41(4):043105–1:13, 2012. doi:10.1063/1.4768782.

Aliases

krypton, KRYPTON

Fluid Information

Parameter, Value  
General  
Molar mass [kg/mol] 0.083798
CAS number 7439-90-9
ASHRAE class UNKNOWN
Formula \(Kr\)
Acentric factor -0.00089
InChI InChI=1/Kr
InChIKey DNNSSWSSYDEUBZ-UHFFFAOYAX
SMILES [Kr]
ChemSpider ID 5223
2D image http://www.chemspider.com/ImagesHandler.ashx?id=5223
Limits  
Maximum temperature [K] 750.0
Maximum pressure [Pa] 200000000.0
Triple point  
Triple point temperature [K] 115.77
Triple point pressure [Pa] 73502.8374764
Critical point  
Critical point temperature [K] 209.48
Critical point density [kg/m3] 909.2083
Critical point density [mol/m3] 10850.0
Critical point pressure [Pa] 5525000.0
   

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/Krypton.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/Krypton1.png