SulfurHexafluoride

References

Equation of State

C. Guder and W. Wagner. A Reference Equation of State for the Thermodynamic Properties of Sulfur Hexafluoride SF6 for Temperatures from the Melting Line to 625 K and Pressures up to 150 MPa. J. Phys. Chem. Ref. Data, 38(1):33–94, 2009. doi:10.1063/1.3037344.

Thermal Conductivity

M. J. Assael, I. A. Koini, K. D. Antoniadis, M. L. Huber, I. M. Abdulagatov, and R. A. Perkins. Reference Correlation of the Thermal Conductivity of Sulfur Hexafluoride from the Triple Point to 1000 K and up to 150 MPa. J. Phys. Chem. Ref. Data, 41(2):023104–1:9, 2012. doi:10.1063/1.4708620.

Viscosity

S.E. Quiñones-Cisneros, M.L. Huber, and U.K. Deiters. Correlation for the Viscosity of Sulfur Hexafluoride (SF6) from the Triple Point to 1000 K and Pressures to 50 MPa. J. Phys. Chem. Ref. Data, 41(2):023102–1:11, 2012. doi:10.1063/1.3702441.

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

SULFURHEXAFLUORIDE, SF6

Fluid Information

Parameter, Value  
General  
Molar mass [kg/mol] 0.1460554192
CAS number 2551-62-4
ASHRAE class UNKNOWN
Formula \(F_{6}S\)
Acentric factor 0.21
InChI InChI=1/F6S/c1-7(2,3,4,5)6
InChIKey SFZCNBIFKDRMGX-UHFFFAOYAF
SMILES FS(F)(F)(F)(F)F
ChemSpider ID 16425
2D image http://www.chemspider.com/ImagesHandler.ashx?id=16425
Limits  
Maximum temperature [K] 625.0
Maximum pressure [Pa] 150000000.0
Triple point  
Triple point temperature [K] 223.555
Triple point pressure [Pa] 231424.473952
Critical point  
Critical point temperature [K] 318.7232
Critical point density [kg/m3] 742.3
Critical point density [mol/m3] 5082.3174112
Critical point pressure [Pa] 3754983.0
   

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/SulfurHexafluoride.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/SulfurHexafluoride1.png