n-Perfluorobutane

References

Equation of State

Kehui Gao, Andreas Köster, Monika Thol, Jiangtao Wu, and Eric W. Lemmon. Equations of state for the thermodynamic properties of n-perfluorobutane, n-perfluoropentane, and n-perfluorohexane. Industrial & Engineering Chemistry Research, 60:17207–17227, 2021. doi:10.1021/acs.iecr.1c02969.

Ideal gas specific heat

Kehui Gao, Andreas Köster, Monika Thol, Jiangtao Wu, and Eric W. Lemmon. Equations of state for the thermodynamic properties of n-perfluorobutane, n-perfluoropentane, and n-perfluorohexane. Industrial & Engineering Chemistry Research, 60:17207–17227, 2021. doi:10.1021/acs.iecr.1c02969.

Aliases

C4F10, n-Perfluorobutane

Fluid Information

Parameter, Value
General
Molar mass [kg/mol]	0.238027
CAS number	355-25-9
ASHRAE class	?
Formula	C4F10
Acentric factor	0.372
InChI	InChI=1S/C4F10/c5-1(6,2(7,8)3(9,10)11)4(12,13)14
InChIKey	SLOLNCFHRLPENK-UHFFFAOYSA-N
SMILES	FC(F)(F)C(F)(F)C(F)(F)C(F)(F)F
ChemSpider ID	9219
Limits
Maximum temperature [K]	450.0
Maximum pressure [Pa]	10000000.0
Triple point
Triple point temperature [K]	144.0
Triple point pressure [Pa]	1.0765768216254925
Critical point
Critical point temperature [K]	386.3260016744248
Critical point density [kg/m3]	627.6771277832177
Critical point density [mol/m3]	2636.9997008037644
Critical point pressure [Pa]	2322379.2311479263

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.

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.

Flash consistency (HEOS): 3 inconsistent, 0 exceptions, 0 bad-phase across 2 input pair(s).

Download full failure list (CSV)

Failing state points (sample, up to 20 per pair/class)

Pair	Class	Region	P [Pa]	T [K]	In1	Val1	In2	Val2	Error
DmolarP	INCONSISTENT	1phase	1.64029	145.1	Dmolar	8585.21	P	1.64029
DmolarP	INCONSISTENT	1phase	5.631	152.918	Dmolar	8456.38	P	5.631
HmolarSmolar	INCONSISTENT	2phase	1.30321	145	Hmolar	-31142	Smolar	-153.585

Superancillary Plots

The following figure shows the accuracy of the superancillary functions relative to extended precision calculations carried out in C++ with the teqp library. The results of the iterative calculations with REFPROP and CoolProp are also shown.

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.