HydrogenChloride

References

Equation of State

Monika Thol, Frithjof H. Dubberke, Elmar Baumhögger, Roland Span, and Jadran Vrabec. Speed of sound measurements and a fundamental equation of state for hydrogen chloride. J. Chem. Eng. Data, 63(7):2533–2547, 2018. doi:10.1021/acs.jced.7b01031.

Aliases

HydrogenChloride, HYDROGENCHLORIDE, HCl, HCL

Fluid Information

Parameter, Value

General

Molar mass [kg/mol]

0.0364609

CAS number

7647-01-0

ASHRAE class

UNKNOWN

Formula

ClH

Acentric factor

0.12965266718004553

InChI

InChI=1S/ClH/h1H

InChIKey

VEXZGXHMUGYJMC-UHFFFAOYSA-N

SMILES

Cl

ChemSpider ID

307

Limits

Maximum temperature [K]

670.0

Maximum pressure [Pa]

680000000.0

Triple point

Triple point temperature [K]

159.07

Triple point pressure [Pa]

13828.40467892872

Critical point

Critical point temperature [K]

324.68001279345276

Critical point density [kg/m3]

432.7908979589559

Critical point density [mol/m3]

11870.000410273908

Critical point pressure [Pa]

8313508.923127609

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/HydrogenChloride.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/HydrogenChloride1.png

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.

../../_images/HydrogenChloride2.png