R123

References

Equation of State

Ben A. Younglove. An International Standard Equation of State for the Thermodynamic Properties of Refrigerant 123 (2,2-Dichloro-1,1,1-Trifluoroethane). J. Phys. Chem. Ref. Data, 23(5):731–779, 1994. doi:10.1063/1.555950.

Ideal gas specific heat

Ben A. Younglove. An International Standard Equation of State for the Thermodynamic Properties of Refrigerant 123 (2,2-Dichloro-1,1,1-Trifluoroethane). J. Phys. Chem. Ref. Data, 23(5):731–779, 1994. doi:10.1063/1.555950.

Thermal Conductivity

Arno Laesecke, Richard A. Perkins, and John B. Howley. An improved correlation for the thermal conductivity of HCFC123 (2,2-dichloro-1,1,1-trifluoroethane). Int. J. Refrig., 19(4):231–238, 1996. doi:10.1016/0140-7007(96)00019-9.

Viscosity

Y. Tanaka and T. Sotani. Thermal Conductivity and Viscosity of 2,2-Dichloro-1,1,1-Trifluoroethane (HCFC-123). Int. J. Thermophys., 17(2):293–328, 1996. doi:10.1007/BF01443394.

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.

Molecular Structure

R123 — 3D conformer (interactive: click and drag to rotate)

Fluid Information

Parameter, Value
General
Molar mass [kg/mol]	0.152931
CAS number	306-83-2
ASHRAE class	B1
Formula	C2Cl2F3H
Acentric factor	0.2819224970363519
InChI	InChI=1S/C2HCl2F3/c3-1(4)2(5,6)7/h1H
InChIKey	OHMHBGPWCHTMQE-UHFFFAOYSA-N
SMILES	C(C(F)(F)F)(Cl)Cl
ChemSpider ID	9016
Limits
Maximum temperature [K]	600.0
Maximum pressure [Pa]	76000000.0
Triple point
Triple point temperature [K]	166.0
Triple point pressure [Pa]	4.202133802444641
Critical point
Critical point temperature [K]	456.8300258131298
Critical point density [kg/m3]	550.0128948608069
Critical point density [mol/m3]	3596.4774627826073
Critical point pressure [Pa]	3661805.269435811

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): 4 inconsistent, 1 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	6.51278	167.1	Dmolar	11563.4	P	6.51283
DmolarP	INCONSISTENT	1phase	23.5337	178.2	Dmolar	11397.9	P	23.5332
HmolarSmolar	EXCEPTION	2phase	1.66461e+06	410.225	Hmolar	55271.6	Smolar	224.193	HS inputs correspond to temperature above maximum temperature of EOS [600 K]
HmolarSmolar	INCONSISTENT	2phase	4.87369	167	Hmolar	15252.8	Smolar	82.0721
HmolarSmolar	INCONSISTENT	2phase	36.7928	182.202	Hmolar	17404.9	Smolar	94.4062

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.