Neon#

References#

Equation of State#

M. Thol, R. Beckmüller, R. Weiss, A.H. Harvey, E.W. Lemmon, R.T. Jacobsen, and R. Span. Thermodynamic properties for neon for temperatures from the triple point to 700 k at pressures to 700 mpa. J. Phys. Chem Ref. Data, 2019, Submitted.

Melting Line#

David Santamaría-Pérez, Goutam Dev Mukherjee, Beate Schwager, and Reinhard Boehler. High-pressure melting curve of helium and neon: Deviations from corresponding states theory. Physical Review B, 81:214101:1–5, 2010. doi:10.1103/PhysRevB.81.214101.

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#

neon, NEON, R720

Molecular Structure#

Neon — 2D structure (interactive: click and drag to rotate)

Fluid Information#

Parameter, Value

General

Molar mass [kg/mol]

0.020179

CAS number

7440-01-9

ASHRAE class

A1

Formula

Ne

Acentric factor

-0.03549258024442481

InChI

InChI=1S/Ne

InChIKey

GKAOGPIIYCISHV-UHFFFAOYSA-N

SMILES

[Ne]

ChemSpider ID

22377

Limits

Maximum temperature [K]

725.0

Maximum pressure [Pa]

1000000000.0

Triple point

Triple point temperature [K]

24.56

Triple point pressure [Pa]

43417.232458065846

Critical point

Critical point temperature [K]

44.39999970498691

Critical point density [kg/m3]

486.31370002144575

Critical point density [mol/m3]

24099.990089768857

Critical point pressure [Pa]

2661630.706279463

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/Neon.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/Neon1.png

Flash consistency (HEOS): 0 inconsistent, 1915 exceptions, 0 bad-phase across 11 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

DmolarHmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarHmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarHmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarHmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarHmolar

EXCEPTION

1phase

205328

24.56

Dmolar

61966.7

Hmolar

-94.4429

D < DLtriple -94.4429 -94.4429

DmolarHmolar

EXCEPTION

1phase

444303

24.56

Dmolar

62024.2

Hmolar

-91.8589

D < DLtriple -91.8589 -91.8589

DmolarHmolar

EXCEPTION

1phase

743306

24.56

Dmolar

62095.5

Hmolar

-88.6187

D < DLtriple -88.6187 -88.6187

DmolarHmolar

EXCEPTION

1phase

2.08038e+06

24.56

Dmolar

62406.2

Hmolar

-74.0373

D < DLtriple -74.0373 -74.0373

DmolarHmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

DmolarP

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarP

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarP

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarP

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarP

EXCEPTION

1phase

7.73136e+08

671.736

Dmolar

53099.8

P

7.73136e+08

The temperature of -56.183481 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

7.73136e+08

689.49

Dmolar

52553.5

P

7.73136e+08

The temperature of -188.898725 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

7.73136e+08

707.245

Dmolar

52020.6

P

7.73136e+08

The temperature of -326.218641 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

7.73136e+08

725

Dmolar

51500.4

P

7.73136e+08

The temperature of -442.716051 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

DmolarP

EXCEPTION

1phase

1e+09

477.25

Dmolar

66612.5

P

1e+09

The temperature of -11.697099 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

494.947

Dmolar

65880.6

P

1e+09

The temperature of -789.171522 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

512.643

Dmolar

65169.3

P

1e+09

The temperature of -91912.037393 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

530.34

Dmolar

64477.9

P

1e+09

The temperature of -12897.012307 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

548.036

Dmolar

63805.5

P

1e+09

The temperature of -7309.836944 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

565.732

Dmolar

63151.1

P

1e+09

The temperature of -5280.580153 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

583.429

Dmolar

62514.2

P

1e+09

The temperature of -4239.200333 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

601.125

Dmolar

61893.8

P

1e+09

The temperature of -3610.709246 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

618.822

Dmolar

61289.4

P

1e+09

The temperature of -3193.904110 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

636.518

Dmolar

60700.1

P

1e+09

The temperature of -2900.082846 K is below the minimum of 0.000000 K

DmolarP

EXCEPTION

1phase

1e+09

654.214

Dmolar

60125.4

P

1e+09

The temperature of -2684.052904 K is below the minimum of 0.000000 K

DmolarSmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarSmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarSmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarSmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarSmolar

EXCEPTION

1phase

961417

24.56

Dmolar

62147.1

Smolar

-3.88707

D < DLtriple -3.88707 -3.88707

DmolarSmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

DmolarT

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarT

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarT

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarT

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarT

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

DmolarUmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarUmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarUmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarUmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

DmolarUmolar

EXCEPTION

1phase

122732

24.56

Dmolar

61946.7

Umolar

-97.316

D < DLtriple -97.316 -97.316

DmolarUmolar

EXCEPTION

1phase

444303

24.56

Dmolar

62024.2

Umolar

-99.0223

D < DLtriple -99.0223 -99.0223

DmolarUmolar

EXCEPTION

1phase

961417

24.56

Dmolar

62147.1

Umolar

-101.72

D < DLtriple -101.72 -101.72

DmolarUmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

HmolarP

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarP

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarP

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarP

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarP

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

HmolarP

EXCEPTION

1phase

1e+09

52.5367

Hmolar

11413.6

P

1e+09

unable to solve 1phase PY flash with Tmin=34.8393, Tmax=1087.5 due to error: Inputs in Brent [51380.898464,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916116]

HmolarSmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarSmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarSmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarSmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

HmolarSmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

PSmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

PSmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

PSmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

PSmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

PSmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

PSmolar

EXCEPTION

1phase

1e+09

52.5367

P

1e+09

Smolar

-16.3039

unable to solve 1phase PY flash with Tmin=34.8393, Tmax=1087.5 due to error: Inputs in Brent [51380.898464,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916116]

PT

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

PT

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

PT

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

PT

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

PT

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

PUmolar

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

PUmolar

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

PUmolar

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

PUmolar

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

PUmolar

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

PUmolar

EXCEPTION

1phase

1e+09

52.5367

P

1e+09

Umolar

1004.52

unable to solve 1phase PY flash with Tmin=34.8393, Tmax=1087.5 due to error: Inputs in Brent [51380.898464,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916116]

SmolarT

EXCEPTION

1phase

43851.4

24.56

P

43851.4

T

24.56

unable to calculate melting line T(p) for Simon curve for p=43851.4; bounds are 1.45928e+07,1.31216e+11 Pa

SmolarT

EXCEPTION

1phase

56718.9

24.56

P

56718.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=56718.9; bounds are 1.45928e+07,1.31216e+11 Pa

SmolarT

EXCEPTION

1phase

73362.1

24.56

P

73362.1

T

24.56

unable to calculate melting line T(p) for Simon curve for p=73362.1; bounds are 1.45928e+07,1.31216e+11 Pa

SmolarT

EXCEPTION

1phase

94888.9

24.56

P

94888.9

T

24.56

unable to calculate melting line T(p) for Simon curve for p=94888.9; bounds are 1.45928e+07,1.31216e+11 Pa

SmolarT

EXCEPTION

1phase

1e+09

34.8403

P

1e+09

T

34.8403

Inputs in Brent [51379.717237,68366.278418] do not bracket the root. Function values are [-1.000201,-0.916112]

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/Neon2.png