RefProp

RefProp is developed and maintained by the National Institute of Standard and Technologies and any specific information can be found in the original distribution package.

 

RefProp is not distributed together with the standard version of FluidProp because RefProp is owned and distributed by the National Institute of Standards and Technologies (NIST). To get access to RefProp via the common FluidProp interface you must own a valid license of RefProp 8 (or later). Once a valid a license has been obtained or if you have already a valid license, you can contact us about how to establish a link between FluidProp and RefProp.

 

RefProp implements reference equations of state as well as technical equations of state for pure fluids. Reference equations of state are able to describe all experimental thermodynamic property data available for a certain fluid within their experimental uncertainty. Technical equations of state are accurate enough for most technical applications.

Mixture properties can also be calculated using a generalized model described in the RefProp documentation. Mixtures can be composed from the list of available pure fluids. However, mixing of pure fluids is limited.

RefProp (version 9.0) provides thermodynamic and transport properties for the pure fluids listed in Table 1. The listed FluidProp names (either short or long) must be used to specify the fluid name in the SetFluid method. For a given fluid, the FluidProp name is the same in all thermodynamic libraries in which the fluid is available.

 Table 1
FluidProp Name (short) FluidProp Name (long) Tc[°C] Pc[bar] Tmin[°C] Tmax[°C]
C3H6O
acetone
234.95
47.00
-94.65
276.85
air
air
-140.33
38.50
-217.44
1720.58
amarillo
Amarillo Gas
-71.06
54.25
-187.53
368.60
NH3
ammonia
132.25
113.33
-77.65
426.85
Ar
argon
-122.46
48.63
-189.34
1726.85
C6H6
benzene
288.87
49.07
5.52
451.85
C4H10
butane
151.98
37.96
-138.25
301.85
C4H8
butene
146.14
40.05
-185.35
251.85
CO2
carbon dioxide
30.98
73.77
-56.56
1726.85
CO
carbon monoxide
-140.29
34.94
-204.99
226.85
COS
carbonyl sulfide
105.62
63.70
-138.85
376.85
c-C4H8
cis-butene
162.60
42.26
-138.85
251.85
C6H12
cyclohexane
280.45
40.80
6.32
426.85
C3H6
cyclopropane
125.15
55.80
-0.15
199.85
C5H10
cyclopentane
238.57
45.71
-93.45
276.85
D4
D4
313.34
13.32
17.10
399.85
D5
D5
346.08
11.61
26.85
399.85
D6
D6
372.63
9.61
-2.95
399.85
C10H22
decane
344.55
21.03
-29.65
401.85
D2
deuterium
-234.81
16.80
-254.43
326.85
C2H5OC2H5
diethylether
193.55
36.44
-3.15
226.85
C3H6O3
dimethyl carbonate
283.85
49.09
3.91
326.85
CH3OCH3
dimethylether
127.23
53.37
-141.49
251.85
C12H26
dodecane
384.95
18.17
-9.55
426.85
C6F12O
Dodecafluoro2methylpentan3one
168.66
18.69
-108.15
226.85
ekofisk
Ekofisk Gas
-56.95
60.25
-185.85
374.10
C2H6
ethane
32.17
48.72
-182.78
401.85
C2H5OH
ethanol
241.56
62.68
-114.15
376.85
C8H10
ethylbenzene
343.97
36.22
-94.95
426.85
C2H4
ethylene
9.20
50.42
-169.16
176.85
F2
fluorine
-128.74
51.72
-219.67
26.85
R161
fluoroethane
102.10
50.10
-143.15
176.85
gulf
Gulf Coast Gas
-75.97
49.43
-186.69
358.85
D2O
heavy water
370.70
216.71
3.82
526.85
He
helium
-267.95
2.28
-270.97
1726.85
C7H16
heptane
266.98
27.36
-90.60
326.85
C6H14
hexane
234.67
30.34
-95.32
326.85
HighCO2N2
High CO2 and Nitrogen Gas
-65.89
58.81
-183.56
419.87
HighN2
High Nitrogen Gas
-79.63
55.00
-190.59
400.05
HCl
hydrochloric acid
51.40
82.63
-118.15
56.85
H2
hydrogen
-240.00
12.96
-259.19
726.85
H2S
hydrogen sulfide
99.95
90.00
-85.45
486.85
i-C4H10
isobutane
134.66
36.29
-159.42
301.85
i-C4H8
isobutene
144.94
40.10
-140.75
276.85
i-C6H14
isohexane
224.55
30.40
-153.55
276.85
i-C8H18
isooctane
270.85
25.72
-107.38
326.85
i-C5H12
isopentane
187.20
33.78
-160.50
226.85
Kr
krypton
-63.67
55.25
-157.37
476.85
MD2M
MD2M
326.25
12.27
-67.95
399.85
MD3M
MD3M
355.21
9.45
-81.15
399.85
MD4M
MD4M
380.05
8.77
26.85
399.85
MDM
MDM
290.94
14.15
-85.95
399.85
CH4
methane
-82.59
45.99
-182.46
351.85
CH4O
methanol
240.23
82.16
-97.54
346.85
C19H34O2
methyl linoleate
525.85
13.41
-35.05
726.85
C19H32O2
methyl linolenate
498.85
13.69
-54.50
726.85
C19H36O2
methyl oleate
508.85
12.46
-19.68
726.85
C17H34O2
methyl palmitate
481.85
13.50
29.56
726.85
C19H38O2
methyl stearete
501.85
12.39
38.69
726.85
C7H14
methylcyclohexane
299.05
34.70
-126.45
326.85
MM
MM
245.55
19.39
-0.15
399.85
C8H10
m-xylene
343.97
36.22
-94.95
426.85
Ne
neon
-228.66
26.79
-248.59
426.85
neo-C5H12
neopentane
160.59
31.96
-16.55
276.85
N2
nitrogen
-146.96
33.96
-210.00
1726.85
NF3
nitrogen trifluoride
-39.15
44.61
-188.15
226.85
N2O
nitrous oxide
36.37
72.45
-90.82
251.85
C9H20
nonane
321.40
22.81
-53.45
326.85
C8H18
octane
296.17
24.97
-56.78
326.85
o-H2
orthohydrogen
-239.93
13.11
-259.14
726.85
O2
oxygen
-118.57
50.43
-218.79
1726.85
C8H10
o-xylene
343.97
36.22
-94.95
426.85
p-H2
parahydrogen
-240.21
12.86
-259.35
726.85
C5H12
pentane
196.55
33.70
-129.68
326.85
C4F10
perfluoro butane
113.18
23.23
-84.15
226.85
C5F12
perfluoro pentane
147.41
20.45
-124.79
226.85
C3H8
propane
96.74
42.51
-187.62
376.85
C9H18
propylcyclohexane
357.65
28.60
-94.95
376.85
C3H6
propylene
125.15
55.80
-0.15
199.85
C3H4
propyne
129.23
56.26
-0.15
200.85
C8H10
p-xylene
343.97
36.22
-94.95
426.85
R11
R11
197.96
44.08
-110.47
351.85
R113
R113
214.06
33.92
-36.22
251.85
R114
R114
145.68
32.57
0.00
233.85
R115
R115
79.95
31.29
-99.40
276.85
R116
R116
19.88
30.48
-100.05
151.85
R12
R12
111.97
41.36
-157.05
251.85
R1216
R1216
85.75
31.50
-155.50
126.85
R123
R123
183.68
36.62
-107.15
326.85
R1233ZD
R1233zd
165.60
35.73
-78.00
276.85
R1234YF
R1234yf
94.70
33.82
-53.15
136.85
R1234ZE
R1234ze
109.36
36.35
-104.53
146.85
R124
R124
122.28
36.24
-153.15
196.85
R125
R125
66.02
36.18
-100.63
226.85
R13
R13
28.85
38.79
-181.15
129.85
R134a
R134a
101.06
40.59
-103.30
181.85
R14
R14
-45.64
37.50
-153.15
349.85
R141b
R141b
204.35
42.12
-103.47
226.85
R142b
R142b
137.11
40.55
-130.43
196.85
R143a
R143a
72.71
37.61
-111.81
376.85
R152a
R152a
113.26
45.17
-118.59
226.85
R21
R21
178.33
51.81
-73.15
199.85
R218
R218
71.87
26.40
-147.70
166.85
R22
R22
96.15
49.90
-157.42
276.85
R227ea
R227ea
101.75
29.25
-126.80
201.85
R23
R23
26.14
48.32
-155.13
201.85
R236ea
R236ea
139.29
34.20
-33.15
138.85
R236fa
R236fa
124.92
32.00
-93.55
126.85
R245ca
R245ca
174.42
39.41
-81.65
176.85
R245fa
R245fa
154.01
36.51
-102.10
166.85
R32
R32
78.11
57.82
-136.81
161.85
C4H5F5
R365mfc
186.85
32.66
-34.15
226.85
C4F8
RC318
115.23
27.77
-39.80
349.85
C2H3F3O
RE143a
104.77
36.35
-33.15
146.85
C3H3F5O
RE245cb2
133.66
28.86
-23.15
226.85
C3H3F5O
RE245fa2
133.66
28.86
-23.15
226.85
C4H3F7O
RE347mcc
164.55
24.76
-23.15
226.85
SO2
sulfur dioxide
157.49
78.84
-75.45
251.85
SF6
sulfur hexafluoride
45.57
37.55
-49.59
351.85
C7H8
toluene
318.60
41.26
-95.15
426.85
t-C4H8
trans-butene
155.46
40.27
-105.55
251.85
CF3I
trifluoroiodomethane
123.29
39.53
-153.15
146.85
C11H24
undecane
365.65
19.90
-25.61
426.85
H2O
water
373.95
220.64
-21.98
1726.85
Xe
xenon
16.58
58.42
-111.74
476.85
 
The predefined mixtures of RefProp are also available through this version of the FluidProp interface. These mixtures are listed in table 2. The listed FluidProp names (either short or long) must be used to specify the fluid name in the SetFluid method.
 
Table 2

Product Name

Components FluidProp Name (short and long) MW [g/mol] Tc[°C] Pc[bar] Tmin[°C] Tmax[°C]
AIR NITROGEN/ ARGON/ OXYGEN AIR 28.9586 -140.33 38.50 -217.44 1720.58
AMARILLO METHANE/ NITROGEN/ CO2/ ETHANE/ PROPANE/ ISOBUTAN/ BUTANE/ IPENTANE/ PENTANE/ HEXANE AMARILLO 17.5953 -71.06 54.25 -187.53 368.60
EKOFISK METHANE/ NITROGEN/ CO2/ ETHANE/ PROPANE/ ISOBUTAN/ BUTANE/ IPENTANE/ PENTANE EKOFISK 18.7680 -56.95 60.25 -185.85 374.10
GLFCOAST METHANE/ NITROGEN/ CO2/ ETHANE/ PROPANE/ ISOBUTAN/ BUTANE/ IPENTANE/ PENTANE/ HEXANE GLFCOAST 16.7992 -75.97 49.43 -186.69 358.85
HIGHCO2 METHANE/ NITROGEN/ CO2/ ETHANE/ PROPANE/ ISOBUTAN/ BUTANE HIGHCO2 19.8288 -65.89 58.81 -183.56 419.87
HIGHN2 METHANE/ NITROGEN/ CO2/ ETHANE/ PROPANE/ ISOBUTAN/ BUTANE HIGHN2 18.6486 -79.63 55.00 -190.59 400.05
R401A R22/ R152A/ R124 R401A 94.4384 107.34 46.08 -155.18 246.70
R401B R22/ R152A/ R124 R401B 92.8361 105.57 46.86 -156.39 252.16
R401C R22/ R152A/ R124 R401C 101.0342 111.73 43.73 -153.27 231.67
R402A R125/ PROPANE/ R22 R402A 101.5501 75.81 42.19 -145.50 245.64
R402B R125/ PROPANE/ R22 R402B 94.7091 82.89 45.16 -154.60 257.22
R403A PROPANE/ R22/ R218 R403A 91.9849 86.96 47.04 -168.91 257.94
R403B PROPANE/ R22/ R218 R403B 103.2574 79.66 43.29 -170.22 236.70
R404A R125/ R134A/ R143A R404A 97.6038 72.04 37.29 -112.09 307.50
R405A R22/ R152A/ R142B/ RC318 R405A 111.9083 106.14 42.85 -140.07 276.98
R406A R22/ ISOBUTAN/ R142B R406A 89.8574 116.84 48.55 -153.88 242.03
R407A R32/ R125/ R134A R407A 90.1107 82.26 45.15 -119.09 191.55
R407B R32/ R125/ R134A R407B 102.9373 74.97 41.30 -113.09 207.54
R407C R32/ R125/ R134A R407C 86.2036 86.03 46.29 -120.76 185.13
R407D R32/ R125/ R134A R407D 90.9616 91.37 44.68 -117.06 183.55
R407E R32/ R125/ R134A R407E 83.7818 88.46 47.02 -121.80 181.18
R408A R125/ R143A/ R22 R408A 87.0149 83.14 42.95 -142.75 315.03
R409A R22/ R124/ R142B R409A 97.4333 109.27 46.99 -157.96 246.96
R409B R22/ R124/ R142B R409B 96.6731 106.93 47.35 -159.22 251.30
R410A R32/ R125 R410A 72.5854 71.34 49.01 -130.26 187.15
R410B R32/ R125 R410B 75.5723 70.81 48.12 -128.62 190.46
R411A PROPYLEN/ R22/ R152A R411A 82.3642 99.10 49.52 -158.96 271.07
R411B PROPYLEN/ R22/ R152A R411B 83.0689 95.92 49.44 -163.56 275.32
R412A R22/ R218/ R142B R412A 92.1736 107.19 49.06 -156.82 250.23
R413A R218/ R134A/ ISOBUTAN R413A 103.9547 96.55 40.19 -118.59 178.35
R414A R22/ R124/ ISOBUTAN/ R142B R414A 96.9320 112.68 46.79 -158.46 242.19
R414B R22/ R124/ ISOBUTAN/ R142B R414B 101.5894 111.00 45.92 -159.13 240.97
R415A R22/ R152A R415A 81.9105 101.97 49.59 -154.57 267.53
R415B R22/ R152A R415B 70.1946 111.37 46.54 -132.35 238.58
R416A R134A/ R124/ BUTANE R416A 111.9209 107.09 39.76 -131.65 185.11
R417A R125/ R134A/ BUTANE R417A 106.7459 87.13 40.35 -112.78 199.26
R418A PROPANE/ R22/ R152A R418A 84.5949 96.21 49.82 -162.89 276.18
R419A R125/ R134A/ DME R419A 109.3379 82.12 39.43 -110.56 222.43
R420A R134A/ R142B R420A 101.8451 104.76 40.86 -112.97 182.34
R421A R125/ R134A R421A 111.7465 82.78 39.19 -106.99 203.84
R421B R125/ R134A R421B 116.9290 72.41 37.49 -106.16 217.71
R422A R125/ R134A/ ISOBUTAN R422A 113.6044 71.71 37.45 -114.88 218.41
R422B R125/ R134A/ ISOBUTAN R422B 108.5184 83.21 39.58 -114.27 202.95
R422C R125/ R134A/ ISOBUTAN R422C 113.3993 73.06 37.75 -113.98 216.53
R422D R125/ R134A/ ISOBUTAN R422D 109.9351 79.57 39.05 -115.06 207.82
R423A R134A/ R227EA R423A 125.9591 99.14 35.63 -118.45 185.66
R424A R125/ R134A/ ISOBUTAN/ BUTANE/ IPENTANE R424A 108.4124 85.89 40.03 -112.34 200.18
R425A R32/ R134A/ R227EA R425A 90.3065 93.89 45.01 -121.54 177.33
R426A R125/ R134A/ BUTANE/ IPENTANE R426A 101.5585 99.89 40.92 -111.39 183.13
R427A R32/ R125/ R143A/ R134A R427A 90.4440 85.32 43.92 -117.84 201.24
R428A R125/ R143A/ PROPANE/ ISOBUTAN R428A 107.5276 69.00 37.25 -115.78 260.02
R435A DME/ R152A R435A 49.0354 125.15 53.84 -144.38 245.16
R436A PROPANE/ ISOBUTAN R436A 49.3342 115.88 42.73 -183.09 346.22
R436B PROPANE/ ISOBUTAN R436B 49.8728 117.42 42.50 -182.06 343.22
R437A R125/ R134A/ BUTANE/ PENTANE R437A 103.7085 96.27 40.87 -110.62 189.20
R500 R12/ R152A R500 99.3030 102.09 41.68 -152.94 227.57
R501 R22/ R12 R501 93.0983 95.87 47.61 -163.44 266.53
R502 R22/ R115 R502 111.6278 81.51 40.17 -149.97 262.85
R503 R23/ R13 R503 87.2467 18.43 42.81 -178.17 148.57
R504 R32/ R115 R504 79.2491 62.09 44.24 -140.24 166.09
R507A R125/ R143A R507A 98.8592 70.62 37.05 -111.79 308.37
R508A R23/ R116 R508A 100.0977 10.19 36.51 -147.21 158.36
R508B R23/ R116 R508B 95.3940 11.20 37.72 -150.14 162.79
R509A R22/ R218 R509A 123.9617 68.48 36.02 -165.41 205.63
R510A DME/ ISOBUTAN R510A 47.2442 125.67 51.18 -149.27 253.32