REFPROP is a software program for the prediction of thermophysical properties of fluids, developed by the National Institute of Standards and Technology (NIST).
The primary component of REFPROP is an equation of state for each implemented fluid. For most pure fluids, the equation of state is obtained by fitting an expression for the Helmholtz free energy to experimental data. This formulation allows the computation of all equilibrium properties of the fluid, such as density, temperature, pressure, sound speed, heat capacity, second virial coefficients, vapor pressures, saturated liquid and vapor densities, enthalpy of vaporization, entropy, and the Joule-Thomson coefficient.
REFPROP also predicts surface tension, viscosity, and thermal conductivity for many fluids, either using extended corresponding states formulations or fluid-specific equations fit directly to experimental data.
Various methods are used to compute the analogous properties of fluid mixtures.
The full list of fluids properties implemented in REFPROP v10.0 can be found in Table 2 of Huber, et al. (2022).
List of implemented fluids REFPROP v10.0 implements equation of state models for 147 pure fluids, listed in Table 1. Except for , R-13, R-123, and R-152a, all of these are Helmholtz free energy formulations.
REFPROP v10.0 also predicts surface tension, viscosity, and thermal conductivity for most of the listed fluids.
+ Table 1: List of pure fluids implemented in REFPROP v10.0 Short name Full name Short formula CAS number 1,3-Butadiene Buta-1,3-diene 106-99-0 1-Butyne But-1-yne 107-00-6 1-Pentene Pent-1-ene 109-67-1 2,2-Dimethylbutane 2,2-Dimethylbutane 75-83-2 2,3-Dimethylbutane 2,3-Dimethylbutane 79-29-8 3-Methylpentane 3-Methylpentane 96-14-0 Acetone Propanone 67-64-1 Acetylene Ethyne 74-86-2 Ammonia Ammonia 7664-41-7 Argon Argon 7440-37-1 Benzene Benzene 71-43-2 Butane n-Butane 106-97-8 Butene 1-Butene 106-98-9 Carbon dioxide Carbon dioxide 124-38-9 Carbon monoxide Carbon monoxide 630-08-0 Carbonyl sulfide Carbon oxide sulfide 463-58-1 Chlorine Chlorine 7782-50-5 Chlorobenzene Chlorobenzene 108-90-7 cis-Butene cis-2-Butene 590-18-1 Cyclobutene 1-Cyclobutene 822-35-5 Cyclohexane Cyclohexane 110-82-7 Cyclopentane Cyclopentane 287-92-3 Cyclopropane Cyclopropane 75-19-4 D4 Octamethylcyclotetrasiloxane 556-67-2 D5 Decamethylcyclopentasiloxane 541-02-6 D6 Dodecamethylcyclohexasiloxane 540-97-6 DEA 2,2'-Iminodiethanol 111-42-2 Decane Decane 124-18-5 Deuterium Deuterium 7782-39-0 Dichloroethane 1,2-Dichloroethane 107-06-2 Diethyl ether Diethyl ether 60-29-7 Dimethyl carbonate Dimethyl ester carbonic acid 616-38-6 Dimethylether Methoxymethane 115-10-6 Docosane Docosane 629-97-0 Dodecane Dodecane 112-40-3 Ethane Ethane 74-84-0 Ethanol Ethyl alcohol 64-17-5 Ethylene glycol 1,2-Ethandiol 107-21-1 Ethyl benzene Phenylethane 100-41-4 Ethylene Ethene 74-85-1 Ethylene oxide Ethylene oxide 75-21-8 Fluorine Fluorine 7782-41-4 Heavy water Deuterium oxide 7789-20-0 Helium Helium-4 7440-59-7 Heptane Heptane 142-82-5 Hexadecane Hexadecane 544-76-3 Hexane Hexane 110-54-3 Hydrogen Hydrogen 1333-74-0 Hydrogen chloride Hydrogen chloride 7647-01-0 Hydrogen sulfide Hydrogen sulfide 7783-06-4 Isobutane 2-Methylpropane 75-28-5 Isobutene 2-Methyl-1-propene 115-11-7 Isohexane 2-Methylpentane 107-83-5 Isooctane 2,2,4-Trimethylpentane 540-84-1 Isopentane 2-Methylbutane 78-78-4 Krypton Krypton 7439-90-9 MD2M Decamethyltetrasiloxane 141-62-8 MD3M Dodecamethylpentasiloxane 141-63-9 MD4M Tetradecamethylhexasiloxane 107-52-8 MDM Octamethyltrisiloxane 107-51-7 MEA Ethanolamine 141-43-5 Methane Methane 74-82-8 Methanol Methanol 67-56-1 Methyl linoleate Methyl(Z,Z)-9,12-octadecadienate 112-63-0 Methyl linolenate Methyl(Z,Z,Z)-9,12,15-octadecatrienoate 301-00-8 Methyl oleate Methylcis-9-octadecenoate 112-62-9 Methyl palmitate Methyl hexadecanoate 112-39-0 Methyl stearate Methyl octadecanoate 112-61-8 Methyl cyclohexane Methylcyclohexane 108-87-2 MM Hexamethyldisiloxane 107-46-0 m-Xylene 1,3-Dimethylbenzene 108-38-3 Neon Neon 7440-01-9 Neopentane 2,2-Dimethylpropane 463-82-1 Nitrogen Nitrogen 7727-37-9 Nitrogen trifluoride Nitrogen trifluoride 7783-54-2 Nitrous oxide Dinitrogen monoxide 10024-97-2 Nonane Nonane 111-84-2 Novec649,1230 1,1,1,2,2,4,5,5,5-Nonafluoro-4-(trifluoromethyl)-3-pentanone 756-13-8 Octane Octane 111-65-9 Orthohydrogen Orthohydrogen - Oxygen Oxygen 7782-44-7 o-Xylene 1,2-Dimethylbenzene 95-47-6 Parahydrogen Parahydrogen - Pentane Pentane 109-66-0 Perfluorobutane Decafluorobutane 355-25-9 Perfluorohexane Tetradecafluorohexane 355-42-0 Perfluoropentane Dodecafluoropentane 678-26-2 Propadiene 1,2-Propadiene 463-49-0 Propane Propane 74-98-6 Propyl cyclohexane n-Propyl cyclohexane 1678-92-8 Propylene Propene 115-07-1 Propylene oxide 1,2-Epoxy propane 75-56-9 Propyne Propyne 74-99-7 p-Xylene 1,4-Dimethylbenzene 106-42-3 R11 Trichlorofluoromethane 75-69-4 R1123 Trifluoroethylene 359-11-5 R113 1,1,2-Trichloro-1,2,2-trifluoroethane 76-13-1 R114 1,2-Dichlorotetrafluoroethane 76-14-2 R115 Chloropentafluoroethane 76-15-3 R116 Hexafluoroethane 76-16-4 R12 Dichlorodifluoromethane 75-71-8 R1216 Hexafluoropropene 116-15-4 R1224yd(Z) (Z)-1-Chloro-2,3,3,3-tetrafluoropropene 111512-60-8 R123 2,2-Dichloro-1,1,1-trifluoroethane 306-83-2 R1233zd(E) trans-1-Chloro-3,3,3-trifluoro-1-propene 102687-65-0 R1234yf 2,3,3,3-Tetrafluoroprop-1-ene 754-12-1 R1234ze(E) trans-1,3,3,3-Tetrafluoropropene 29118-24-9 R1234ze(Z) cis-1,3,3,3-Tetrafluoropropene 29118-25-0 R124 1-Chloro-1,2,2,2-tetrafluoroethane 2837-89-0 R1243zf 3,3,3-Trifluoropropene 677-21-4 R125 Pentafluoroethane 354-33-6 R13 Chlorotrifluoromethane 75-72-9 R1336mzz(Z) (Z)-1,1,1,4,4,4-Hexafluoro-2-butene 692-49-9 R134a 1,1,1,2-Tetrafluoroethane 811-97-2 R13I1 Trifluoroiodomethane 2314-97-8 R14 Tetrafluoromethane 75-73-0 R141b 1,1-Dichloro-1-fluoroethane 1717-00-6 R142b 1-Chloro-1,1-difluoroethane 75-68-3 R143a 1,1,1-Trifluoroethane 420-46-2 R152a 1,1-Difluoroethane 75-37-6 R161 Fluoroethane 353-36-6 R21 Dichlorofluoromethane 75-43-4 R218 Octafluoropropane 76-19-7 R22 Chlorodifluoromethane 75-45-6 R227ea 1,1,1,2,3,3,3-Heptafluoropropane 431-89-0 R23 Trifluoromethane 75-46-7 R236ea 1,1,1,2,3,3-Hexafluoropropane 431-63-0 R236fa 1,1,1,3,3,3-Hexafluoropropane 690-39-1 R245ca 1,1,2,2,3-Pentafluoropropane 679-86-7 R245fa 1,1,1,3,3-Pentafluoropropane 460-73-1 R32 Difluoromethane 75-10-5 R365mfc 1,1,1,3,3-Pentafluorobutane 406-58-6 R40 Methyl chloride 74-87-3 R41 Fluoromethane 593-53-3 RC318 Octafluorocyclobutane 115-25-3 RE143a Methyl trifluoromethyl ether 421-14-7 RE245cb2 Methyl pentafluoroethyl ether 22410-44-2 RE245fa2 2,2,2-Trifluoroethyl-difluoromethyl-ether 1885-48-9 RE347mcc(HFE7000) 1,1,1,2,2,3,3-Heptafluoro-3methoxypropane 375-03-1 Sulfur dioxide Sulfur dioxide 7446-09-5 Sulfur hexafluoride Sulfur hexafluoride 2551-62-4 Toluene Methylbenzene 108-88-3 trans-Butene trans-2-Butene 624-64-6 Undecane Undecane 1120-21-4 Vinyl chloride Chloroethylene 75-01-4 Water Water 7732-18-5 Xenon Xenon 7440-63-3
See also Process engineering Prediction of viscosity Prediction of thermal conductivity Viscosity models for mixtures Theorem of corresponding states Departure function The International Association for the Properties of Water and Steam
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