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Refrigerants - Physical Properties

Physical properties of some common refrigerants - molecular weight, boiling, freezing and critical points

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Physical properties of some common refrigerants are indicated  in the table below:

Refrigerant
No.		 Name Molecular Mass Boiling point
at atmospheric pressure 14.7 psia, 1 bar abs
(oF)		 Freezing Point
at atmospheric pressure
14.7 psia, 1 bar abs
(oF)		 Critical Point
Temperature
(oF)		 Pressure
(psia)		 Specific Volume
(Cu.Ft./lb.)
R-10 Carbontetrachloride 153.8 170.2



R-11 Trichlorofluoromethane1) 137.37 74.9 -168 388 640 0.0289
R-12 Dichlorodifluoromethane2) 120.91 -21.8 -252 234 597 0.0287
R-13 Monochlorotrifluoromethane 104.46 -114.6 -294 84 561 0.0277
R-13B1 Bromotrifluoromethane 148.91 -72 -270 153 575 0.0215
R-14 Tetrafluoromethane (Carbon tetrafluoride) 88.00 -198.2 -299 -50 543 0.0256
R-14 Chloroform 119.4 142
R-21 Dichloro-fluoromethane 102.92 48.1 -211      
R-22 Monochlorodifluoromethane3) 86.468 -41.3 -256 205 722 0.0305
R-23 Trifluormethane 70 -119.9
R-30 Methylene Chloride 84.9 105.2
R-31 Monochloromonofluoromethane 68.5 48.0
R-32 Methylene Fluoride 52.0 -61.4
R-40 Chloromethane (Methyl Chloride) 50.488 -10.7 -144 290 969 0.0454
R-41 Methyl Fluoride 34.0 -109
R-50 Methane 16.044 -259 -296.6      
R-110 Hexachloroethane 236.8 365
R-111 Pentachloromonofluoroethane 220.3 279
R-112 Tetrachlorodifluoroethane 203.8 199.0
R-113 Trichlorotrifluoroethane4) 187.39 118 -31 417 499 0.0278
R-114 1,2-dichloro-1,1,2,2-tetrafluoroethane 170.92 38.4 -137 294 473 0.0275
R-115 Chloropentafluoroethane 154.47 -38.0 -149 176 458 0.0261
R-116 Hexafluoroethane 138.0 -108.8
R-120 Pentachloroethane 202.3 324
R-123 Dichlorotrifluoroethane5) 152.93 82 -161 363 533
R-124 Monochlorotetrafluoroethane 136.5 10.4
R-125 Pentafluoroethane 120 -55
R-133a Monochlorotrifluoroethane 118.5 43.0
R-134a Tetrafluoroethane6) 102.03 -15 -142 214 590 0.0290
R-140a Trichloroethane 133.4 165
R-142b 1-chloro-1,1-difluoroethane 100.50 14 -204 279 598 0.0368
R-143a Trifluoroethane 84 -53.5
R-150a Dichloroethane 98.9 140
R-152a Difluoroethane 66.05 -13        
R-160 Ethyl Chloride 64.515 12.2 -218      
R-170 Ethane 30.070 -127 -278 90 710 0.0830
R-218 Octafluoropropane 188 -36.4
R-290 Propane 44.097 -44 -309.8 206 617 0.0728
RC-318 Octafluorocyclobutane 200.04 22 -43 240 404 0.0258
R-410A R-32 Difluoromethane (50% weight), R-125 Pentafluoroethane (50% weight) 72.6 -55.4   162 690  
R-500 Dichlorodifluoromethane/
Difluoroethane7)		 99.31 -28 -254 222 642 0.0323
R-502 Chlorodifluoromethane/
Chloropentafluoroethane		 111.63 -50 180 591 0.0286
R-503 Chlorotrifluoromethane/
Trifluoromethane		 87.50 -128 67 607 0.0326
R-600 n-Butane 58.12 31.2 -217 306 551 0.0702
R-600a Isobutane (2-Methyl propane) 58.12 10.8 -229 275 529 0.0725
R-611 Methyl formate 60.05 89 -146 417 870 0.0459
R-702 Hydrogen 2.016 -423 -434.6      
R-704 Helium 4.0026 -452        
R-717 Ammonia 17.02 -28 -107.9 271 1657 0.0680
R-720 Neon 20.179 -410.9 -415.6      
R-728 Nitrogen 28.0134 -320.4 -346      
R-729 Air 28.966 -320 -357.2      
R-732 Oxygen 31.9988 -297.3 -361.3      
R-740 Argon 39.948 -303 -308.5      
R-744 Carbon Dioxide 44.01 -109.4 -70 88 1070 0.0342
R-744A Nitrous Oxide 44.012 -127.3 -131.5      
R-764 Sulfur Dioxide 64.06 14.0 -104 316 1143 0.0306
R-1150 Ethylene 28.05 -155 -272 49 742 0.0700
R-1270 Propylene 42.08 -54 -301 197 670 0.0720

1) Production of R11 or CFC-11 was halted by the clean air act on January 1, 1996

2) Production of R12 or CFC-12 (Freon) was halted by the clean air act on January 1, 1996

3) R22 or HCFC-22 is a single component HCFC refrigerant with low ozone depletion potential. It has long been used in a variety of air-conditioning and refrigeration applications in a variety of markets, including appliance, construction, food processing, and supermarkets

4) Production of R113 or CFC-113 was halted by the clean air act on January 1, 1996

5) R123 or HCFC-123 is a replacement for R11 in chillers and is providing this new refrigerant to chiller manufacturers for use in new and existing chillers

6) Refrigerant R134a or HFC-134a is a commercially available hydrofluorocarbon (HFC) refrigerant for use as a long-term replacement for R-12 in new equipment and for retrofitting medium temperature CFC-12 systems

7) Production of R-500 was halted by the clean air act on January 1, 1996.

Low Pressure, Medium Pressure and High Pressure Refrigerants

Typical low, medium and high pressure refrigerants are listed in the table below:

Refrigerants
Low Pressure R11 Trichlorofluoromethane
R13 Chlorotrifluoromethane
R113 Trichlorotrifluoroethane
R123 Dichlorotrifluoroethane
Medium Pressure R114 1,2-dichloro-1,1,2,2-tetrafluoroethane
High Pressure R12 Dichlorodifluoromethane
R22 Chlorodifluoromethane
R134a Tetrafluoroethane
R410A Difluoromethane/Pentafluoroethane
R500 Dichlorodifluoromethane/
Difluoroethane
R502 Chlorodifluoromethane/
Chloropentafluoroethane

CFS, HCFC, HFC and HC Refrigerants

Refrigerants can be classified as CFS's - ChloroFluoroCarbons refrigerants, HCFC's - HydroChloroFluorCarbons refrigerants, HFC's - HydroFluorCarbons refrigerants and HC - HydroCarbon refrigerants.

Refrigerants
CFS
ChloroFluoroCarbons		 R11 Trichlorofluoromethane
R12 Dichlorodifluoromethane
R13 Chlorotrifluoromethane
R113 Trichlorotrifluoroethane
R114 1,2-dichloro-1,1,2,2-tetrafluoroethane
R500 Dichlorodifluoromethane/
Difluoroethane
R502 Chlorodifluoromethane/
Chloropentafluoroethane
R503 Chlorotrifluoromethane/
Trifluoromethane
HCFC
HydroChloroFluorCarbons		 R22 Chlorodifluoromethane
R123 Dichlorotrifluoroethane
R124 Chlorotetrafluoroethane
R401a R22(53%)/R152a(13%)/R124(34%)
R401b R22(61%)/R152a(11%)/R124(28%)
R402a R22(38%)/R125(60%)/R290(2%)
R403b R22(56%)/R218(39%)/R290(5%)
R406a R22(55%)/R600a(4%)/R142b(41%)
R408a R125(7%)/R143a(46%)/R22(47%)
R409a R22(60%)/R124(25%)/R142b(15%)
HFC
HydroFluorCarbons		 R23 Trifluoromethane
R134a Tetrafluoroethane
R404a R125(44%)/R143a(52%)/R134a(4%)
R407a R32(20%)/R125(40%)/R134a(40%)
R410a R32(50%)/R125(50%)
R416a R134a(59%)/R124(39.5%)/R600(1.5%)
R507 R125(50%)/R143a(50%)
R508a R23(39%)/R116(61%)
HC
HydroCarbons		 R600 butane
R600a iso-butane

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