Physical properties of selected refrigerants

From ASHRAE, 1989

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°F

Freezing point,
°F

Critical temperature,
°F

Critical pressure,
psia

Critical volume,
ft3/lb

11

Trichlorofluoromethane

CCl3F

137.38

74.87

-168

388.4

639.5

0.0289

12

Dichlorodifluoromethane

CCl2F2

120.93

-21.62

-252

233.6

596.9

0.0287

13

Chlorotrifluoromethane

CCIF3

104.47

-114.6

-294

83.9

561

0.0277

13B1

Bromotrifluoromethane

CBrF3

148.93

-71.95

-270

152.6

575

0.0215

14

Tetrafluoromethane

CF4

88.01

-198.3

-299

-50.2

543

0.0256

21

Dichlorofluoromethane

CHCI2F

102.92

47.8

-211

353.3

750

0.0307

22

Chlorodifluoromethane

CHCIF2

86.48

-41.36

-256

204.8

721.9

0.0305

23

Trifluoromethane

CHF3

70.02

-115.7

-247

78.1

701.4

0.0311

30

Methylene chloride

CH2CI2

84.93

104.4

-142

458.6

882

32

Difluoromethane

CH2F2

52.02

-61.1

-213

173.14

845.6

0.03726

40

Methyl chloride

CH3CI

50.49

-11.6

-144

289.6

968.7

0.0454

50

Methane

CH4

16.04

-258.7

-296

-116.5

673.1

0.099

113

Trichlorotrifluoroethane

CCI2FCCIF2

187.39

117.63

-31

417.4

498.9

0.0278

114

Dichlorotetrafluoroethane

CCIF2CCIF2

170.94

38.8

-137

294.3

473

0.0275

115

Chloropentafluoroethane

CCIF2CF3

154.48

-38.4

-159

175.9

457.6

0.0261

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°F

Freezing point,
°F

Critical temperature,
°F

Critical pressure,
psia

Critical volume,
ft3/lb

123

Dichlorotrifluoroethane

CHCl2CF3

152.93

82.17

-160.87

362.82

532.87

124

Chlorotetrafluoroethane

CHCIFCF3

136.47

8.26

-326.47

252.5

530.84

125

Pentafluoroethane

C2HF5

120.03

-55.43

-153.67

151.34

526.57

134a

Tetrafluoroethane

CF3CH2F

102.03

-15.08

-141.9

214

589.8

0.029

141b

Dichlorofluoroethane

CCI2FCH3

116.95

89.6

399.6

616.4

142b

Chlorodifluoroethane

CCIF2CH3

100.5

14.4

-204

278.8

598

0.0368

152a

Difluoroethane

CHF2CH3

66.05

-13

-178.6

236.3

652

0.0439

160

Ethyl chloride

C2H5CI

64.52

54.32

-216.9

369

764.4

0.0485

170

Ethane

C2H6

30.07

-127.85

-297

90

709.8

0.083

216ca

Dichlorohexafluoropropane

C3CI2F6

220.93

96.24

-193.7

356

399.5

0.0279

290

Propane

C3H8

44.1

-43.76

-305.8

206.1

616.1

0.0726

C318

Octafluorocyclobutane

C4F8

200.04

21.5

-42.5

239.6

403.6

0.0258

500

R-12/152a (73.8/26.2)

-

99.31

-28.3

-254

221.9

641.9

0.0323

502

R-22/115 (48.8/51.2)

-

111.63

-49.8

179.9

591

0.0286

503

R-23/13 (40.1/59.9)

-

87.5

-127.6

67.1

607

0.0326

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°F

Freezing point,
°F

Critical temperature,
°F

Critical pressure,
psia

Critical volume,
ft3/lb

504

R-32/115 (48.2/51.8)

79.2

-71

151.5

690.5

0.0324

600

Butane

C4H10

58.13

31.1

-217.3

305.6

550.7

0.0702

600a

Isobutane

C4H10

58.13

10.89

-255.5

275

529.1

0.0725

610

Ethyl ether

C4H10O

74.12

94.3

-177.3

381.2

523

0.0607

611

Methyl formate

C2H4O2

60.05

89.2

-146

417.2

870

0.0459

630

Methyl amine

CH3NH2

31.06

19.9

-134.5

314.4

1082

 

631

Ethyl amine

C2H5NH2

45.08

61.88

-113

361.4

815.6

702n

Hydrogen, normal

H2

2.0159

-423

-434.5

-399.9

190.8

0.532

702p

Hydrogen, para

H2

2.0159

-423.2

-434.8

-400.3

187.5

0.5097

704

Helium

He

4.0026

-452.1

None

-450.3

33.21

0.2311

717

Ammonia

NH3

17.03

-28

-107.9

271.4

1657

0.068

718

Water

H2O

18.02

212

32

705.18

3200

0.0498

720

Neon

Ne

20.183

-410.9

-415.5

-379.7

493.1

0.03316

728

Nitrogen

N2

28.013

-320.4

-346

-232.4

492.9

0.05092

729

Air

28.97

-317.8

-220.95

548.9

0.0530

-221.1

546.3

0.05007

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°F

Freezing point,
°F

Critical temperature,
°F

Critical pressure,
psia

Critical volume,
ft3/lb

732

Oxygen

O2

31.9988

-297.33

-361.8

-181.424

731.4

0.03673

740

Argon

Ar

39.948

-302.55

-308.7

-188.48

704.9

0.0301

744

Carbon dioxide

CO2

44.01

-109.2a

-69.9b

87.9

1070

0.0342

744A

Nitrous oxide

N2O

44.02

-129.1

-152

97.7

1048

0.0355

764

Sulfurdioxide

SO2

64.07

14

-103.9

315.5

1143

0.0306

1120

Trichloroethylene

CHCI=CCI2

131.39

189

-99

520

728

1130

Dichloroethylene

CHCI=CHCI

96.95

118

-58

470

795

1150

Ethylene

C2H4

28.05

-154.7

-272

48.8

742.2

0.07

1270

Propylene

C3H6

42.09

-53.86

-301

197.2

670.3

0.072

Notes:

aThis material sublimes
bAt 76.4 psia