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,
°C

Freezing point,
°C

Critical temperature,
°C

Critical pressure,
kPa

Critical volume,
L/kg

11

Trichlorofluoromethane

CCl3F

137.38

23.82

-111

198

4406

1.804

12

Dichlorodifluoromethane

CCl2F2

120.93

-29.79

-158

112

4113

1.792

13

Chlorotrifluoromethane

CCIF3

104.47

-81.4

-181

28.8

3865

1.729

13B1

Bromotrifluoromethane

CBrF3

148.93

-57.75

-168

67

3962

1.342

14

Tetrafluoromethane

CF4

88.01

-127.9

-184.9

-45.7

3741

1.598

21

Dichlorofluoromethane

CHCI2F

102.92

8.9

-135

178.5

5168

1.917

22

Chlorodifluoromethane

CHCIF2

86.48

-40.76

-160

96

4974

1.904

23

Trifluoromethane

CHF3

70.02

-82.1

-155

25.6

4833

1.942

30

Methylene chloride

CH2CI2

84.93

40.2

-97

237

6077

1.4244

32

Difluoromethane

CH2F2

52.02

-51.8

-136

78.4

5830

2.326

40

Methyl chloride

CH3CI

50.49

-12.4

-97.8

143.1

6674

2.834

50

Methane

CH4

16.04

-161.5

-182.2

-82.5

4638

6.181

113

Trichlorotrifluoroethane

CCI2FCCIF2

187.39

47.57

-35

214.1

3437

1.736

114

Dichlorotetrafluoroethane

CCIF2CCIF2

170.94

3.8

-94

145.7

3259

1.717

115

Chloropentafluoroethane

CCIF2CF3

154.48

-39.1

-106

79.9

3153

1.629

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°C

Freezing point,
°C

Critical temperature,
°C

Critical pressure,
kPa

Critical volume,
L/kg

123

Dichlorotrifluoroethane

CHCl2CF3

152.93

27.87

-107.15

183.79

3674

-

124

Chlorotetrafluoroethane

CHCIFCF3

136.47

-13.19

-199.15

122.5

3660

-

125

Pentafluoroethane

C2HF5

120.03

-48.57

-103.15

66.3

3630.6

-

134a

Tetrafluoroethane

CF3CH2F

102.03

-26.16

-96.6

101.1

4067

1.81

141b

Dichlorofluoroethane

CCI2FCH3

116.95

32

-

204.2

4250

-

142b

Chlorodifluoroethane

CCIF2CH3

100.5

-9.8

-131

137.1

4120

2.297

152a

Difluoroethane

CHF2CH3

66.05

-25

-117

113.5

4492

2.741

160

Ethyl chloride

C2H5CI

64.52

12.4

-138.3

187.2

5267

3.028

170

Ethane

C2H6

30.07

-88.8

-183

32.2

4891

5.182

216ca

Dichlorohexafluoropropane

C3CI2F6

220.93

35.69

-125.4

180

2753

1.742

290

Propane

C3H8

44.1

-42.09

-187.7

96.7

4248

4.53

C318

Octafluorocyclobutane

C4F8

200.04

-5.8

-41.4

115.3

2781

1.611

500

R-12/152a (73.8/26.2)

-

99.31

-33.5

-159

105.5

4423

2.016

502

R-22/115 (48.8/51.2)

-

111.63

-45.4

-

82.2

4075

1.785

503

R-23/13 (40.1/59.9)

-

87.5

-88.7

-

19.5

4182

2.035

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°C

Freezing point,
°C

Critical temperature,
°C

Critical pressure,
kPa

Critical volume,
L/kg

504

R-32/115 (48.2/51.8)

-

79.2

-57.2

-

66.4

4758

2.023

600

Butane

C4H10

58.13

-0.5

-138.5

152

3794

4.383

600a

Isobutane

C4H10

58.13

-11.73

-160

135

3645

4.526

610

Ethyl ether

C4H10O

74.12

34.6

-116.3

194

3603

3.79

611

Methyl formate

C2H4O2

60.05

31.8

-99

214

5994

2.866

630

Methyl amine

CH3NH2

31.06

-6.7

-92.5

156.9

7455

1.432

631

Ethyl amine

C2H5NH2

45.08

16.6

-80.6

183

5619

-

702n

Hydrogen, normal

H2

2.0159

-252.8

-259.2

-239.9

1315

33.21

702p

Hydrogen, para

H2

2.0159

-252.9

-259.3

-240.2

1292

31.82

704

Helium

He

4.0026

-268.9

None

-267.9

228.8

14.43

717

Ammonia

NH3

17.03

-33.3

-77.7

133

11417

4.245a

718

Water

H2O

18.02

100

0

373.99

22064

3.11

720

Neon

Ne

20.183

-246.1

-248.6

-228.7

3397

2.07

728

Nitrogen

N2

28.013

-198.8

-210

-146.9

3396

3.179

729

Air

-

28.97

-194.3

-

-140.53

3785

3.31

-

-

-

-140.6

3764

3.126

Number

Chemical name or Composition (% by mass)

Chemical formula

Molecular Mass

Boiling Pt. (NBP) at 1 atm,
°C

Freezing point,
°C

Critical temperature,
°C

Critical pressure,
kPa

Critical volume,
L/kg

732

Oxygen

O2

31.9988

-182.962

-218.8

-118.569

5042.9

2.293

740

Argon

Ar

39.948

-185.86

-189.3

-122.49

4860

1.88

744

Carbon dioxide

CO2

44.01

-78.4a

-56.6b

31.1

7372

2.135

744A

Nitrous oxide

N2O

44.02

-89.5

-102

36.5

7221

2.216

764

Sulfurdioxide

SO2

64.07

-10

-75.5

157.5

7875

1.910

1120

Trichloroethylene

CHCI=CCI2

131.39

87.2

-73

271.1

5016

1.4782

1130

Dichloroethylene

CHCI=CHCI

96.95

47.8

-50

243.3

5478

-

1150

Ethylene

C2H4

28.05

-103.7

-169

9.3

5114

4.37

1270

Propylene

C3H6

42.09

-47.7

-185

91.8

4618

4.495

Notes:

aThis material sublimes
bAt 527 kPa