Refrigerant 502 (Azeotrope of R-22 and R-115) properties of saturated liquid and saturated vapor

From ASHRAE (1997), with permission

Values shown in red are at the boiling point
Values shown in bold are at the critical point

Temp., °C

Absolute pressure, MPa

Density, kg/m3

Volume, m3/kg

Enthalpy, kJ/kg

Entropy, kJ/kg·K

Specific heat, cp, kJ/kg·K

cp/cv

Velocity of sound, m/s

Viscosity,
10-6 Pa·s

Thermal cond., mW/m·K

Surface tension, mN/m

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

-70

0.02757

1557.6

0.54045

131.58

313.03

0.7146

1.6077

1.024

-

-

-

-

543.6

-

-

-

-

-68

0.03104

1551.6

0.48397

133.22

314.05

0.7226

1.6040

1.027

-

-

-

-

527.3

-

-

-

-

-66

0.03487

1545.5

0.43440

134.87

315.06

0.7306

1.6004

1.031

-

-

-

-

511.7

-

-

-

-

-64

0.03907

1539.5

0.39078

136.54

316.08

0.7386

1.5970

1.034

-

-

-

-

496.7

-

-

-

-

-62

0.04368

1533.4

0.35231

138.23

317.10

0.7466

1.5937

1.038

-

-

-

-

482.4

-

-

-

-

-60

0.04872

1527.2

0.31829

139.94

318.10

0.7546

1.5905

1.042

0.574

-

-

-

468.7

-

97.9

-

17.41

-58

0.05422

1521.1

0.28814

141.67

319.12

0.7627

1.5875

1.046

0.578

-

-

-

455.5

-

97.1

-

17.10

-56

0.06021

1514.9

0.26137

143.41

320.14

0.7708

1.5846

1.050

0.582

-

-

-

442.9

-

96.3

-

16.79

-54

0.06671

1508.6

0.23753

145.18

321.15

0.7788

1.5818

1.053

0.585

-

-

-

430.7

-

95.5

-

16.48

-52

0.07377

1502.4

0.21627

146.97

322.16

0.7869

1.5791

1.057

0.589

-

-

-

419.1

-

94.7

-

16.17

-50

0.08142

1496.1

0.19726

148.77

323.16

0.7950

1.5765

1.061

0.592

-

-

-

407.9

-

93.9

-

15.86

-48

0.08969

1489.7

0.18024

150.60

324.17

0.8031

1.5741

1.066

0.595

-

-

-

397.2

-

93.1

-

15.56

-46

0.09861

1483.4

0.16496

152.44

325.17

0.8113

1.5717

1.070

0.599

-

-

-

386.8

-

92.3

-

15.25

-45.42

0.10132

1481.5

0.16082

152.98

325.46

0.8136

1.5710

1.071

0.600

-

-

-

383.9

-

92.1

-

15.16

-44

0.10821

1476.9

0.15123

154.30

326.17

0.8194

1.5694

1.074

0.602

-

-

-

376.9

-

91.6

-

14.95

-42

0.11854

1470.5

0.13885

156.19

327.16

0.8276

1.5672

1.078

0.606

-

-

-

367.3

-

90.8

-

14.65

-40

0.12964

1464.0

0.12769

158.09

328.15

0.8357

1.5651

1.082

0.609

-

-

-

358.1

-

90.0

7.11

14.35

-38

0.14153

1457.4

0.11759

160.01

329.13

0.8439

1.5631

1.087

0.612

-

-

-

349.3

-

89.3

7.25

14.05

-36

0.15426

1450.9

0.10845

161.95

330.12

0.8521

1.5612

1.091

0.616

-

-

-

340.8

-

88.5

7.39

13.75

-34

0.16786

1444.2

0.10016

163.91

331.09

0.8603

1.5593

1.095

0.620

-

-

-

332.5

-

87.7

7.52

13.45

Temp., °C

Absolute pressure, MPa

Density, kg/m3

Volume, m3/kg

Enthalpy, kJ/kg

Entropy, kJ/kg·K

Specific heat, cp, kJ/kg·K

cp/cv

Velocity of sound, m/s

Viscosity,
10-6 Pa·s

Thermal cond., mW/m·K

Surface tension, mN/m

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

-32

0.18239

1437.5

0.09262

165.89

332.06

0.8685

1.5575

1.100

0.623

-

-

-

324.6

-

87.0

7.66

13.16

-30

0.19786

1430.8

0.08577

167.89

333.03

0.8767

1.5558

1.104

0.627

-

-

-

317.0

-

86.2

7.80

12.86

-28

0.21433

1424.0

0.07952

169.90

333.99

0.8849

1.5542

1.109

0.631

-

-

-

309.6

-

85.4

7.93

12.57

-26

0.23184

1417.2

0.07382

171.94

334.94

0.8931

1.5526

1.114

0.635

-

-

-

302.5

-

84.7

8.07

12.28

-24

0.25043

1410.3

0.06861

173.99

335.89

0.9013

1.5511

1.118

0.640

-

-

-

295.6

-

83.9

8.20

11.99

-22

0.27014

1403.4

0.06384

176.06

336.83

0.9095

1.5497

1.123

0.644

-

-

-

289.0

-

83.2

8.34

11.70

-20

0.29101

1396.4

0.05946

178.15

337.76

0.9178

1.5483

1.128

0.649

-

-

-

282.6

-

82.4

8.47

11.42

-18

0.31308

1389.3

0.05545

180.26

338.69

0.9260

1.5469

1.133

0.653

-

-

-

276.4

-

81.7

8.60

11.13

-16

0.33641

1382.2

0.05176

182.39

339.61

0.9342

1.5456

1.137

0.659

-

-

-

270.5

-

80.9

8.73

10.85

-14

0.36102

1375.0

0.04836

184.53

340.52

0.9425

1.5444

1.142

0.664

-

-

-

264.7

-

80.1

8.87

10.57

-12

0.38697

1367.7

0.04523

186.69

341.42

0.9507

1.5432

1.147

0.669

-

-

-

259.1

-

79.4

9.00

10.29

-10

0.41430

1360.4

0.04234

188.87

342.31

0.9589

1.5420

1.152

0.675

-

-

-

253.7

-

78.6

9.13

10.01

-8

0.44304

1353.0

0.03967

191.06

343.20

0.9671

1.5409

1.158

0.681

-

-

-

248.5

-

77.9

9.27

9.73

-6

0.47326

1345.5

0.03721

193.27

344.07

0.9754

1.5399

1.163

0.688

-

-

-

243.4

-

77.1

9.40

9.46

-4

0.50498

1337.9

0.03492

195.50

344.94

0.9836

1.5388

1.168

0.694

-

-

-

238.5

-

76.4

9.53

9.18

-2

0.53826

1330.3

0.03281

197.74

345.79

0.9918

1.5378

1.173

0.701

-

-

-

233.8

-

75.6

9.67

8.91

0

0.57313

1322.5

0.03084

200.00

346.63

1.0000

1.5368

1.178

0.709

-

-

-

229.2

11.69

74.8

9.80

8.64

2

0.60965

1314.7

0.02901

202.27

347.47

1.0082

1.5359

1.184

0.716

-

-

-

224.7

11.79

74.1

9.94

8.37

4

0.64786

1306.8

0.02731

204.57

348.29

1.0164

1.5350

1.189

0.724

-

-

-

220.4

11.90

73.3

10.07

8.11

6

0.68779

1298.8

0.02573

206.87

349.10

1.0246

1.5341

1.195

0.733

-

-

-

216.2

12.01

72.5

10.21

7.84

Temp., °C

Absolute pressure, MPa

Density, kg/m3

Volume, m3/kg

Enthalpy, kJ/kg

Entropy, kJ/kg·K

Specific heat, cp, kJ/kg·K

cp/cv

Velocity of sound, m/s

Viscosity,
10-6 Pa·s

Thermal cond., mW/m·K

Surface tension, mN/m

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

8

0.72951

1290.7

0.02426

209.19

349.89

1.0327

1.5332

1.200

0.741

-

-

-

212.2

12.12

71.8

10.35

7.58

10

0.77305

1282.4

0.02288

211.53

350.67

1.0409

1.5323

1.206

0.751

-

-

-

-

12.24

71.0

10.49

-

12

0.81845

1274.1

0.02160

213.88

351.44

1.0490

1.5315

1.211

0.760

-

-

-

-

12.36

70.2

10.63

-

14

0.86577

1265.6

0.02040

216.24

352.20

1.0572

1.5306

1.217

0.770

-

-

-

-

12.48

69.4

10.77

-

16

0.91505

1257.0

0.01927

218.62

352.94

1.0653

1.5298

1.223

0.781

-

-

-

-

12.60

68.7

10.92

-

18

0.96634

1248.3

0.01822

221.02

353.66

1.0734

1.5290

1.228

0.792

-

-

-

-

12.72

67.9

11.06

-

20

1.0197

1239.4

0.01723

223.42

354.36

1.0815

1.5282

1.234

0.804

-

-

-

-

12.84

67.1

11.21

-

22

1.0751

1230.4

0.01631

225.84

355.05

1.0896

1.5274

1.240

0.816

-

-

-

-

12.96

-

11.36

-

24

1.1327

1221.2

0.01544

228.28

355.72

1.0976

1.5265

1.246

0.828

-

-

-

-

13.08

-

11.51

-

26

1.1925

1211.9

0.01462

230.73

356.38

1.1057

1.5257

1.252

0.841

-

-

-

-

13.20

-

11.67

-

28

1.2545

1202.3

0.01385

233.19

357.01

1.1137

1.5249

1.258

0.855

-

-

-

-

13.32

-

11.82

-

30

1.3189

1192.6

0.01312

235.67

357.62

1.1217

1.5240

1.264

0.869

-

-

-

-

13.44

-

11.98

-

32

1.3856

1182.7

0.01244

238.16

358.20

1.1297

1.5231

1.270

0.884

-

-

-

-

13.56

-

12.14

-

34

1.4547

1172.6

0.01179

240.66

358.76

1.1377

1.5222

1.276

0.899

-

-

-

-

13.67

-

12.30

-

36

1.5262

1162.2

0.01118

243.18

359.30

1.1457

1.5213

1.283

0.915

-

-

-

-

13.78

-

12.47

-

38

1.6003

1151.6

0.01060

245.72

359.81

1.1537

1.5204

1.289

0.932

-

-

-

-

13.89

-

12.64

-

40

1.6770

1140.7

0.01005

248.27

360.28

1.1617

1.5194

1.295

0.949

-

-

-

-

13.99

-

12.81

-

42

1.7563

1129.6

0.00953

250.84

360.73

1.1696

1.5183

-

-

-

-

-

-

-

-

-

-

44

1.8383

1118.1

0.00904

253.43

361.14

1.1776

1.5172

-

-

-

-

-

-

-

-

-

-

46

1.9231

1106.3

0.00857

256.04

361.51

1.1855

1.5160

-

-

-

-

-

-

-

-

-

-

Temp., °C

Absolute pressure, MPa

Density, kg/m3

Volume, m3/kg

Enthalpy, kJ/kg

Entropy, kJ/kg·K

Specific heat, cp, kJ/kg·K

cp/cv

Velocity of sound, m/s

Viscosity,
10-6 Pa·s

Thermal cond., mW/m·K

Surface tension, mN/m

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

48

2.0107

1094.1

0.00813

258.66

361.85

1.1935

1.5148

-

-

-

-

-

-

-

-

-

-

50

2.1013

1081.5

0.00770

261.32

362.13

1.2015

1.5134

-

-

-

-

-

-

-

-

-

-

52

2.1949

1068.4

0.00730

263.99

362.37

1.2094

1.5120

-

-

-

-

-

-

-

-

-

-

54

2.2916

1054.9

0.00691

266.70

362.55

1.2175

1.5105

-

-

-

-

-

-

-

-

-

-

56

2.3915

1040.8

0.00654

269.44

362.67

1.2255

1.5088

-

-

-

-

-

-

-

-

-

-

58

2.4947

1026.0

0.00618

272.22

362.72

1.2336

1.5069

-

-

-

-

-

-

-

-

-

-

60

2.6014

1010.5

0.00584

275.05

362.70

1.2418

1.5049

-

-

-

-

-

-

-

-

-

-

65

2.8840

967.8

0.00504

282.38

362.19

1.2628

1.4988

-

-

-

-

-

-

-

-

-

-

70

3.1917

916.9

0.00429

290.31

360.80

1.2851

1.4905

-

-

-

-

-

-

-

-

-

-

75

3.5284

851.2

0.00355

299.48

357.79

1.3105

1.4780

-

-

-

-

-

-

-

-

-

-

80

3.9004

745.1

0.00271

312.52

350.37

1.3461

1.4533

-

-

-

-

-

-

-

-

-

-

82.2

4.075

561

0.0018

332

332

1.399

1.399

inf.

inf.

inf.

0

0

-

-

inf.

inf.

0.00