Refrigerant 503 (Azeotrope of R-23 and R-13) 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

-125

0.00628

1570.2

2.2340

56.55

258.14

0.3199

1.6807

-

-

-

-

-

-

-

-

-

-

-120

0.01002

1559.4

1.4445

61.41

260.35

0.3522

1.6512

0.502

-

-

-

-

-

-

126.6

-

-

-115

0.01544

1548.1

0.96468

66.36

262.54

0.3840

1.6244

0.541

-

-

-

-

-

-

123.6

-

-

-110

0.02307

1536.0

0.66318

71.39

264.71

0.4152

1.6002

0.577

0.498

-

-

-

-

-

120.7

-

-

-108

0.02689

1531.0

0.57512

73.42

265.57

0.4276

1.5911

0.591

0.501

-

-

-

-

-

119.5

-

-

-106

0.03119

1526.0

0.50073

75.46

266.43

0.4399

1.5824

0.605

0.504

-

-

-

-

-

118.3

-

-

-104

0.03604

1520.8

0.43763

77.52

267.28

0.4521

1.5739

0.619

0.508

-

-

-

-

-

117.2

-

-

-102

0.04148

1515.4

0.38388

79.58

268.12

0.4642

1.5658

0.632

0.511

-

-

-

-

-

116.0

-

-

-100

0.04756

1510.0

0.33792

81.66

268.96

0.4763

1.5580

0.645

0.514

-

-

-

385.6

-

114.8

-

-

-98

0.05432

1504.5

0.29845

83.75

269.79

0.4882

1.5504

0.658

0.518

-

-

-

374.0

-

113.7

-

-

-96

0.06184

1498.8

0.26444

85.85

270.62

0.5001

1.5431

0.671

0.521

-

-

-

362.7

-

112.5

-

-

-94

0.07016

1493.1

0.23503

87.96

271.43

0.5119

1.5361

0.684

0.524

-

-

-

351.8

-

111.3

-

-

-92

0.07934

1487.2

0.20951

90.08

272.24

0.5237

1.5292

0.697

0.528

-

-

-

341.2

-

110.2

-

-

-90

0.08944

1481.2

0.18729

92.21

273.04

0.5353

1.5227

0.710

0.531

-

-

-

331.0

-

109.0

-

-

-88

0.10052

1475.1

0.16788

94.35

273.83

0.5469

1.5163

0.723

0.535

-

-

-

321.2

-

107.9

-

-

-87.86

0.10132

1474.7

0.16664

94.50

273.89

0.5477

1.5159

0.724

0.535

-

-

-

320.5

-

107.8

-

-

-86

0.11265

1468.9

0.15088

96.50

274.62

0.5584

1.5101

0.736

0.538

-

-

-

311.6

-

106.7

-

-

-84

0.12589

1462.5

0.13594

98.66

275.39

0.5698

1.5042

0.749

0.542

-

-

-

302.5

-

105.6

-

-

-82

0.14031

1456.0

0.12277

100.82

276.15

0.5812

1.4984

0.762

0.546

-

-

-

293.6

-

104.4

-

-

-80

0.15597

1449.4

0.11113

103.00

276.90

0.5924

1.4928

0.776

0.550

-

-

-

285.0

-

103.2

-

-

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

-78

0.17294

1442.6

0.10082

105.18

277.64

0.6036

1.4874

0.789

0.554

-

-

-

276.8

-

102.1

-

-

-76

0.19130

1435.8

0.09165

107.37

278.37

0.6147

1.4821

0.803

0.558

-

-

-

268.8

-

100.9

-

-

-74

0.21111

1428.7

0.08349

109.56

279.09

0.6257

1.4770

0.818

0.562

-

-

-

261.1

-

99.8

-

-

-72

0.23245

1421.6

0.07621

111.76

279.80

0.6366

1.4720

0.832

0.567

-

-

-

253.7

-

98.6

-

-

-70

0.25539

1414.3

0.06969

113.97

280.50

0.6475

1.4672

0.847

0.571

-

-

-

246.5

-

97.5

-

-

-68

0.28001

1406.9

0.06384

116.19

281.18

0.6582

1.4625

0.862

0.576

-

-

-

239.6

-

96.4

-

-

-66

0.30638

1399.3

0.05858

118.41

281.85

0.6689

1.4579

0.878

0.581

-

-

-

232.9

-

95.2

-

-

-64

0.33458

1391.5

0.05384

120.64

282.51

0.6795

1.4535

0.894

0.586

-

-

-

226.5

-

94.1

-

-

-62

0.36468

1383.6

0.04956

122.87

283.15

0.6901

1.4491

0.911

0.591

-

-

-

220.3

-

92.9

-

-

-60

0.39677

1375.6

0.04569

125.11

283.78

0.7005

1.4449

0.928

0.597

-

-

-

214.3

-

91.8

-

11.24

-58

0.43092

1367.4

0.04219

127.36

284.39

0.7109

1.4408

0.946

0.602

-

-

-

208.5

-

90.6

-

10.88

-56

0.46722

1359.0

0.03900

129.62

284.99

0.7212

1.4367

0.965

0.608

-

-

-

202.9

-

89.5

-

10.51

-54

0.50574

1350.4

0.03610

131.88

285.57

0.7314

1.4328

0.984

0.614

-

-

-

197.6

-

88.3

-

10.15

-52

0.54657

1341.7

0.03346

134.15

286.14

0.7416

1.4289

1.003

0.621

-

-

-

192.4

-

87.2

-

9.80

-50

0.58980

1332.8

0.03105

136.42

286.69

0.7517

1.4251

1.024

0.627

-

-

-

187.3

-

86.0

-

9.44

-48

0.63550

1323.7

0.02884

138.71

287.22

0.7617

1.4214

1.045

0.634

-

-

-

182.5

-

84.9

-

9.09

-46

0.68376

1314.4

0.02682

141.00

287.73

0.7717

1.4177

1.067

0.641

-

-

-

177.8

-

83.7

-

8.74

-44

0.73467

1304.9

0.02497

143.30

288.23

0.7816

1.4141

1.090

0.649

-

-

-

173.3

-

82.6

-

8.40

-42

0.78832

1295.3

0.02326

145.62

288.70

0.7915

1.4105

1.113

0.656

-

-

-

168.9

-

81.4

-

8.06

-40

0.84479

1285.4

0.02169

147.94

289.15

0.8014

1.4070

1.138

0.664

-

-

-

164.7

-

80.3

-

7.72

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

-38

0.90418

1275.3

0.02025

150.28

289.58

0.8111

1.4035

1.163

0.673

-

-

-

160.6

-

79.1

-

7.38

-36

0.96658

1264.9

0.01891

152.63

289.99

0.8209

1.4001

1.190

0.681

-

-

-

156.7

-

77.9

-

7.05

-34

1.0321

1254.3

0.01767

155.00

290.37

0.8306

1.3966

1.217

0.690

-

-

-

152.9

-

76.8

-

6.72

-32

1.1008

1243.5

0.01653

157.38

290.72

0.8403

1.3932

1.246

0.699

-

-

-

149.2

-

75.6

-

6.40

-30

1.1728

1232.5

0.01547

159.78

291.05

0.8499

1.3898

1.275

0.709

-

-

-

145.7

-

74.5

-

6.08

-28

1.2482

1221.1

0.01448

162.20

291.34

0.8596

1.3864

1.306

0.719

-

-

-

142.2

-

73.3

-

5.76

-26

1.3271

1209.5

0.01356

164.64

291.60

0.8692

1.3830

1.337

0.729

-

-

-

138.9

-

72.1

-

5.45

-24

1.4096

1197.6

0.01271

167.11

291.83

0.8789

1.3795

1.370

0.740

-

-

-

135.7

-

71.0

-

5.14

-22

1.4958

1185.3

0.01191

169.60

292.02

0.8886

1.3760

1.404

0.751

-

-

-

132.5

-

69.8

-

-

-20

1.5858

1172.8

0.01116

172.12

292.17

0.8983

1.3725

1.440

0.762

-

-

-

-

-

68.6

-

-

-18

1.6798

1159.8

0.01047

174.68

292.27

0.9080

1.3689

-

-

-

-

-

-

-

-

-

-

-16

1.7778

1146.5

0.00981

177.27

292.33

0.9178

1.3652

-

-

-

-

-

-

-

-

-

-

-14

1.8800

1132.8

0.00920

179.91

292.33

0.9276

1.3615

-

-

-

-

-

-

-

-

-

-

-12

1.9865

1118.7

0.00862

182.59

292.28

0.9376

1.3576

-

-

-

-

-

-

-

-

-

-

-10

2.0974

1104.1

0.00808

185.32

292.16

0.9476

1.3536

-

-

-

-

-

-

-

-

-

-

-8

2.2129

1088.9

0.00757

188.11

291.98

0.9577

1.3495

-

-

-

-

-

-

-

-

-

-

-6

2.3330

1073.2

0.00709

190.96

291.71

0.9680

1.3451

-

-

-

-

-

-

-

-

-

-

-4

2.4580

1056.9

0.00663

193.89

291.35

0.9785

1.3406

-

-

-

-

-

-

-

-

-

-

-2

2.5880

1039.9

0.00619

196.90

290.90

0.9891

1.3358

-

-

-

-

-

-

-

-

-

-

0

2.7230

1022.0

0.00578

200.00

290.32

1.0000

1.3307

-

-

-

-

-

-

-

-

-

-

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

2

2.8634

1003.2

0.00539

203.21

289.62

1.0112

1.3252

-

-

-

-

-

-

-

-

-

-

4

3.0092

983.3

0.00501

206.55

288.76

1.0227

1.3193

-

-

-

-

-

-

-

-

-

-

6

3.1606

962.0

0.00465

210.04

287.70

1.0346

1.3128

-

-

-

-

-

-

-

-

-

-

8

3.3177

939.1

0.00430

213.72

286.42

1.0470

1.3056

-

-

-

-

-

-

-

-

-

-

10

3.4809

913.9

0.00395

217.62

284.85

1.0600

1.2975

-

-

-

-

-

-

-

-

-

-

12

3.6502

885.8

0.00361

221.82

282.90

1.0739

1.2881

-

-

-

-

-

-

-

-

-

-

14

3.8258

853.1

0.00327

226.45

280.43

1.0890

1.2770

-

-

-

-

-

-

-

-

-

-

16

4.0080

812.6

0.00292

231.75

277.17

1.1061

1.2632

-

-

-

-

-

-

-

-

-

-

18

4.1969

752.8

0.00255

238.52

272.65

1.1276

1.2449

-

-

-

-

-

-

-

-

-

-

19.5

4.357

564

0.00177

258.1

258.1

1.188

1.188

inf.

inf.

inf.

0

0

-

-

inf.

inf.

0.00