Refrigerant 23 (Trifluoromethane) 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., °F

Pressure, psia

Density, lb/ft3

Volume, ft3/lb

Enthalpy, Btu/lb

Entropy, Btu/lb·°F

Specific heat, cp, Btu/lb·°F

cp/cv

Velocity of sound, ft/s

Viscosity, lbm/ft·h

Thermal cond., Btu/h·ft·°F

Surface tension, dyne/cm

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

-160

2.774

94.42

16.315

-35.171

75.195

-0.09766

0.27063

0.1363

1.2960

517

-155

3.442

93.95

13.334

-33.755

75.756

-0.09298

0.26646

0.1380

1.2969

521

-150

4.237

93.46

10.981

-32.354

76.309

-0.08842

0.26247

0.1399

1.2980

524

-145

5.177

92.97

9.1062

-30.964

76.853

-0.08398

0.25866

0.1419

1.2995

527

-140

6.279

92.46

7.6019

-29.581

77.388

-0.07962

0.25500

0.1441

1.3014

529

-135

7.566

91.95

6.3857

-28.201

77.913

-0.07535

0.25149

0.1464

1.3036

532

-130

9.058

91.42

5.3956

-26.822

78.427

-0.07114

0.24811

0.1488

1.3062

535

-125

10.778

90.88

4.5844

-25.440

78.930

-0.06699

0.24487

0.1514

1.3091

537

-120

12.751

90.32

3.9155

-24.052

79.421

-0.06289

0.24174

0.1542

1.3125

539

-115.64

14.696

89.83

3.4267

-22.837

79.839

-0.05935

0.23911

0.1567

1.3157

541

-115

15.003

89.76

3.3607

-22.657

79.900

-0.05882

0.23873

0.1571

1.3162

541

-110

17.561

89.18

2.8981

-21.252

80.366

-0.05479

0.23582

0.1602

1.3204

543

-105

20.452

88.59

2.5102

-19.835

80.818

-0.05078

0.23301

0.1634

1.3251

545

-100

23.708

87.98

2.1834

-18.405

81.256

-0.04680

0.23029

0.1669

1.3302

546

-98

25.118

87.74

2.0672

-17.829

81.428

-0.04521

0.22923

0.1683

1.3324

547

-96

26.594

87.49

1.9584

-17.251

81.597

-0.04363

0.22818

0.1698

1.3346

547

-94

28.137

87.24

1.8565

-16.670

81.764

-0.04204

0.22714

0.1713

1.3370

548

-92

29.748

86.98

1.7609

-16.087

81.928

-0.04046

0.22612

0.1728

1.3394

548

-90

31.431

86.73

1.6712

-15.501

82.090

-0.03888

0.22511

0.1744

1.3419

549

-88

33.187

86.47

1.5871

-14.912

82.249

-0.03730

0.22411

0.1760

1.3445

549

Temp., °F

Pressure, psia

Density, lb/ft3

Volume, ft3/lb

Enthalpy, Btu/lb

Entropy, Btu/lb·°F

Specific heat, cp, Btu/lb·°F

cp/cv

Velocity of sound, ft/s

Viscosity, lbm/ft·h

Thermal cond., Btu/h·ft·°F

Surface tension, dyne/cm

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

-86

35.019

86.21

1.5079

-14.321

82.407

-0.03573

0.22313

0.1776

1.3472

550

-84

36.927

85.95

1.4336

-13.728

82.561

-0.03416

0.22216

0.1792

1.3500

550

-82

38.916

85.68

1.3636

-13.132

82.713

-0.03258

0.22119

0.1809

1.3529

550

-80

40.986

85.42

1.2977

-12.533

82.863

-0.03101

0.22025

0.1826

1.3559

551

-78

43.140

85.15

1.2356

-11.931

83.010

-0.02945

0.21930

0.1844

1.3589

551

-76

45.380

84.87

1.1771

-11.327

83.155

-0.02788

0.21838

0.1862

1.3621

551

13.68

-74

47.709

84.60

1.1219

-10.720

83.297

-0.02632

0.21746

0.1880

1.3654

551

13.43

-72

50.128

84.32

1.0698

-10.110

83.436

-0.02475

0.21655

0.1899

1.3688

551

13.18

-70

52.639

84.04

1.0207

-9.497

83.573

-0.02319

0.21565

0.1918

1.3722

551

12.93

-68

55.246

83.76

0.9742

-8.882

83.707

-0.02163

0.21477

0.1937

1.3758

552

12.69

-66

57.951

83.47

0.9302

-8.264

83.839

-0.02007

0.21389

0.1957

1.3796

552

12.44

-64

60.755

83.18

0.8887

-7.644

83.968

-0.01852

0.21302

0.1977

1.3834

552

12.20

-62

63.660

82.89

0.8493

-7.021

84.094

-0.01696

0.21216

0.1997

1.3874

552

11.96

-60

66.671

82.59

0.8121

-6.395

84.217

-0.01541

0.21131

0.2018

1.3915

552

11.72

-58

69.787

82.30

0.7768

-5.767

84.337

-0.01386

0.21047

0.2039

1.3957

551

11.48

-56

73.013

82.00

0.7433

-5.136

84.455

-0.01231

0.20963

0.2061

1.4000

551

11.24

-54

76.350

81.69

0.7116

-4.502

84.570

-0.01076

0.20881

0.2083

1.4045

551

11.01

-52

79.800

81.38

0.6814

-3.866

84.682

-0.00922

0.20799

0.2106

1.4092

551

10.77

-50

83.367

81.07

0.6528

-3.228

84.791

-0.00767

0.20718

0.2129

1.4140

551

10.54

-48

87.052

80.76

0.6257

-2.587

84.897

-0.00614

0.20637

0.2152

1.4190

550

10.31

Temp., °F

Pressure, psia

Density, lb/ft3

Volume, ft3/lb

Enthalpy, Btu/lb

Entropy, Btu/lb·°F

Specific heat, cp, Btu/lb·°F

cp/cv

Velocity of sound, ft/s

Viscosity, lbm/ft·h

Thermal cond., Btu/h·ft·°F

Surface tension, dyne/cm

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

-46

90.858

80.44

0.5998

-1.944

85.000

-0.00460

0.20558

0.2176

1.4241

550

10.08

-44

94.787

80.12

0.5753

-1.298

85.100

-0.00306

0.20479

0.2200

1.4294

550

9.85

-42

98.842

79.80

0.5519

-0.650

85.197

-0.00153

0.20401

0.2225

1.4349

549

9.62

-40

103.03

79.47

0.5296

0.000

85.291

0.00000

0.20323

0.2251

1.4405

738

549

0.396

0.0595

0.00654

9.40

-38

107.34

79.14

0.5085

0.652

85.382

0.00153

0.20246

0.2277

1.4464

719

548

0.391

0.0590

0.00661

9.17

-36

111.79

78.80

0.4883

1.307

85.469

0.00305

0.20170

0.2303

1.4525

701

548

0.386

0.0585

0.00668

8.95

-34

116.37

78.47

0.4690

1.964

85.553

0.00457

0.20094

0.2330

1.4588

684

547

0.380

0.0581

0.00675

8.73

-32

121.09

78.12

0.4507

2.623

85.634

0.00609

0.20019

0.2358

1.4653

667

547

0.375

0.0576

0.00683

8.51

-30

125.95

77.78

0.4332

3.284

85.711

0.00761

0.19944

0.2386

1.4720

651

546

0.370

0.0572

0.00691

8.29

-25

138.74

76.89

0.3928

4.947

85.888

0.01138

0.19760

0.2460

1.4901

613

544

0.357

0.0561

0.00711

7.76

-20

152.46

75.98

0.3567

6.622

86.042

0.01514

0.19577

0.2538

1.5099

578

542

0.344

0.0299

0.0550

0.00732

7.23

-15

167.17

75.04

0.3244

8.311

86.171

0.01888

0.19397

0.2622

1.5318

546

540

0.331

0.0304

0.0540

0.00755

6.72

-10

182.90

74.07

0.2954

10.013

86.274

0.02260

0.19219

0.2711

1.5561

517

537

0.318

0.0309

0.0530

0.00778

6.22

-5

199.70

73.07

0.2692

11.730

86.346

0.02630

0.19041

0.2808

1.5833

491

534

0.306

0.0314

0.0519

0.00803

0

217.62

72.03

0.2457

13.462

86.387

0.02999

0.18863

0.2912

1.6138

466

530

0.293

0.0319

0.0508

0.00829

5

236.71

70.96

0.2243

15.213

86.392

0.03367

0.18685

0.3027

1.6484

444

527

0.281

0.0324

0.0497

0.00856

10

257.02

69.84

0.2049

16.985

86.358

0.03735

0.18505

0.3153

1.6879

423

523

0.269

0.0330

0.0484

0.00884

15

278.61

68.67

0.1872

18.783

86.278

0.04103

0.18323

0.3293

1.7334

403

518

0.0337

20

301.55

67.46

0.1710

20.611

86.148

0.04474

0.18136

0.3452

1.7866

385

513

0.0343

25

325.90

66.19

0.1562

22.479

85.959

0.04847

0.17944

0.3634

1.8495

367

508

0.0351

Temp., °F

Pressure, psia

Density, lb/ft3

Volume, ft3/lb

Enthalpy, Btu/lb

Entropy, Btu/lb·°F

Specific heat, cp, Btu/lb·°F

cp/cv

Velocity of sound, ft/s

Viscosity, lbm/ft·h

Thermal cond., Btu/h·ft·°F

Surface tension, dyne/cm

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

Vapor

Liquid

Vapor

Liquid

Vapor

Liquid

Vapor

30

351.74

64.85

0.1426

24.396

85.701

0.05225

0.17745

0.3847

1.9250

349

502

0.0359

35

379.14

63.43

0.1300

26.375

85.361

0.05611

0.17536

0.4100

2.0176

332

495

0.0368

40

408.19

61.93

0.1183

28.434

84.923

0.06008

0.17314

0.4411

2.1338

314

488

0.0379

45

438.99

60.32

0.1074

30.598

84.365

0.06421

0.17074

0.4803

2.2840

296

481

0.0390

50

471.64

58.58

0.0971

32.901

83.654

0.06855

0.16813

0.5319

2.4859

277

472

0.0402

55

506.27

56.68

0.0874

35.389

82.745

0.07319

0.16520

0.6039

2.7721

257

463

0.0416

60

543.01

54.55

0.0780

38.138

81.561

0.07827

0.16182

0.7125

3.2100

236

452

65

581.99

52.08

0.0688

41.270

79.972

0.08400

0.15777

0.8981

3.9663

213

441

70

623.39

49.05

0.0594

45.032

77.695

0.09085

0.15252

1.2953

5.5959

75

667.39

44.71

0.0488

50.138

73.842

0.10012

0.14445

78.66

701.4

32.78

0.0305

61.455

61.455

0.1209

0.1209

inf.

inf.

inf.

0

0

inf.

inf.

0