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ARGON

M.W. [1]

39.948

N.B.P [2]

87.28 K

T.P [2]

83.78K

Ar

Pc [2]

4.898 MPa

Tc [2]

150.86 K

Vc [2]

0.07459 m3/kmol

Note: In the tables, #RED is used for properties obtained from estimation methods. *,† Other colors are used to distinguish between differing data sets within a single column. If no uncertainty is specified, then no uncertainty was provided by the reference.

T

K

 semiprop equation

Vapor Pressure

kPa

B(T)

cmmol-1

dB/dT·T

cm3·mol-1

C(T)

cmmol-2

dC/dT·T

cmmol-2

λ

mW/(m·K)

η

µPa·s

Estimated
Uncertainty

-

-

5%

-

10%

-

3%

3%

Reference

-

-

3

3

3

3

3

3

100

2.5

-

-181.99

334.7

-972.1

30165

6.4

8.2

110

2.5

-

-152.82

279.5

1015.8

13432

7.0

9.0

120

2.5

-

-130.32

238.9

1804.8

5534

7.6

9.7

130

2.5

-

-112.47

208.0

2076.3

1643

8.2

10.5

140

2.5

-

-97.98

183.7

2118.4

-307

8.8

11.3

150

2.5

-

-85.99

164.2

2060.4

-1271

9.5

12.1

160

2.5

-

-75.92

148.3

1962.1

-1719

10.1

12.9

170

2.5

-

-67.34

135.0

1851.7

-1891

10.7

13.7

180

2.5

-

-59.95

123.7

1742.4

-1914

11.3

14.4

190

2.5

-

-53.53

114.1

1640.2

-1858

11.9

15.2

200

2.5

-

-47.89

105.8

1547.2

-1763

12.4

15.9

210

2.5

-

-42.91

98.6

1463.9

-1651

13.0

16.7

220

2.5

-

-38.47

92.2

1389.8

-1533

13.6

17.4

230

2.5

-

-34.50

86.5

1324.2

-1417

14.1

18.1

240

2.5

-

-30.93

81.5

1266.3

-1307

14.7

18.8

250

2.5

-

-27.69

76.9

1215.1

-1203

15.2

19.5

260

2.5

-

-24.76

72.9

1169.7

-1108

15.7

20.2

270

2.5

-

-22.08

69.2

1129.6

-1020

16.3

20.8

280

2.5

-

-19.63

65.8

1094.0

-941

16.8

21.5

290

2.5

-

-17.37

62.7

1062.2

-868

17.3

22.1

300

2.5

-

-15.30

59.9

1033.9

-802

17.8

22.8

310

2.5

-

-13.38

57.2

1008.6

-743

18.3

23.4

320

2.5

-

-11.60

54.8

985.9

-689

18.8

24.0

330

2.5

-

-9.944

52.6

965.5

-640

19.3

24.7

340

2.5

-

-8.406

50.5

947.1

-595

19.7

25.3

350

2.5

-

-6.970

48.6

930.4

-555

20.2

25.9

360

2.5

-

-5.627

46.8

915.3

-519

20.7

26.5

370

2.5

-

-4.369

45.1

901.5

-485

21.1

27.0

380

2.5

-

-3.188

43.5

889.0

-455

21.6

27.6

390

2.5

-

-2.078

42.0

877.5

-428

22.0

28.2

400

2.5

-

-1.033

40.6

867.0

-403

22.5

28.8

410

2.5

-

-0.048

39.3

857.3

-380

22.9

29.3

420

2.5

-

0.883

38.0

848.4

-359

23.4

29.9

430

2.5

-

1.763

36.8

840.2

-341

23.8

30.4

440

2.5

-

2.596

35.7

832.6

-323

24.2

31.0

450

2.5

-

3.386

34.6

825.5

-308

24.6

31.5

460

2.5

-

4.136

33.6

818.9

-293

25.1

32.0

470

2.5

-

4.848

32.6

812.7

-280

25.5

32.6

480

2.5

-

5.526

31.7

807.0

-268

25.9

33.1

490

2.5

-

6.171

30.8

801.6

-257

26.3

33.6

500

2.5

-

6.785

30.0

796.5

-247

26.7

34.1

550

2.5

-

9.466

26.3

774.9

-207

28.7

36.6

600

2.5

-

11.623

23.3

758.1

-182

30.5

39.0

650

2.5

-

13.388

20.8

744.3

-165

32.4

41.3

700

2.5

-

14.851

18.7

732.5

-154

34.1

43.6

750

2.5

-

16.078

16.9

722.0

-148

35.8

45.7

800

2.5

-

17.117

15.3

712.6

-144

37.5

47.9

850

2.5

-

18.005

14.0

703.9

-142

39.1

49.9

900

2.5

-

18.768

12.8

695.8

-142

40.7

51.9

950

2.5

-

19.428

11.7

688.1

-142

42.2

53.9

1000

2.5

-

20.003

10.7

680.8

-144

43.8

55.8



References:

  1. IUPAC, "Atomic Weights of the Elements 1993," J. Phys. Chem. Ref. Data (1995, 24, 1561).
  2. IUPAC, "International Thermodynamic Tables of the Fluid State - Argon," Butterworths, London (1972).
  3. Aziz, R.A., "A Highly Accurate Interatomic Potential for Argon," J. Chem. Phys. (1993, 99, 4518).




Footnote:

#RED is used for properties obtained from estimation methods.
*BLUE, ORANGE Other colors are used to distinguish between differing data sets within a single column.





Contacts:


Keith Gillis
301-975-2468
keith.gillis@nist.gov

Michael Moldover
301-975-2459
michael.moldover@nist.gov

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Gaithersburg, MD 20899-8360