> Return to SRD 134, Index of Semiconductor Process Gases
|
AMMONIA
|
M.W. [1]
17.030
|
N.B.P. [1]
239.82 K
|
T.P. [1]
195.5K
|
|
NH3
|
Pc [1]
11.333 MPa
|
Tc [1]
405.4K
|
Vc[1]
0.07569 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
|
|
Vapor Pressure
MPa
|
B(T)
cm3·mol-1
|
dB/dT·T
cm3·mol-1
|
C(T)
cm6·mol-2
|
dC/dT·T
cm6·mol-2
|
λ
mW/(m·K)
|
η
µPa·s
|
|
Estimated
Uncertainty
|
2%
|
0.2%
|
Densities calculated should be good to 0.5% away from coexistence curve.
|
1%
|
3%
|
|
Reference
|
1
|
-
|
1
|
1
|
1
|
1
|
1
|
1
|
|
200
|
4.114
|
0.0087
|
-1028.60
|
4285.60
|
-584290.0
|
-
|
19.67
|
6.96
|
|
210
|
4.118
|
0.0177
|
-843.29
|
3354.75
|
-439050.0
|
-
|
19.83
|
7.23
|
|
220
|
4.127
|
0.338
|
-703.65
|
2678.06
|
-301310.0
|
-
|
20.08
|
7.52
|
|
230
|
4.139
|
0.604
|
-596.21
|
2176.21
|
-197260.0
|
-
|
20.41
|
7.82
|
|
240
|
4.153
|
0.1022
|
-511.97
|
1796.88
|
-125070.0
|
-
|
20.83
|
8.13
|
|
250
|
4.171
|
0.1649
|
-444.79
|
1505.20
|
-76986.0
|
-
|
21.33
|
8.45
|
|
260
|
4.191
|
0.2553
|
-390.37
|
1277.43
|
-45675.0
|
-
|
21.91
|
8.78
|
|
270
|
4.213
|
0.3811
|
-345.67
|
1096.93
|
-25596.0
|
-
|
22.57
|
9.12
|
|
280
|
4.238
|
0.5509
|
-308.49
|
952.03
|
-12886.0
|
-
|
23.30
|
9.47
|
|
290
|
4.264
|
0.7744
|
-277.21
|
834.21
|
-4958.4
|
-
|
24.11
|
9.83
|
|
300
|
4.292
|
1.0617
|
-250.61
|
737.37
|
-111.8
|
-
|
24.99
|
10.19
|
|
310
|
4.321
|
1.4240
|
-227.78
|
656.92
|
2761.2
|
-
|
25.94
|
10.55
|
|
320
|
4.353
|
1.8728
|
-208.02
|
589.44
|
4377.9
|
-
|
26.95
|
10.92
|
|
330
|
4.385
|
2.4205
|
-190.78
|
532.32
|
5201.9
|
-
|
28.03
|
11.30
|
|
340
|
4.419
|
3.0802
|
-175.63
|
483.58
|
5532.2
|
-
|
29.17
|
11.67
|
|
350
|
4.453
|
3.8660
|
-162.23
|
441.67
|
5561.4
|
-
|
30.37
|
12.05
|
|
360
|
4.489
|
4.7929
|
-150.31
|
405.32
|
5412.9
|
-
|
31.62
|
12.43
|
|
370
|
4.526
|
5.8778
|
-139.65
|
373.66
|
5165.5
|
-
|
32.93
|
12.82
|
|
380
|
4.564
|
7.1402
|
-130.06
|
345.86
|
4869.1
|
-
|
34.29
|
13.20
|
|
390
|
4.603
|
8.6045
|
-121.40
|
321.32
|
4554.7
|
-
|
35.69
|
13.59
|
|
400
|
4.643
|
10.3050
|
-113.55
|
299.54
|
4241.1
|
-
|
37.13
|
13.98
|
|
410
|
4.683
|
-
|
-106.39
|
280.11
|
3939.6
|
-
|
38.61
|
14.37
|
|
420
|
4.724
|
-
|
-99.86
|
262.70
|
3656.0
|
-
|
40.13
|
14.75
|
|
430
|
4.766
|
-
|
-93.86
|
247.02
|
3393.4
|
-
|
41.68
|
15.14
|
|
440
|
4.808
|
-
|
-88.35
|
232.85
|
3152.6
|
-
|
43.26
|
15.53
|
|
450
|
4.851
|
-
|
-83.26
|
220.00
|
2933.3
|
-
|
44.85
|
15.92
|
|
460
|
4.894
|
-
|
-78.56
|
208.28
|
2734.5
|
-
|
46.47
|
16.31
|
|
470
|
4.938
|
-
|
-74.19
|
197.58
|
2554.9
|
-
|
48.11
|
16.70
|
|
480
|
4.982
|
-
|
-70.14
|
187.77
|
2393.0
|
-
|
49.75
|
17.09
|
|
490
|
5.026
|
-
|
-66.36
|
178.74
|
2247.1
|
-
|
51.40
|
17.48
|
|
500
|
5.071
|
-
|
-62.83
|
170.42
|
2115.8
|
-
|
53.05
|
17.86
|
|
550
|
5.301
|
-
|
-48.25
|
137.02
|
1631.4
|
-
|
61.16
|
19.78
|
|
600
|
5.535
|
-
|
-37.41
|
113.18
|
1341.7
|
-
|
68.55
|
21.68
|
|
650
|
5.773
|
-
|
-29.08
|
95.39
|
1165.0
|
-
|
74.51
|
23.55
|
|
700
|
6.011
|
-
|
-22.54
|
81.68
|
1055.7
|
-
|
78.26
|
25.39
|
|
750
|
6.249
|
-
|
-17.29
|
70.81
|
987.8
|
-
|
78.96
|
27.20
|
|
800
|
6.484
|
-
|
-13.01
|
62.00
|
946.3
|
-
|
75.67
|
29.00
|
|
850
|
6.716
|
-
|
-9.47
|
54.74
|
922.1
|
-
|
67.41
|
30.79
|
|
900
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
950
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
|
1000
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
References:
- Lemmon, E.W. and McLinden, M.O., NIST Standard Reference Database 23: NIST Reference Fluid Thermodynamic and Transport Properties, Version 7.0 Beta, National Institute of Standards and Technology, Standard Reference Data Program, Gaithersburg, 2001.
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:
John Hurly
301-975-2476 Telephone
john.hurly@nist.gov
Keith Gillis
301-975-2468
keith.gillis@nist.gov
100 Bureau Drive, M/S 8360
Gaithersburg, MD 20899-8360
