Thermal Properties of Common Gases
Substance
Density
(g/cm
3
)
Specific Heat
(Cal/g/
°
C)
Thermal Conductivity
(W/m/
°
C)
Melting Point
(
°
C)
Boiling Point
(
°
C)
Acetylene
0.001089
0.3832
0.018602
-81.3
-83.6
Air
0.012015
0.2400
0.025956
-
-
Ammonia
0.000769
0.5202
0.022207
-75
-33.5
Argon
0.001655
0.1233
0.016295
-189.2
-185.7
Butane-iso
0.002563
-
0.01367
-145
-10.2
Butane-n
0.002403
-
0.012632
-135
0.6
Carbon Dioxide
0.001833
0.2025
0.017304
-78.5
Sublimates
Carbon Monoxide
0.001161
0.2425
0.025956
-207
-191.5
Chlorine
0.002969
0.1125
0.008364
-101.6
-34.7
Chlorodifluoromethane (F-22)
0.00463
0.1510
-
-160
-40.7556
Chloroform
0
0.1440
0.014016
-
61.72222
Cyanogen
0.002243
0.4095
-
-27.9
-21.17
Dichlorodifluoromethane (F-12)
0.005271
0.1410
0.008364
-157.778
-29.7889
Ethane
0.001346
0.3861
0.018746
-172
-88.3
Chloride
0.002868
0.2750
0.008796
-138.722
12.2
Ethylene
0.00125
0.3990
0.017737
-169.4
-103.8
Fluorine
0.001697
0.1820
0.025379
-223
-187
Helium
0.000165
1.2500
0.14247
-272
-268.94
Hydrogen
8.97E-05
3.4090
0.167272
-259.139
-253.197
Hydrogen Bromide
0.003645
0.0820
-
-86.7
-68.7
Hydrogen Chloride
0.001639
0.1940
0.013122
-111.3
-83.1
Hydrogen Fluoride
0.000857
-
-
-92.3
-36.7
Hydrogen Iodide
0.005687
0.0600
-
-51.3
-35.7
Hydrogen Sulfide
0.001538
0.2451
0.013122
-86
-62
Methane
0.000714
0.5929
0.030859
-182.5
-161.4
Methyl Chloride
0.002275
0.2400
0.009344
-103.6
-23.73
Methyl Ether
0.002099
-
-
-138
-24.9
Methyl Fluoride
0.001538
-
-
-
-78
Neon
0.000897
-
0.046432
-248.672
-245.9
Nitric Oxide
0.001245
0.2320
0.02388
-167
-153
Nitrogen
0.001169
0.2438
0.026821
-209.861
-195.8
Nitrous Oxide
0.00197
0.2126
0.015228
-102.4
-89.8
Oxygen
0.00133
0.2175
0.025956
-218.4
-183
Phosphine
0.001522
-
-
-133.5
-87.4
Propane
0.002019
-
0.013987
-189.9
-44.5
Silicone Tetrafluoride
0.004678
-
-
-
-68
Sulfur Dioxide
0.002659
0.1544
0.010094
-76
-10
Water Vapor
0.000596
0.4820
0.024514
0
-83.6
Xenon
0.005847
-
-
-140
-
