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Physical Properties of Industrial Gases and Common Industrial Chemicals

(Metric Units)

 

  

Boiling Point
@ 101.325 kPa
Gas Phase Properties
@ 0 C & @ 101.325 kPa
Liquid Phase Properties
@ B.P., & @ 101.325 kPa
Triple Point Critical Point
Temp. Latent Heat of Vaporization Specific Gravity Specific Heat (Cp) Density Specific Gravity Specific Heat (Cp) Temp. Pressure Temp. Pressure Density
Substance Chemical
Symbol
Mol.
Weight
C kJ/kg Air = 1 kJ/kg C kg/m3 Water = 1 kJ/kg C C kPa abs C kPa abs kg/m3
Air -- 28.98 -194.3 205.0 1 1.01 1.2929 0.873 1.865 -213.4 -- -140.6 3771 351
Oxygen O2 32.00 -182.96 213.0 1.113 0.9191 1.429 1.14 1.669 -218.8 0.148 -188.57 5043 436.1
Nitrogen N2 28.01 -195.8 199.1 0.9737 1.04 1.2506 0.808 2.042 -210 12.5 -146.9 3399 314.9
Argon Ar 39.95 -185.9 162.3 1.39 0.523 1.7837 1.40 1.078 -189.3 68.9 -122.3 4905 535.6
Carbon Dioxide CO2 44.01 -78.5 571.3 1.539 0.85 1.9769 1.18c -- -56.6 517.3 31.1 7382 468
Hydrogen H2 2.02 -252.8 446.0 0.06998 14.34 0.08988 0.071 9.668 -259.2 7.205 -239.96 1315 30.12
Carbon Monoxide CO 28.01 -191.5 215.8 0.9736 1.037 1.2504 0.79 -- -205.1 15.2 -140.2 3499 301
Water H2O 18.02 100.0 2256.9 -- 2.0418d .58958d 0.95855 4.216 0.01 101.9 373.99 22064 322
Methane CH4 16.04 -161.49 509.91 0.559 2.207 0.717 0.425 3.481 -182.5 11.65 -82.1 4640.86 161.63
Ammonia NH3 17.03 -33.3 1371.0 0.6003 2.191 0.771 0.6819 -- -77.7 6.1 133 11350 235
Helium He 4.00 -268.9 20.28 0.139 5.19 0.17585 0.124 4.545 NONE NONE -267.9 227 69.64
Neon Ne 20.18 -246.0 86.3 0.701 1.05 0.9004 1.207 1.877 -248.6 43.4 -228.8 2654 483
Krypton Kr 83.80 -153.4 107.5 2.887 0.251 3.708 2.41 0.533 -157.4 73.2 -63.8 55402 908
Xenon Xe 131.30 -108.2 96.3 4.55 0.269 5.85 3.06 0.34 -111.8 81.6 16.6 5840 1100
Ozone O3 47.99 -111.3 151.9 1.656 39.37 -- 1.352 -- -192.5 11.4 -12.15 55.73 540
Hydrogen Sulfide H2S 34.08 -60.2 547.83 1.198 0.147 1.539 0.9136 -- -- -- 100.5 9008 346
Sulfur Dioxide SO2 64.06 -10.0 389.3 2.279 0.622 2.9269 1.46 -- -75.5 1.675 157.4 7866.9 520
Ethane C2H6 30.07 -88.63 489.41 1.056 1.715 1.3566 0.546 -- -183.3 101.325 32.2 4883.9 161.63
Ethylene C2H4 28.05 -103.8 484.0 0.978 1.516 1.2604 0.567 -- -169.2 0.1014 9.9 5041 203
Acetylene C2H2 26.04 -83.3 614.0c 0.906 1.6 1.1716 0.613 -- -82.2 122 36 6250 228
Propane C3H8 44.10 -42.04 425.77 1.573 1.625 2.02 0.58 -- -- -- 96.672 4249.24 216.25
Propylene C3H6 42.08 -47.72 437.71 1.481 1.486 1.769 0.61 -- -- -- 91.77 4619.49 232.27
Methanol CH3OH 32.04 64.7 1100.2 --  1.37 1.43 0.795 2.533 -97.5 --  239.4 8084 271.5

a Sublimation point       b Sublimation Enthalpy       c Triple point       d Boiling point


Universal Industrial Gases, Inc.
2200 Northwood Ave. Suite 3
Easton, Pennsylvania 18045-2239 USA

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