Density of Gases

The density and molar mass of common gases at standard test conditions

0
1986

The density of gases have been listed below in alphabetical order in the units of both metric and imperial. The chemical formula as well as molar mass has also been listed.
below the table is an image version for offline viewing

Gas Chemical Formula Molar mass Density Density
g/mol kg/m3 lb/ft3
Air 28.96 1.2740 0.0748
Ammonia NH3 17.03 0.7491 0.0440
Argon Ar 39.95 1.7572 0.1032
Bio Gas 35% CO2 65% CH4 25.83 1.1363 0.0668
Butane C4H10 58.12 2.5567 0.1502
Butylene C4H8 56.11 2.4681 0.1450
Carbon Dioxide CO2 44.01 1.9359 0.1137
Carbon Monoxide CO 28.01 1.2321 0.0724
Chlorine Cl2 70.91 3.1205 0.1833
Ethane C2H6 30.07 1.3227 0.0777
Ethylene C2H4 28.05 1.2340 0.0725
Helium He 4.00 0.1761 0.0103
Hexane C6H14 86.18 3.7908 0.2227
Hydrogen H2 2.02 0.0887 0.0052
Methane CH4 16.04 0.7057 0.0415
Nitrogen N2 28.01 1.2323 0.0724
Oxygen O2 32.00 1.4076 0.0827
Pentane C5H12 72.15 3.1738 0.1865
Propane C3H8 44.10 1.9397 0.1140
Propylene C3H6 42.08 1.8510 0.1088
Sulfur Dioxide SO2 64.06 2.8191 0.1656
Density of Gases tables
Density of Gases tables

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