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Density and molecular weight of common materials

Including air, ammonia, methane, water

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1. Data table


Table first part

Density
lb/ft3 at 14.7 psia and 60F
Density
kg/m3 at 1013 mbar abs and 15.6c

Material Formula Liquid Gas Liquid Gas Molecular weight
Acetic Acid CH3-CO-OH 65.7
1052.4
66.1
Acetone CH3-CO-CH3 49.4
791.3
58.1
Acetylene C2H2
0.069
1.11 26
Air O2+N2
0.0764
1.223 29
Ammonia NH3
0.045
0.72 17
Argon A
0.105
1.68 39.9
Benzene C6H6 54.6
874.6
78.1
Butane C4H10
0.154
2.47 58.1
Carbon Dioxide CO2
0.117
1.87 44
Carbon Monoxide CO
0.074
1.19 28
Carbon Tetrachloride CCl4 99.5
1593.9
153.8
Chlorine Cl2
0.19
3.04 70.9
Ethane C2H6
0.08
1.28 30.1
Ethyl Alcohol C2H5OH 49.52
793.3
46.1
Ethylene CH2=CH2
0.074
1.19 28.1
Ethyl Ether C2H5-O-C2H5 44.9
719.3
74.1
Fluorine F2
0.097
1.55 38

... table second part

Density
lb/ft3 at 14.7 psia and 60F
Density
kg/m3 at 1013 mbar abs and 15.6c

Material Formula Liquid Gas Liquid Gas Molecular weight
Helium He
0.011
0.18 4
Heptane C7H16 42.6
682.4
100.2
Hydrogen H2
0.005
0.08 2.02
Hydrogen Chloride HCl
0.097
1.55 36.5
Isobutane (CH3)2CH-CH3
0.154
2.47 58.1
Isopropyl Alcohol CH3-CHOH-CH3 49.23
788.6
60.1
Methane CH4
0.042
0.67 16
Methyl Alcohol H-CH2OH 49.66
795.5
32
Nitrogen N2
0.074
1.19 28
Nitrous Oxide N2O
0.117
1.87 44
Octane CH3-(CH2)6-CH3 43.8
701.6
114.2
Oxygen O2
0.084
1.35 32
Pentane C5H12 38.9
623.1
72.2
Phenol C6H5OH 66.5
1065.3
94.1
Phosgene COCl2
0.108
1.73 98.9
Propane C3H8
0.117
1.87 44.1
Propylene CH2=CH-CH3
0.111
1.78 42.1
Refrigerant 12 CCl2F2
0.32
5.13 120.9
Refrigerant 22 CHClF2
0.228
3.65 86.5
Sulfur Dioxide SO2
0.173
2.77 64.1
Water H2O 62.34
998.6
18

Source : Masoneilan