Gases - Densities
Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others.
Sponsored Links
Densities, molecular weight and chemical formulas of some common gases can be found in the table below:
| Gas | Formula | Molecular weight | Density - ρ - | |
|---|---|---|---|---|
| (kg/m3) | (lb/ft3) | |||
| Acetylene (ethyne) | C2H2 | 26 | 1.0921) 1.1702) |
0.06821) 0.07292) |
| Air | 29 | 1.2051) 1.2932) |
0.07521) 0.08062) |
|
| Ammonia | NH3 | 17.031 | 0.7171) 0.7692) |
0.04481) 0.04802) |
| Argon | Ar | 39.948 | 1.6611) 1.78372) |
0.10371) 0.1113532) |
| Benzene | C6H6 | 78.11 | 3.486 | 0.20643 |
| Blast furnace gas | 1.2502) | 0.07802) | ||
| Butane | C4H10 | 58.1 | 2.4891) 2.52) |
0.15541) 0.1562) |
| Butylene (Butene) | C4H8 | 56.11 | 2.504 | 0.1482) |
| Carbon dioxide | CO2 | 44.01 | 1.8421) 1.9772) |
0.11501) 0.12342) |
| Carbon disulphide | 76.13 | |||
| Carbon monoxide | CO | 28.01 | 1.1651) 1.2502) |
0.07271) 0.07802) |
| Carbureted Water Gas | 0.048 | |||
| Chlorine | Cl2 | 70.906 | 2.9941) | 0.18691) |
| Coal gas | 0.582) | |||
| Coke Oven Gas | 0.0342) | |||
| Combustion products | 1.112) | 0.0692) | ||
| Cyclohexane | 84.16 | |||
| Digester Gas (Sewage or Biogas) | 0.062 | |||
| Ethane | C2H6 | 30.07 | 1.2641) | 0.07891) |
| Ethyl Alcohol | 46.07 | |||
| Ethyl Chloride | 64.52 | |||
| Ethylene | C2H4 | 28.03 | 1.2602) | 0.07862) |
| Helium | He | 4.02 | 0.16641) 0.17852) |
0.010391) 0.0111432) |
| N-Heptane | 100.20 | |||
| Hexane | 86.17 | |||
| Hydrogen | H2 | 2.016 | 0.08992) | 0.00562) |
| Hydrochloric Acid | 36.47 | 1.632) | ||
| Hydrogen Chloride | HCl | 36.5 | 1.5281) | 0.09541) |
| Hydrogen Sulfide | H2S | 34.076 | 1.4341) | 0.08951) |
| Krypton | 3.742) | |||
| Methane | CH4 | 16.043 | 0.6681) 0.7172) |
0.04171) 0.04472) |
| Methyl Alcohol | 32.04 | |||
| Methyl Butane | 72.15 | |||
| Methyl Chloride | 50.49 | |||
| Natural gas | 19.5 | 0.7 - 0.92) | 0.044 - 0.0562) | |
| Neon | Ne | 20.179 | 0.89992) | 0.0561792) |
| Nitric oxide | NO | 30.0 | 1.2491) | 0.07801) |
| Nitrogen | N2 | 28.02 | 1.1651) 1.25062) |
0.07271) 0.0780722) |
| Nitrogen Dioxide | NO2 | 46.006 | ||
| N-Octane | 114.22 | |||
| Nitrous Oxide | N2O | 44.013 | 0.1141) | |
| Nitrous Trioxide | NO3 | 62.005 | ||
| Oxygen | O2 | 32 | 1.3311) 1.42902) |
0.08311) 0.0892102) |
| Ozone | O3 | 48.0 | 2.142) | 0.125 |
| N-Pentane | 72.15 | |||
| Iso-Pentane | 72.15 | |||
| Propane | C3H8 | 44.09 | 1.8821) | 0.11751) |
| Propene (propylene) | C3H6 | 42.1 | 1.7481) | 0.10911) |
| R-11 | 137.37 | |||
| R-12 | 120.92 | |||
| R-22 | 86.48 | |||
| R-114 | 170.93 | |||
| R-123 | 152.93 | |||
| R-134a | 102.03 | |||
| Sasol | 0.032 | |||
| Sulfur | S | 32.06 | 0.135 | |
| Sulfur Dioxide | SO2 | 64.06 | 2.2791) 2.9262) |
0.17031) 0.18282) |
| Sulfur Trioxide | SO3 | 80.062 | ||
| Sulfuric Oxide | SO | 48.063 | ||
| Toluene | C7H8 | 92.141 | 4.111 | 0.2435 |
| Water Vapor, steam | H2O | 18.016 | 0.804 | 0.048 |
| Water gas (bituminous) | 0.054 | |||
| Xenon | 5.862) | |||
1) NTP - Normal Temperature and Pressure - is defined as 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
2) STP - Standard Temperature and Pressure - is defined as 0oC (273.15 K, 32oF) and 1 atm (101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)
- 1 lbm/ft3 = 16.018 kg/m3
- 1 kg/m3 = 0.0624 lbm/ft3
Note that even if pounds per cubic foot is often used as a measure of density in the U.S., pounds are really a measure of force, not mass. Slugs are the correct measure of mass. You can divide pounds per cubic foot by 32.2 for a rough value in slugs.
Sponsored Links
Related Topics
-
Densities
Densities of solids, liquids and gases. Definitions and convertion calculators. -
Gases and Compressed Air
Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves. -
Material Properties
Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Related Documents
-
Air - Molecular Weight and Composition
Dry air is a mixture of gases where the average molecular weight (or molar mass) can be calculated by adding the weight of each component. -
Benzene Gas - Specific Heat vs. Temperature
Specific heat of Benzene Gas - C6H6 - at temperatures ranging 250 - 900 K. -
Biogas - Carbon Nitrogen Ratios
Carbon - Nitrogen ratios for biogas produced from various raw materials. -
Biogas - Composition
Typical composition of biogas produced from household waste. -
Biogas - Potential from Animal Manure
Potential biogas production from animal manure. -
Butane - Thermophysical Properties
Chemical, physical and thermal properties of n-Butane. -
Classification of Gases
Oxidizers vs. inert vs. flammable gases. -
Densities of common Products
Densities of common products - Imperial and SI-units. -
Density Converter
Online density converter with commonly used units. -
Gases - Dangerous Concentration Levels
Dangerous vs. tolerable concentration levels for some industrial gases. -
Gases - Dynamic Viscosities
Absolute (dynamic) viscosities of some common gases. -
Gases - Explosion and Flammability Concentration Limits
Flame and explosion limits for gases like propane, methane, butane, acetylene and more. -
Gases - Molar Specific Heats
Molar specific heats for some common gases at constant volume. -
Gases - Specific Gravities
Specific gravities of air, ammonia, butadiene, carbon dioxide, carbon monoxide and some other common gases. -
Helium - Thermophysical Properties
Chemical, Physical and Thermal Properties of Helium - He. -
Hydrogen - Specific Heat
Specific heat of Hydrogen Gas - H2 - at temperatures ranging 175 - 6000 K. -
Hydrogen - Thermophysical Properties
Chemical, Physical and Thermal Properties of Hydrogen - H2. -
Liquids and Gases - Boiling Points
Boiling temperatures for common liquids and gases - acetone, butane, propane and more. -
Mass vs. Weight
Mass vs. weight - the Gravity Force. -
Methane - Thermophysical Properties
Chemical, Physical and Thermal Properties of Methane - CH4. Phase diagram included. -
Molecular Weight of Substances
Definition and molecular weight (molar mass) of some common substances. -
Natural Gas - Consumption of Equipments
Natural gas consumption for equipment like boiling pans, ovens, cookers, kettles and more. -
Nitrogen Gas - Specific Heat vs. Temperature
Specific heat of Nitrogen Gas - N2 - at temperatures ranging 175 - 6000 K -
Orifices - Natural Gas Capacity
Capacity of natural gas orifices. -
Oxygen - Thermophysical properties
Chemical, Physical and Thermal Properties of Oxygen - O2. -
STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure
The definition of STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure. -
Sulfur Dioxide Liquid - Thermal Properties
Density, specific heat, thermal conductivity and more.
