Classification of Gases
Oxidizers vs. inert vs. flammable gases.
Compressed gases can be classified as
- oxidizers
- inert gases
- flammable gases
Oxidizers
Oxidizers are not flammable by them self, but will contribute to combustion as an oxidant. Fat or oil is not acceptable in combination with oxidizers.
Some common oxidizers:
- Air
- Chlorine
- Fluorine
- Nitric Oxide
- Nitrogen Dioxide
- Oxygen
Inert gases
Inert gases do not take part in combustion processes and they do not react with other materials. An inert gas supplied to a room or limited space will reduce the amount of oxygen and limit a combustion process of a fire. Inert gases are used in extinguishing systems where it is important to avoid water damage - rooms with electronic devices etc.
Some inert gases:
- Argon
- Carbon Dioxide
- Helium
- Neon
- Nitrogen
- Xenon
Flammable gases
Flammable gases together with air or oxygen in the right concentration burns or explodes if ignited.
If the mixture is to lean or to rich the mixture will not ignite.
Some flammable gases:
- Acetylene
- Ammonia
- Arsine
- Butane
- Carbon Monoxide
- Cyclopropane
- Ethane
- Ethylene
- Ethyl Chloride
- Hydrogen
- Isobutan
- Methane
- Methyl Chloride
- Propane
- Propylene
- Silane
Related Topics
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Combustion
Boiler house topics, fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency. -
Gases and Compressed Air
Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.
Related Documents
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Fuels and Chemicals - Autoignition Temperatures
Autoignition points for fuels and chemicals like butane, coke, hydrogen, petroleum and more. -
Gases - Densities
Densities and molecular weights of common gases like acetylene, air, methane, nitrogen, oxygen and others. -
Hazardous Areas - European Classification Standard
European hazardous area classification with zones, protection types, temperature codes and codes. -
Hazardous Areas - North America Classification
North American hazardous locations classification with classes, divisions and groups
