Answer (1 of 4): If it is a dry chemical or dry powder, nitrogen is used , this is because it is a dry inert gas, Halotron I is pressurised with tetrafluoromethane and argon. A water extinguisher is usually uses compressed air from a air compressor. CO2 self pressurises and becomes a …
4 y. Fire extinguishers don’t usually contain a gas as they usually contain foam, water, powder, Carbon Dioxide, etc. One might think that CO2 extinguishers contain gas however CO2 is stored as a liquid so that more CO2 gas can be released when the extinguisher is in use. So the simple answer is CO2.
NASA – The Coolest Gas in the Universe
Absolute zero is the coldest. It is -459 F. Now that is cold! Everything is made of atoms. We cannot see them. All of the atoms are moving. Moving atoms make the states of matter. Do you know about three states of matter? There are gases, liquids and solids. The atoms in a gas move very fast. The atoms in a liquid move a little slower.
CO2 Displaces the Oxygen to Extinguish Fire. Once the CO2 gas is released from the extinguisher, it looks a lot like dry ice. This “cloud” of CO2 cuts back the oxygen in the air around the fire and then smothers it. This kind of extinguisher doesn’t work well outside because of wind drift.
People Also Ask what is the coldest gas released by a fire extinguisher
What type of fire extinguisher is filled with carbon dioxide gas?
Carbon dioxide fire extinguishers are filled up with non-flammable carbon dioxide gas. Knowing the multiple classifications of fire is vital in understanding which kind of fire extinguisher to use in an emergency.
Which type of fire extinguisher is the cleanest?
A carbon dioxide fire extinguisher (CO2) is one of the cleanest types of extinguishers to use as it leaves no residue and requires no cleanup. The CO2 extinguisher does exactly that – extinguishes CO2.
Do fire extinguishers contain carbon tetrachloride?
Some types of fire extinguishers manufactured in the late 1920s through approximately the early 1960s contained Carbon Tetrachloride (CCl4). Carbon Tetrachloride is a highly volatile liquid; when it is exposed to air it almost immediately evaporates. The CCl4 vapor would very effectively smother a small fire.
Which class B fires can be extinguished with a carbon dioxide extinguisher?
Class B fires that can be extinguished successfully with a carbon dioxide extinguisher are flammable gases and liquids, oil greases (excluding cooking greases/oils), solvents, tars, oil-based paints, and lacquers. Any Class C fires, which involve energized electrical equipment, can also be extinguished with CO2.
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why Carbon dioxide is used in fire extinguisher? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher