For example, one idea is to use a solid propellant to generate an inert gas mixture–an approach identical to the systems in car air bags. Such a system, when activated, would extinguish a fire …
It is aqueous film forming foam and it needs a chemical reaction between water, fluoro tensides, and other various chemicals to create a fire fighting foams. A carbon based fire has an equation of CH4+2O2->CO2+2H2O which then the foam puts out the fire by smothering it or basically taking away the oxygen from the equation.
What chemicals are used in a fire extinguisher? How do …
A portable fire extinguisher is a device used to put out fires of limited size. Portable extinguishers are classified by expected application on a specific type of fire (i.e., A, B, C, or D) and the expected area of suppression. The four types of fires are grouped according to the type of material that is burning.
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What type of chemical reaction is a fire extinguisher?
Hexylene Glycol It is an organic compound that is odorless and is a chiral diol. The first role chemistry plays in a fire extinguisher is when you pull the lever to fire the foam onto a fire you release Carbon Dioxide which then replaces all of the foam within the bottle. This is an example of single replacement reaction.
What are the different types of fires that extinguishers are designed to fight?
There are different types of fires that extinguishers are designed to fight. These include: Class A – a fire started with normal combustibles such as wood, paper, and cloth. Class B – a fire started with flammable and combustible liquids and gases such as gasoline and paints.
What is the extinguishing agent in a Class C fire extinguisher?
The extinguishing agent in a Class C fire extinguisher must be electrically nonconductive. Both carbon dioxide and dry chemicals can be used for electrical fires. An advantage of carbon dioxide is that it leaves no residue after the fire is extinguished. When electrical equipment is not energized, extinguishers for Class A or B fires may be used.
How does a Class K fire extinguisher work?
Class K fire extinguishers are well designed to put out fires starting from greases, cooking fats, and kitchen oils. This makes them well suited for use in restaurants and home kitchens. They put out fires by a process called saponification.
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Chemical Reactions: How to make a fire extinguisher Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher