Water is the primary liquid used in these extinguishers, although sometimes other additives are also included. A drawback for pure water fire extinguishers is that it is not suitable for use in freezing conditions since the water inside …
In the case of class B fires, flammable liquids & gasses effort that completes the fire Triangle. The flame-able liquids that can cause class B fire include oils, Diesel, Petrol, grease, alcohols, solvents, and oil-based Paints. The flammable gasses are butane and hydrogen. What type of extinguishers can put out class B fire
Fire extinguisher – Wikipedia
This is a powder-based agent that extinguishes by separating the three parts of the fire triangle. It prevents the chemical reactions involving heat, fuel, and oxygen, thus extinguishing the fire. During combustion, the fuel breaks down into free radicals, which are highly reactive fragments of molecules that react with oxygen. The substances in dry chemical extinguishers can stop this process.
What is the liquid in a fire extinguisher? The active material may be a powder such as potassium bicarbonate (KHCO 3 ), liquid water , an evaporating fluorocarbon or the propelling agent itself. The most effective and common fluorocarbon used until recently for this application had been bromochlorodifluoromethane (CF 2 ClBr), referred to as halon 1211.
People Also Ask what liquid is in a fire extinguisher
What type of liquid is used in fire extinguishers?
Water is the primary liquid used in these extinguishers, although sometimes other additives are also included. A drawback for pure water fire extinguishers is that it is not suitable for use in freezing conditions since the water inside will freeze and render the extinguisher unusable.
What is a fire extinguisher made out of?
Fires in cooking appliances that involve combustible cooking media (vegetable or animal oils and fats). Water is the primary liquid used in these extinguishers, although sometimes other additives are also included.
How much dry chemical is in a fire extinguisher?
A typical dry chemical extinguisher containing 5 lb (2.3 kg). of monoammonium phosphate dry chemical. A 10 lb (4.5 kg) stored pressure purple-K fire extinguisher An 18 lb (8.2 kg) US Navy cartridge-operated purple-K dry chemical ( potassium bicarbonate ) extinguisher.
What are the fire extinguishing agents used in fire extinguishers?
The fire extinguishing agent used in these devices is a powder composed of very small particulates. Types of agents available include sodium bicarbonate base and potassium bicarbonate base.
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What's inside a Fire Extinguisher? Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher