Which solution is used in fire extinguisher?

Sodium bicarbonate (soda) and sulphuric acid are the prime components of the extinguisher. They combine to form a chemical reaction to produce carbon dioxide gas, which is used to smother the fire. The arrangement of the extinguishers comprises of a container which holds the sodium bicarbonate solution.

Which chemical is used in fire extinguisher?

Carbon dioxide extinguishers

Carbon dioxide (CO2) is stored in extinguishers in the liquid phase. It vaporizes when released thereby smothering a fire by excluding the air (oxygen) needed for combustion.

Which liquid is generally used as fire extinguisher?

Sodium bicarbonate, regular or ordinary used on class B and C fires, was the first of the dry chemical agents developed. In the heat of a fire, it releases a cloud of carbon dioxide that smothers the fire. That is, the gas drives oxygen away from the fire, thus stopping the chemical reaction.

Which foam is used in fire extinguisher?

AFFF (Aqueous Film Forming Foams) Foam Fire Extinguishers are suitable to fight burning solids such as wood as well as liquid fires such as burning petrol. The foam has the ability to creep over the burning liquid or to soak into burning materials such as settees.

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Which is the most common and effective solution for extinguishing fire?

The preferred method for extinguishing class “A” fires is to remove the heat. Water is the most common agent, but others such as dry chemical, halon, halogenated agents and foam can be used effectively.

Which gas is used in fire?

Carbon Dioxide (CO2) Fire Suppression Systems

Unlike clean agents, carbon dioxide puts out fires by removing oxygen, not heat. This is a critical difference, because it means that carbon dioxide can not be used in occupied spaces. Because carbon dioxide removes oxygen, it can suffocate people.

What are the 5 classes of fire extinguishers?

What are the 5 Types of Fire Extinguishers?

  • Class A Fire Extinguishers. Class A fire extinguishers are safe for use on ordinary combustible fires, like those fueled by paper or wood. …
  • Class B Fire Extinguishers. …
  • Class C Fire Extinguishers. …
  • Class D Fire Extinguishers. …
  • Class K Fire Extinguishers.

What are the 4 types of fire extinguishers?

There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.

What is a Class A and B fire?

There are four classes of fires: Class A: Ordinary solid combustibles such as paper, wood, cloth and some plastics. Class B: Flammable liquids such as alcohol, ether, oil, gasoline and grease, which are best extinguished by smothering.

Fire safety