Before buying a fire extinguisher, the first thing you need to do when choosing a fire extinguisher is to understand what is the content in each fire extinguisher? It’s important to make sure you have the right fire extinguishers on hand to put on fires.

 

Fire extinguishers are available in different types of ingredients depends on the type of fire it puts out. It’s can be differentiate by colour-coded label that indicates the class of fire.

Content in Fire Extinguisher

Dry Chemicals

Ingredient Class of fire extinguisher Description
Mono ammonium phosphate Class A, B and C Must be cleaned up soon after extinguishing the fire because nonconductive but corrosive
Sodium bicarbonate Class B and C Requires minimal clean up because it is noncorrosive and nontoxic.
Potassium bicarbonate Class B and C Requires minimal clean up because nonconductive and noncorrosive.

 

Wet Chemical

Ingredient Class of fire extinguisher Description
Potassium acetate-based agent Class K Often found in commercial cooking areas.

 

Water and Carbon Dioxide

Ingredient Class of fire extinguisher Description
Water Class A Often used in combination with chemicals in fire extinguishers.

Ingredient Class of fire extinguisher Description
Carbon Dioxide Class B and C Can be used on electrical equipment with minimal damage.

 

Halotron or Halon

Ingredient Class of fire extinguisher Description
Halotron Class A, B and C Halotron is an alternative to halon beacause dangerous gases are formed when halon is used on fires.

 

Metal Powders

Ingredient Class of fire extinguisher Description
Powdered metal such as copper or sodium chloride and sand Class D Work best for fires including uranium, powered aluminium, magnesium, potassium and sodium.

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