What type of fire extinguisher do you use when a chemical fire occurs?

Answer 1

It depends upon the type of chemical that is burning, but frequently it is safe to use a dry-chemical powder (DCP), or an ABC type of extinguisher.

However, boiling grease fires may need a Class K extinguisher and flammable metals (aluminum, magnesium, lithium, etc) may need a Class D extinguisher.

Answer 2

There are numerous ways, and the best choice may depend upon the chemical that is burning.

If it is an "ordinary combustible", such as rubber or plastic, use a Class A extinguisher, which is often just water or foam.

If it is a flammable liquid chemical, you can use a Class B extinguisher.

For Class D flammable metals (e.g., magnesium, lithium, aluminum) you would use a Class D extinguisher or other type of materials recommended by the Material Safety Data Sheet (MSDS), but certainly not water.

For flaming grease fires in kitchens, the Class K extinguisher has been developed, which turns the surface of the grease to a non-flammable soap-like substance.

Answer 3

Class B is for flammable liquids such as cooking grease/oil, kerosene, gasoline, paint thinner, oil, etc.

Answer 4

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