How does the foam type fire extinguisher work?

The foam-type fire extinguisher is based on the principle of smothering the fire. In this extinguisher, sodium bicarbonate contains Turkey red oil. When it is operated, carbon dioxide liberated in the reaction of dilute sulphuric acid with sodium bicarbonate comes out under pressure in the form of a foam and settles on the fire.

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Updated on: 16-Mar-2023

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