Question

How baking soda help in extinguishing fire?

Answer 1

Soda is used in fire extinguisher because this soda on reaction with sulphuric acid releases CO2, which helps in combustion...


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Answer 2

When sodium bicarbonate (baking soda) is heated, it becomes sodium carbonate. In this process water and carbon dioxide is released. The CO2 starves the fire of O2.

Alsi Soda acid fire extinguishers contain a mixture of H2SO4 and baking soda. These react to release CO2 which forms a layer over the burning substance and cuts the supply of oxygen to the fire.

2NaHCO3 + H2SO4

Na2SO4 + 2H2O + 2CO2

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