Explain main function of soda acid fire extinguisher
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In soda-acid fire extinguisher, which contains a solution of sodium hydrogen carbonate surrounding a glass bottle containing sulphuric acid.
In case of fire, the knob (provided at the top of extinguisher) is pressed, thereby bottle breaks and the two solutions come in contact, thereby liberating carbon dioxide gas.
2 NaHCO3 + H2SO4➡ Na2SO4 + 2 H2O + 2 CO2
The liberated carbon dioxide forces a stream of effervescing liquid on the fire. In this way, carbon dioxide surrounds the combustible substances and cutoff the supply of air, thereby it assists to put out the fire.
In case of fire, the knob (provided at the top of extinguisher) is pressed, thereby bottle breaks and the two solutions come in contact, thereby liberating carbon dioxide gas.
2 NaHCO3 + H2SO4➡ Na2SO4 + 2 H2O + 2 CO2
The liberated carbon dioxide forces a stream of effervescing liquid on the fire. In this way, carbon dioxide surrounds the combustible substances and cutoff the supply of air, thereby it assists to put out the fire.
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