Asked in
Baking Soda (sodium bicarbonate)

Why does baking soda extinguish grease fires?


User Avatar
Wiki User
September 14, 2010 12:38PM

Baking soda contains three products: sodium carbonate, water vapor(gas), and carbon dioxide . In order for there to be a fire, 3 elements must be present (oxygen being one of them). Since baking soda contains carbon dioxide which smothers the fire, not allowing the oxygen to get to the flame, therefore extinguishing the fire.