When the knob of the fire extinguisher is opened, the sulphuric acid reacts with sodium bicarbonate producing a large amount of carbon dioxide. As carbon dioxide is non-combustible and heavier than air, it cuts off the air supply of the oxygen and extinguishes the flame.
Why is sulphuric acid kept in fire extinguisher?
Sulphuric acid is non flammable so soda acid is most common fire extinguisher. Carbon dioxide is liberated by the action of sulphuric acid on baking soda or sodium bicarbonate. This increases the percentage of carbon dioxide in air. Due to this the supply of air is cut off and fire is extinguished.
Why are washing soda and sulphuric acid used in fire extinguishing machine?
Soda acid type extinguisher acts by cutting off supply of air. … It increases the percentage of carbon dioxide in air (CO2 is non supporter of combustion). This type of fire extinguisher contains a bottle of sulphuric acid supported by a metallic container filled with a baking soda solution.
Does fire extinguisher contain H2SO4?
Answer: Fire Extinguishers contain H2SO4 and NaHCO3.
Is sulfuric acid harmful to the environment?
Sulfuric acid will exist as particles or droplets in the air if released to the atmosphere. It dissolves when mixed with water. It has moderate acute (short-term) toxicity on aquatic life. Sulfuric acid is very corrosive and would badly burn any plants, birds or land animals exposed to it.
Why is baking soda used as fire extinguisher?
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. … These react to release CO2 which forms a layer over the burning substance and cuts the supply of oxygen to the fire.
Why is baking soda used as acid fire extinguisher?
Carbon dioxide gas is neither combustible nor helps combustion. It is heavier than air and cuts off the supply of oxygen from air and hence extinguishes the fire. … Hence, sodium bicarbonate is used in fire extinguishers.
What is present in fire extinguisher along with H2SO4?
sodium bicarbonate and sodium carbonate.
Is H2SO4 sulfuric acid?
Sulfuric acid is a strong mineral acid with the molecular formula H2SO4. It is soluble in water, and is mainly used in ore processing, oil refining, fertilizer manufacturing, and wastewater processing. The chemical formula for sulfuric acid is H2SO4.
Which of the following is used in fire extinguisher along with h2 S o4?
The reaction of sulfuric acid with baking soda liberated carbon dioxide, which increases the percentage of carbon dioxide. Hence, the sulphuric acid is used as in fire extinguishers.