What are the properties of carbon dioxide in a fire extinguishers?

Answer 1

The property used is its heaviness than air. CO2 being heavier than air, settles over the flames and cuts off contact with O2. Fire cannot continue without the oxygen supply and is extinguished.

Answer 2

Fire extinguishers contain different chemicals, depending on the application. Handheld extinguishers, which are commonly sold at hardware stores for use in the kitchen or garage, are pressurized with nitrogen or carbon dioxide (CO2) to propel a stream of fire-squelching agent to the fire. The active material may be a powder such as potassium bicarbonate (KHCO3), liquid water, an evaporating fluorocarbon or the propelling agent itself. The most effective and common fluorocarbon used until recently for this application had been bromochlorodifluoromethane (CF2ClBr), referred to as halon 1211. By international agreement, however, production of all types of halons ceased in 1994 because the bromine and chlorine atoms in the chemical were found to migrate over time to the stratosphere, where they react to deplete ozone in a very efficient catalytic cycle.

Answer 3

what is the melting point of cartbobn dioxide

Answer 4

CO2 needs space, much space, as it expands from the extinguisher, so it removes the air around the fire. Without oxygen- there's no fire.