What are the conditions for a fire?

A: There are three conditions for fire:

(1) Flammable substances. The flammable solid (wood, paper, etc.), flammable liquids (diethyl ether, alcohol, etc.), white phosphorus [pyrophoric material, an alkyl metal, etc.) and combustible gas (coal gas, etc.).

(2) Supply. This condition is the easiest to satisfy. For drugs such as oxidants, they can also burn oxygen by themselves when they are isolated from air.

(3) The initial temperature at which combustion is reached. Reaching the initial temperature of combustion is the most critical condition for combustion of flammable substances, which is the most overlooked by laboratory operators and is also a key point in preventing and eliminating fires.

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