Sulfur Daily Question, June 22------3 points for participation, 10 points for a correct answer

Flammable materials, oxidizing agents, ignition sources

Flammable materials, oxidizers, temperature (reaching the ignition point). All three are essential.

1) Combustible material (2) Oxygen (3) Temperature reaches the ignition point

Flammable material, oxygen, and temperature reaching the ignition point

There are combustible materials, oxygen, and the temperature reaches the flash point

For a substance to burn, the following three basic conditions must be met: (1) Fuel: Whether solid, liquid, or gas, any substance that can react violently with oxygen or other oxidizers in the air is considered a fuel, such as wood, paper, gasoline, alcohol, and gas. (2) Oxidizer: Substances that help sustain combustion are known as oxidizers. These are generally oxygen and other oxidizing agents, with oxygen in the air being the most common one. This oxygen is referred to as atmospheric oxygen, accounting for about 21% of the air. Without oxygen, a combustible substance cannot burn; for example, burning 1 kilogram of oil requires 10–12 cubic meters of air, while burning 1 kilogram of wood requires 4–5 cubic meters of air. When there isn’t enough air supply, the combustion gradually weakens until it stops. Combustion does not occur when the oxygen content in the air is below 14–18%. (3) Ignition source: Any source of energy that can initiate the combustion of a combustible substance is called an ignition source, such as an open flame, friction, impact, electric sparks, etc. Only when all three of these conditions are met can a substance burn. For example, to light a stove, wood (fuel), air (oxidizer), and a match (ignition source) are all necessary for the stove to catch fire.

This post was last edited by jujiangliu on 2016-6-22 10:11: combustibles, oxidizers, ignition sources, chain reaction radicals

Ignition source, oxidizer, combustible material