What is the composition of firecrackers?

Firecrackers contain flash powder (a mixture of an oxidizer such as potassium chlorate or perchlorate and powdered aluminium or magnesium) or black gunpowder in a paper tube. An attached fuse ignites the flammable mixture. It burns explosively producing gases that rapidly build up pressure and burst the container.

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Updated on: 10-Oct-2022

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