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The Chemistry Of Fireworks

Infographic by Compound Chemistry

Colour in fireworks is produced by pyrotechnic 'stars' which produce coloured light when ignited.

The stars contain five basic ingredients, metal salts are used to produce colour , a fuel is needed to allow the star to burn: an oxidising chemical provides oxygen for the combustion of the fuel : a chlorine donating compound helps strengthen some colours: and a binding chemical holds the mixture together.

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