Boom, Crackle, Hiss... Some fireworks come with sounds. It is layers upon layers of organic salt, combined with the oxidizer potassium perchlorate that is burnt a layer at a time slowly that releases a gas that gives the whistling sound that is in most fireworks. To create hissing or sizzling sparkles aluminium or iron flakes are added, while titanium powder is used to create the loud bangs in addition to white sparks. Just check out the amazing noises made by these Roman Candles we call 'Wolves
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Boom, Crackle, Hiss... Some fireworks come with sounds. It is l…
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