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With American Independence Day around the corner, and the customary fireworks, here’s a look at the chemistry of gunpowder and its role in pyrotechnic displays:

Adapted from the quick and dirty graphic I created for the ask from wonderousscience - note that in that graphic, I accidentally swapped the percentages for potassium nitrate and charcoal! This graphic shows the correct percentages.

Everyone ready for the 4th!?

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