Chemical recipes to make fireworks are still based off an ancient mixture of chemicals that produces the quintessential bang. It's that time of the year you should hear this story.
If you put very fine black powder in a confined space it explodes in a cloud of heat, gas and noise. So where do the colors and bright light come from?
When you heat up any material, what you’re really doing is putting energy into the electrons of that material’s atoms. If you excite the electrons enough, when they fall back to their normal energy levels they release that excess energy as light.that appear as different colors. Strontium makes red. Barium produces green. Copper burns blue, and so on.. Deep blues are too dark and can’t be seen against the night sky. But if the blue is too light, it appears white.
Certain elements produce different colors, but what about sparkles and flashes? To make these effects, various metals can be added to the pyrotechnic formulas. Aluminum, magnesium and titanium all produce white sparks. By adding iron you get gold sparks. Mixing in various types of charcoal can produce red and orange sparks. Each of these elements burns at a different speed and in a different way and so produces varying colors and intensities of light.
Making a boom is much easier. Simply put an energetic formula in a confined space with nowhere for the gas to go. When ignited, the pressure will build and the firework will explode, producing a sudden boom or bang. As you watch the fireworks this New Year’s Eve or launch some of your own in the backyard, you’ll now know how they work. Fireworks are a lot of fun, but the explosions and burning chemicals are dangerous – even if they do come in colorful packaging. If you can legally launch consumer fireworks in your town, please
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