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Metallic fuels are usually chosen over organic fuels as organic fuels cannot generate as high temperatures. For example, calcium (not exciting by itself) gets really excited when it is around other substances, thus enhancing the color (sort of like being in a room by yourself, and then Johnny Depp walks in). However, the colors in fireworks are determined by more than just the metallic substance used. For example, sodium salts produce yellow, lithium compounds produce red, copper salts produce blue and green, etc. Pyrotechnicians know which substances produce which colors (they are the people who were paying attention in chemistry and physics class). The light gives off the particular characteristics of the metal that is used. The atoms in the metals that are contained in the stars cause light to be emitted at high temperatures. These stars, which contain fuel, oxidizer, color-producing chemicals, binder and a chlorine donor (not to be confused with a blood donor, although one could be needed if you get too close to the fireworks) are responsible for the fireworks’ appearance. When this shell explodes, the stars are distributed into the sky. The stars are arranged in specific shapes within the fireworks’ shell.
The color machine firework movie#
Pyrotechnicians put these metal salts into stars (not to be confused with movie stars, although movie stars have been known to be colorful also when heat was applied). The bright colors that you see in fireworks are produced by burning metal salts. Therefore, pyrotechnicians (not to be confused with pyromaniacs who burn many things besides fireworks and without the owners’ permission) must have a knowledge of chemistry to make fireworks that produce a variety of colors. Instead of ooh’s and aah’s, you would probably hear umm and hmm.īlack powder is a main component in fireworks, but it gives off only one color, bright yellow.

However, if there were no bright colors (blues, greens, reds, etc.) it would not be nearly as fun. Everyone loves to watch a firework display on the Fourth of July.
