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Across the country, people are celebrating Independence Day with parades, concerts, festivals and of course, fireworks. Fireworks have been astounding audiences around the world for centuries, but they are also very dangerous when misused. Fireworks can cause serious injuries to the hands and eyes, so if you’re planning on setting off some sparklers or roman candles this holiday, be sure to follow the local and state laws regarding the types of fireworks you can use.
Fireworks are pyrotechnic devices that produce sparks from a controlled reaction, usually burning chemicals. The most common chemical used in fireworks is black powder, which combines with an oxygen-containing fuel to create hot gases that ignite into flames and produce visible light. In addition, metal salts can be added to the mixture to produce different colors when they burn. The colors are produced when the chemicals react with an oxidizer at high temperatures to create an electric charge, which then e
Most consumer fireworks are based on black powder, with some using aluminium and magnesium. All of these substances have different reactions with oxidizers, which affect the color and size of the sparks they produce as well as their ability to explode. Some even have additives to improve their stability and performance, like a plasticizer that helps maintain shape and reduce friction in the combustion process.
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