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What exactly is a firework?

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by

Janya Bailey

on 17 October 2013

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Transcript of What exactly is a firework?

Fireworks
What exactly is a firework?
Fireworks are basically rockets, made from gunpowder, salt, and other chemicals. They are used for many reasons, including celebrations, holidays, etc.
Where and when were fireworks invented?
It is said that fireworks were invented during the Han Dynasty on accident by a chinese man who mixed saltpeter, sulfur, and charcoal. The man put the ingredients in the bamboo and laid it on te fire. The chinese believed that it would scare away bad spirits. Gun powder is made from these same ingredients.
Who were the first Europeans to master the fireworks?
Marco Polo was believed to be the first European to master fireworks, but the italians actually mastered them first.
What type of simple chemical reaction occurs in fireworks?
What are the components of black powder? What are the ratios of these components?
What three processes cause fireworks to emit light?
What type of elements are responsible for the colors of fireworks?
What is responsible for the whistling sound that often accompanies fireworks?
What are the component parts of modern fireworks? What does each part do?
The chemical reaction that occurs in fireworks is combustion and oxidation. Luminescence occurs also, which is the cause of the pretty bright lights.
Black powder is made from potassium nitrate, sulfur, and charcoal. The charcoal is the fuel, the potassium nitrate provides the oxygen, and the sulfur lowers the temperature and speeds up the combustion.
Radiance, atomic discharge, and molecular discharge. Radiation causes fireworks to heat up and light becomes visible. Atomic and molecular discharge causes the fireworks to make colors other than yellow and orange.
The salt in fireworks causes the color. The color also depends on the chemicals put in it.
There are actually many reasons why fireworks make a whistling sound; there are tiny air pockets in the rocket, the oxygen and salt mixture, and the composition when it burns.
The component part of fireworks are the launch tube, black powder, and fuse. The role of the launch tube is that it launches the firework. The black powder and fuse sets off the fireworks into the air.
Table of the chemical compounds
Turquoise - Copper chloride
Yellow - Sodium nitrate, sodium compounds, cryolite
Pink - Metals combined with carbon, chloride and nitrogen
Red - Lithium carbonate, strontium salts, lithium salts
Brilliant Red - Strontium carbonate
Green - Barium compounds, chloride producer
Bright Green - Barium Chloride
Purple - Strontium and copper compounds
White - Magnesium and aluminum barium oxide
Full transcript