Chemistry of fireworks

834 views
598 views

Published on

Published in: Education, Technology, Business
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
834
On SlideShare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
19
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Chemistry of fireworks

  1. 1. THE CHEMISTRY OF FIREWORKS By: Alex Hollis
  2. 2. BRIEF HISTORY • The first fireworks were invented by the Chinese. • Around 2000 years ago a Chinese monk created gunpowder, the main ingredient in fireworks. • The first fireworks were pieces of bamboo filled with gunpowder.(Helmstine 1)
  3. 3. STEPS OF A FIREWORK • There are three different steps to the explosion of a firework. • The first of these steps is combustion. • This part of the reaction can reach temperatures of over 1800 degrees Fahrenheit.(Antonis 9)
  4. 4. COMBUSTION • Inside of the firework is sulfur, charcoal, and potassium nitrate. • Once you light the fuse it ignites black powder, which ignites everything causing them to react. • This part is what propels that firework up in the air.(Wallulis 1)
  5. 5. STEP 2 • The second stage of the firework occurs once it has reached it's highest point in the air. • After igniting the black powder on step one, the fuse then reaches an oxidation agent within the firework. • The oxidation agent is normally nitrate, chlorate, or perchlorate.
  6. 6. STEP 2 (CONTINUED) • The heat and gas that was produced from the reaction in step one then reacts with the oxidation agent. • This reaction produces a lot of oxygen. • This is the beginning stage of the explosion of the firework.
  7. 7. STEP 3 • Inside the firework are little balls, called stars, filled with normally carbon or nitrogen. • Then the oxygen in step two reacts with the carbon or nitrogen in the stars to make a rapidly expanding gas. • The energy produced in this reaction is absorbed by atoms in the gas.
  8. 8. STEP 3 (CONTINUED) • This causes their electron to leave their normal ground state and move to an excited energy state. • After, they will return back to their ground state producing a lot of energy. • This energy is release in the form of light. • Other colors can be created by adding different metals to the stars.

×