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Fireworks

Published on Nov 24, 2015

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PRESENTATION OUTLINE

FIREWORKS

HOW DIFFERENT COMPOUNDS MAKE DIFFERENT COLORS
Photo by James Niland

HOW?

  • Elements contain different amounts of energy
  • Energy determines how much wave length is created which creates color
  • When atoms are heated they absorb metal salts that helps create color
  • Each element gives off a different amount of wavelength
  • As atoms reach highest state the excess energy is released as light
Photo by magrolino

CHEMICAL REACTIONS

  • Oxidizers produce the oxygen gas.
  • They burn reducing agents to excite atoms for the explosion.
  • commonly used oxidizers are nitrates, chlorates, and perchlorates.

pyrotechnic stars

  • Generate the colors in fireworks
  • Produce light when ignited
  • 5 ingredients to create them

5 INGREDIENTS

  • A fuel which allows the star to burn
  • Oxidizer
  • Color producing chemicals
  • A binder which holds the pellet together.
  • A chlorine donor which provides chlorine to strengthen the color of the flame

WAVELENGHT

ELEMENTS IN FIREWORKS

  • CaCl2 (calcium chloride) Orange
  • NaNO3 (sodium nitrate) Yellow
  • BaCl2 (barium chloride) Green
  • CuCl2 (copper chloride) Blue
Photo by Lυвαιв