Chem Ace Firework

The Chemistry Behind Fireworks By Darryl Ho 4L04

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Content

What is a Firework ? It is a low explosive pyrotechnic device used primarily for special effects and entertainment purposes.

[object Object],[object Object],[object Object],[object Object],[object Object],What is a Firework Made Of ?

STAGE I - The Lift Off Redox reaction between the oxidising agents and the rocket fuel

[object Object],[object Object],[object Object],[object Object],STAGE I - Redox Reaction 4 KN O 3 4 K 2 O + 2N 2 + 5 O 2

[object Object],[object Object],[object Object],[object Object],2 STAGE I - Redox Reaction O (g) + S (s) S O (g) 2 O (g) + C (s) C O (g) 2 2 2

[object Object],[object Object],[object Object],[object Object],The Result

Excitement of electrons of metal atoms STAGE II – Excitement of Electrons

STAGE II - Heating of Colouring Agents ,[object Object],[object Object],[object Object]

[object Object],[object Object],STAGE II - Heating of Colouring Agents

Effect - Different Metals ………. Different Colours ,[object Object],[object Object],Higher Energy Lower Energy Shorter Wavelengths Higher Wavelengths

Effect - Different Metals ……….Different Colours COLOUR CHEMICAL WAVELENGTH Red ,[object Object],650 nm Orange ,[object Object],[object Object],670 nm Yellow ,[object Object],[object Object],610 nm Blue ,[object Object],535 nm Silver ,[object Object],[object Object]

Chem Ace Firework

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