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14 octobre 2013 1 14 /10 /octobre /2013 09:39


Luminescent chemical reaction



Materials :

For this experient, we use four test tubes, two yogurt pots, one plastic pipette, graduated cylinder and glasses.


We use subtances such as luminol, hydrogen paroxide, glowing, coloring substances and potacium ferricyanide.



Experiment :

  •  We add 20 mLs of potassium ferricyanide with a graduated cylinder. We pour that in a yogurt pot.
  • With the plastic pipette, pour 5 mLs of potassium ferricyanide in each of the four test tubes.
  • We add two drops of colorant and mix it (to make the subtance homogenous).
  • We pour four drops of hydrogen paroxide in each tube and we put the pipette in the yogurt pot. We do rinse immediately.
  • We measure 20mLs of luminol with a gratuated cylinder.
  • We pour the luminol in a new yogurt pot.
  • And finally, we pour drops of luminol in the test tube and we observe the outcome.

How does it work?

The contact of the luminol and the potassium ferricyanide produces a colored light.


Conclusion :

This chemical reaction produces its own light as a consequence it's a primary light source.










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11 octobre 2013 5 11 /10 /octobre /2013 13:55


















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