Chemiluminescence: Luminol

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Published 29 Mar 2009
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Chemiluminescence of luminol. Two solutions are combined, the first solution contains luminol and sodium hy...
Chemiluminescence of luminol. Two solutions are combined, the first solution contains luminol and sodium hydroxide. The second solution is 0.03% Hydrogen peroxide and potassium ferricyanide.

The luminol and the hydrogen peroxide react to cause the chemiluminescence. The iron in potassium ferricyanide is a catalyst for the reaction.

This is also used by crime scene investigators. A solution of hydrogen peroxide and luminol is placed into a spray bottle. When the solution comes into contact with blood, the iron present in hemoglobin will catalyze the reaction and it will begin to glow.

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Music: Kevin MacLeod
Categories: Science & Tech
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