Tag: chemiluminescence

CSI Chemistry Luminol

Crime Scene Chemistry – Luminol, Blood & Horseradish

CSI Chemistry Luminol
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Anyone who’s watched CSI or similar shows knows that, whenever the investigating team are on the scene of a gruesome and bloody murder, luminol solution gets sprayed liberally over absolutely everything. The result is a pale blue luminescence whenever the solution meets blood, which itself is a consequence of a chemical reaction that the blood gives a helping hand to. Here, we look at this reaction – and what horseradish has to do with it.

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The chemistry of glow stick colours

The Chemistry of Glow Sticks

The chemistry of glow stick colours
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Everyone’s familiar with glow sticks, but it’s likely that fewer are familiar with the¬†chemistry behind their glow. You may have wondered what happens when you snap a glow stick to activate it; by doing this, you’re actually kicking off a chemical process that eventually leads to the production of the coloured light. But how does this process work, and why do you need to bend the glow stick to initiate it?

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