Chemiluminescence--Luminol
- Page ID
- 2976
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Chemical Concept Demonstrated
- Chemiluminescence
Demonstration
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Solution A
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Solution B
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Pour solutions A and B simultaneously into the funnel. 
Observations
The entire spiral gives off a singular glow.
Explanation
Luminol is converted to a dianion in basic solution. This dianion is then oxidized with H2O2/Cu2+ to form N2 and an aminophthalate ion in an electronically excited state. In order to achieve an electronically unexcited state, the ion emits a photon of wavelength 424 nm.
Contributors
- Dr. George Bodner (Perdue University)