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Mock Sun

Last updated

Feb 22, 2023
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- Miscellaneous Exothermic Reactions
- Multi-Colored Luminescence of Lucigenin

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Chemical Concept Demonstrated

Chemistry of phosphorus

Demonstration

A flask is filled with O₂, and phosphorus is ignited and immersed in the flask (picture #2).

Observations

The phosphorus lights up brightly. As the flask fills with smoke, the entire flask gives off a uniform glow.

Explanation

Phosphorus reacts with oxygen in an exothermic reaction:

P₄ (s) + O₂ (g) --> P₄O₁₀ (s)

This reaction produces so much light that it is nicknamed the "Mock Sun."

Contributors

Dr. George Bodner (Perdue University)

Chemical Concept Demonstrated

Demonstration

Observations

Explanation

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