The chemistry behind the explosive expansion of Elephant's Toothpaste
Witness the rapid decomposition of hydrogen peroxide in high detail. This slow-motion demonstration reveals how a simple catalyst can transform a liquid into a massive, colorful foam eruption.
The reaction relies on the catalytic decomposition of a hydrogen peroxide solution. By introducing potassium iodide to the peroxide, the chemical breakdown is accelerated, creating a sudden release of oxygen. To enhance the visual impact of the foam, washing liquid is added to trap the gas, while food dye provides vibrant color.
Presented by Professor Martyn Poliakoff, Dr Samantha Tang, and Neil Barnes, the video provides a detailed, close-up look at the mechanics of this famous chemical phenomenon.
Source: Elephant's Toothpaste (slow motion) - Periodic Table of Videos
