Start Time
End Time

*Cool New Features

Elephant's Toothpaste (slow motion) - Periodic Table of Videos

Behold, the popular Elephant's Toothpaste reaction... We look at it in some detail.
Support us on Patreon and adopt an element:
Raw footage of slow motion:

Hydrogen Peroxide solution is catalysed by Potassium Iodide - washing liquid (for foam) and food dye (for colour) make the whole thing more visible!

This video features Professor Martyn Poliakoff, Dr Samantha Tang and, of course, Neil Barnes.

More chemistry at
Follow us on Facebook at
And on Twitter at
From the School of Chemistry at The University of Nottingham:

Periodic Videos films are by video journalist Brady Haran:
Brady's Blog:

Join Brady's mailing list for updates and extra stuff ---
99.35% favorited