Elephant toothpaste reaction

Référence de la vidéo 11936391
Elephant toothpaste"" demonstration. This reaction produces prodigious amounts of foam due to the rapid decomposition of hydrogen peroxide into water and oxygen. In this reaction, hydrogen peroxide solution (35%, 100mL) is added to a one-litre measuring cylinder. A small amount of liquid detergent is added, which traps the oxygen gas produced. Red food dye is also added, for show. Lastly, a catalyst (solid potassium iodide) is added to the reaction vessel. This greatly speeds the reaction, by providing a more favourable energy pathway."
Licence : Droits gérés
Crédit : Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA
Model Release : Non requis
Durée : 39 Secondes
Aspect ratio : 16/9
Restrictions : -

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