Credit: RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA/SCIENCE PHOTO LIBRARY

Caption: "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.

Release details: Model release not required. Property release not required.

Keywords: catalysed, catalysis, catalyst, catalyzed, chemical, chemistry, decomposing, decomposition, demonstrating, demonstration, educational, elephant toothpaste, fast, foam, foaming, fun, gas, glassware, hydrogen peroxide, marshmallow, measuring cylinder, mess, messy, quick, reacting, reaction, red, school, science

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Elephant toothpaste reaction

K004/0907 Rights Managed

Downloadable master

Duration: 00:00:39

Frame size: 1920x1080

Frame rate: 25

Audio: No

Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 1.2G

Original

Capture format: Sony FS700

Codec: H.264

Please contact Science Photo Library if you require the original, or other formats.

 

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