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

Caption: Firefly reaction. Hot chromium (III) oxide in a ladle is introduced into a flask of concentrated ammonia solution. It catalyses the oxidation of ammonia vapours to nitrogen, nitrous oxide, and water in an exothermic (heat-producing) reaction via two different pathways. The reaction produces sparks.

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

Keywords: 40 seconds or greater, agent, ammonia, catalysing, catalysis, catalyst, change, changing, chemical, chemistry, concentrated, demonstrating, demonstration, education, educational, effect, effects, element, exothermic, experiment, experimental, explosion, explosive, fire fly, firefly, flash, gas, gaseous, laboratory, light, nitrogen, nitrous oxide, oxidation, oxidising, oxidizing, oxygen, reacting, reaction, science, solution, spark, vapor, vapour

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Oxidation of ammonia

K004/4967 Rights Managed

Downloadable master

Duration: 00:00:40

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 795.7M

Original

Capture format: Sony FS700

Codec: Apple ProRes 422 HQ

Interlaced: Yes

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

 

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