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

Caption: Ammonium dichromate volcano demonstration. Ammonium dichromate is a salt that decomposes in an exothermic reaction when ignited. The decomposition produces a large volume of dark green chromium (III) oxide, along with steam and nitrogen gas. The equation for the reaction is: (NH4)2Cr2O7 --> Cr2O3 + N2 + 4H2O.

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Keywords: ammonium dichromate, bench, burning, burns, chemical, chemistry, chromium oxide, chromium vii, decomposing, decomposition, demonstrating, demonstration, education, educational, exothermic, experiment, gloved hand, heat, hot, igniting, ignition, impressive, inorganic, ionic, lighting, producing, pyrotechnics, reaction, salt, science, spark, sparks, spectacular, splint, volcano

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Ammonium dichromate volcano

K004/1953 Rights Managed

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Duration: 00:01:22.05

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 2.7G

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Capture format: Sony FS700

Codec: H.264

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