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

Caption: High-speed footage of water being poured on a watch glass containing dry phosphorus pentoxide. Phosphorus pentoxide is a powerful dehydrating agent, which reacts exothermically with water, giving off so much heat that some water is lost as steam. The reaction produces phosphoric acid. Phosphorus pentoxide is such a powerful dehydrating agent that it is used to remove water even from molecules to which the oxygen is tightly bound, such as amides, which feature a carbon-oxygen double bond.

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Keywords: black background, bubbling, chemical, chemistry, dehydrating agent, dehydration, demonstrating, demonstration, desiccant, desiccating, education, educational, fizzing, gas, glassware, high speed, high-speed, phosphoric acid, phosphorus pentoxide, powder, reactant, reacting, reaction, school, science, slo mo, slo-mo, slow motion, slowed down, steam, steaming, watch glass, water

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Phosphorus pentoxide reacting with water

K004/0793 Rights Managed

Downloadable master

Duration: 00:03:05.18

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 5.2G

Original

Capture format: Sony FS700

Codec: H.264

Interlaced: Yes

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

 

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