Credit: NILERED/SCIENCE PHOTO LIBRARY

Caption: Iodine sublimation and melting. Solid iodine being heated in a laboratory beaker, with a watch-glass used to trap the resulting purple gas. The heating is also melting the iodine. Iodine at room temperature is a grey-black solid. Gentle heating below the melting point drives a solid-gas transition known as sublimation. Further heating results in the iodine melting (at 113 degrees Celsius). The iodine gas deposits on the cooler underside of the watch-glass to form solid iodine crystals. Iodine, found in seaweed and sea water, is an essential part of the diet.

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Keywords: 4k, beaker, chemical, chemist, chemistry, clip, crystals, demonstration, demonstrator, depositing, deposition, education, educational, element, experiment, film, footage, gas, iodine, lab, laboratory, liquid, melting, melting point, motion, one person, people, person, phase, phase transition, phases, purple, school science, solid, sublimating, sublimation, uhd, video, watch glass, watch-glass, watchglass

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Iodine sublimation and melting

K007/2044 Rights Managed

Downloadable master

Duration: 00:00:41.05

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 617.8M

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Capture format: Unknown

Frame size: 3840x2160

Codec: H.264

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