Caption: Phases of iodine. Time-lapse footage of iodine in a beaker being heated to produce a purple gas. At top, crystals of iodine form on the underside of a round-bottom flask filled with cold water as the gas deposits to re-form into a solid. 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). Boiling takes place at 184 degrees Celsius. Iodine, found in seaweed and sea water, is an essential part of the diet.

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Keywords: beaker, boil, boiling, chemical, chemistry, clip, crystalline, crystals, demonstration, depositing, deposition, education, educational, element, evaporating, evaporation, experiment, film, footage, gas, iodine, lab, laboratory, melt, melting, motion, no-one, nobody, phase, phase transition, phases, purple, round-bottom flask, school science, solid, speeded up, sublimating, sublimation, time-lapse, timelapse, video

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Phases of iodine, time-lapse footage

K007/2014 Rights Managed

Downloadable master

Duration: 00:00:53.12

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 756.4M


Capture format: Unknown

Frame size: 4096x2304

Codec: H.264

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