Iodine Sublimation

Iodine Sublimation

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Credit: CHARLES D. WINTERS/SCIENCE PHOTO LIBRARY

Caption: Iodine sublimation. Iodine at room temperature is a black solid. Gentle heating results in the formation of a purple gas. This solid-gas transition is known as sublimation. The vapor recrystallizes on the cool surfaces of the tube, and is purified in the process.

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Keywords: chemistry, concept, crystal, crystallizing, crystals, demonstration, education, educational, element, flask, iodine, iodine sublimation, lab, laboratory, sand, science, states of matter, sublimation

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