Science Source General Science

EN_90286235_0066

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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.

headline Science Source General Science

created date 2010-02-13

credit EAST NEWS

source Science Source

byline Charles D. Winters

original transmission reference 2k8429

weight 2,4MB

size 22cm x 33cm by 300dpi

keywords - Show

AND, AS, AT, BLACK, CHARLES, CHEMISTRY, CONCEPT, COOL, CRYSTAL, CRYSTALLIZING, CRYSTALS, DEMONSTRATION, EDUCATION, EDUCATIONAL, ELEMENT, FLASK, FORMATION, GAS, GENTLE, HEATING, IN, IODINE, IS, KNOWN, LAB, LABORATORY, MATTER, OF, ON, PROCESS, PURIFIED, PURPLE, RECRYSTALLIZES, RESULTS, ROOM, SAND, SCIENCE, SOLID, SOLID-GAS, STATES, SUBLIMATION, SURFACES, TEMPERATURE, THE, THIS, TRANSITION, TUBE, VAPOR, WINTERS,