Credit: SCIENCE PHOTO LIBRARY MOTION

Caption: Iodine test for the presence of starch. Iodine in an aqueous solution of potassium iodide is added to the liquid in a beaker. This reacts with starch in the water to form a dark purple-black starch-iodide complex.

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Keywords: analysis, beaker, black, change, chemical, chemicals, chemistry, colour, colourless, complex, demonstration, detection, drop, dropping, experiment, formation, iodide, iodine, laboratory, liquid, pipette, potassium, purple-black, reaction, sample, solution, starch, test

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Iodine test for starch

K003/8974 Rights Managed

Downloadable master

Duration: 00:00:24

Frame size: 1920x1080

Frame rate: 25

Audio: No

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

File size: 841.3M

Original

Capture format: DSLR - AVCHD

Codec: H.264

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