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Diffusion

Diffusion

A350/0119

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Credit

ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY

Caption

Diffusion. Potassium permanganate (KMnO4, purple) crystals dissolving in water. As the potassium permanganate dissolves it diffuses throughout the water forming a solution. Diffusion is caused by the tiny, random movements of molecules in a solution. Over a period of time these movements cause the dissolved substance to become evenly dispersed throughout the solvent. The potassium permanganate will eventually produce a uniform purple solution without being stirred.

Release details

Model release not required. Property release not required.

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