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Chlorine displacing iodine

Chlorine displacing iodine

A500/0386

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Credit

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

Caption

Chlorine displacing iodine. Chlorine gas bubbling through an aqueous solution of potassium iodide in a test tube. The reaction is turning brown due to the iodine's displacement. A clear solution of potassium iodide is seen at left in a glass bottle. This reaction is known as a displacement or substitution. The chlorine is said to be more reactive than iodine, so it replaces the iodine in the potassium salt, causing a brown aqueous iodine solution to form. The equation for this reactions is: Cl2 + 2KI ---> I2.

Release details

Model release not required. Property release not required.

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