Silver iodide

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Silver iodide

Silver iodide is a chemical compound. Its chemical formula is AgI. It contains silver in its +1 oxidation state. It also contains iodide ions.

Properties[change | edit source]

Silver iodide is a yellow solid. It does not dissolve in water. It turns dark when light is shined on it. The darkening is caused by a chemical reaction. The silver iodide turns into silver and iodine.

Preparation[change | edit source]

It is made by reacting an iodide such as sodium iodide with silver nitrate.

Uses[change | edit source]

Silver iodide generator on airplane

Silver iodide is sprinkled in clouds to make rain. It can also be used in photographic film.

Safety[change | edit source]

Silver iodide is toxic. It can stain skin. It is not as toxic as other silver compounds that dissolve in water. The iodide also is toxic.

Related pages[change | edit source]