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.

Silver iodide

Properties

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

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

Uses

Silver iodide generator on airplane

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

Safety

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

• Silver fluoride
• Silver chloride
• Silver bromide