Silver iodide is 45.9% silver by mass. Silver iodide is a chemical compound with the chemical formula AgI, and it contains silver in its +1 oxidation state.
Silver iodide has many uses, including:
Antiseptic: Silver iodide powder has been used as an antiseptic.
Cloud seeding: Silver iodide is used to seed clouds for rain. The Environmental Protection Agency (EPA) considers silver iodide a hazardous substance, a priority pollutant, and a toxic pollutant.
Medication: Colloidal silver iodide solutions have been used to treat mucous membrane infections. Ointments containing silver iodide have been used to treat inflammatory conditions of the eye, ear, and nose.