AgNO3 (3 is subscript). Silver nitrate consists of silver ions and nitrate ions, and the silver element of the valence is +1, silver nitrate valence is -1, so the chemical formula for AgNO3. is an inorganic compound, white crystalline powder, soluble in water, ammonia, glycerol, slightly soluble in ethanol, silver nitrate is used in photographic emulsion, silver plating, mirror, printing, medicine, hair dyeing, testing chlorine, bromine and iodine ions, etc., but also used in the electronics industry. It is also used in electronic industry. Please note that silver nitrate is included in the List of Explosive Hazardous Chemicals and should be controlled in accordance with relevant regulations.