Silver Nitrate is an inorganic compound also known as Lunar Caustic with the formula of .
It is used in photography. It is also less light-sensitive than halides.
It was once called lunar caustic, since the ancient alchemists, who linked silver with the moon, called silver luna.
In solid silver nitrate, in a trigonal planar structure, silver ions are three-coordinated.
Silver nitrate can be treated with nitric acid by reacting with silver, such as silver bullion or silver foil, resulting in silver nitrate, water, and nitrogen oxides. The by-products of the reaction depend on the nitric acid concentration used.