Silver nitrate (AgNO₃)

Silver nitrate (AgNO₃)

One of the raw materials of traditional photography.



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Silver nitrate AgNO₃


Molar mass: 169.87 g/mol

Melting point: 212 °C (413.6 °F)

Boiling point: 444 °C (831 °F)

Density 4.35 g/cm³ (0.157 lb/in³)


Silver nitrate is a salt formed from silver with nitric acid. It is a colorless, crystalline, water soluble compound. Exposure to light or organic substances reduces its silver ions to metallic silver. It leaves black stains on the skin.


Dissolving silver in nitric acid results in silver nitrate.


Silver nitrate is one of the raw materials in traditional photography; it is also used for producing permanent inks. Furthermore, it is used for disinfecting mucous membranes and as a cure for warts when mixed with sodium nitrate. It is an important reagent in detecting aldehydes in organic compounds in the so-called silver mirror test. It is also used in the manufacture of mirrors.

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The first commercially successful technique of photography was invented by the French Louis Daguerre.

Nitrate ion (NO₃⁻)

A compound ion, the main source of nitrogen for plants.

Nitric acid (HNO₃)

One of the oxoacids of nitrogen. A colorless compound with a pungent odor, a strong oxidant.

Silver bromide (AgBr)

A white, crystalline compound which breaks down when exposed to light.

Silver chloride (AgCl)

A white, crystalline compound that breaks down when affected by light.

Silver iodide (AgI)

A light yellow compound formed in the reaction of silver nitrate and potassium iodide.


Metal atoms form a regular lattice structure.

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