Silver bromide (AgBr)

Silver bromide (AgBr)

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

Chemistry

Keywords

silver bromide, ionic compound, precipitation, fényképészet, cation, anion, break down, silver nitrate, potassium bromide, photoactive, inorganic chemistry, chemistry

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Silver bromide

Information

Molar mass: 187.77 g/mol

Melting point: 432 °C (809.6 °F)

Boiling point: 700 °C (1,292 °F), it degrades

Density: 6.473 g/cm³ (0.234 lb/in³)

Properties

Silver bromide is a pale yellow, crystalline substance with silver and bromide ions in a crystal lattice. It breaks down when exposed to light, turning into a pale grayish purple substance, while bromine is formed. It is weakly soluble in water, and it can easily be reduced.

Occurrence and production

It precipitates in a reaction of silver nitrate and potassium bromide. It can be found naturally as the mineral bromargyrite, mainly in Mexico.

Uses

Silver bromide is used in manufacturing the light-sensitive layers of photographic plates, films and papers and in creating optical windows.

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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.

Silver nitrate (AgNO₃)

One of the raw materials of traditional photography.

Metals

Metal atoms form a regular lattice structure.

Sodium chloride (NaCl)

Common salt (or table salt) is one of the most important sodium compounds, indispensable for living organisms.

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