Silver nitrate, 99.9+%

CAS Number: 7761-88-8

Molecular Formula: AgNO3

Molecular Weight: 169.87

IUPAC Name: Silver nitrate

Other Names: Nitric acid silver(I) salt, Lapis infernalis

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Silver nitrate is an inorganic compound with chemical formula AgNO3. This compound is a versatile precursor to many other silver compounds, such as those used in photography. It is far less sensitive to light than the halides. It was once called lunar caustic because silver was called luna by the ancient alchemists, who believed that silver was associated with the moon. In solid silver nitrate, the silver ions are three-coordinated in a trigonal planar arrangement.

Silver nitrate is the least expensive salt of silver; it offers several other advantages as well. It is non-hygroscopic, in contrast to silver fluoroborateand silver perchlorate. It is relatively stable to light. Finally, it dissolves in numerous solvents, including water. The nitrate can be easily replaced by other ligands, rendering AgNO3 versatile. Treatment with solutions of halide ions gives a precipitate of AgX (X = Cl, Br, I). When making photographic film, silver nitrate is treated with halide salts of sodium or potassium to form insoluble silver halide in situ in photographic gelatin, which is then applied to strips of tri-acetate or polyester.

Silver nitrate is used in many ways in organic synthesis, e.g. for deprotection and oxidations. Ag+  binds alkenes reversibly, and silver nitrate has been used to separate mixtures of alkenes by selective absorption. The resulting adduct can be decomposed with ammonia to release the free alkene. In histology, silver nitrate is used for silver staining, for demonstrating reticular fibers, proteins and nucleic acids. For this reason it is also used to demonstrate proteins in PAGE gels. It can be used as a stain in scanning electron microscopy.

 
Data sheet
Chemical purity99.9+%
Molecular FormulaAgNO3
Molecular Weight169.87

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Silver nitrate, 99.9+%

CAS Number: 7761-88-8

Molecular Formula: AgNO3

Molecular Weight: 169.87

IUPAC Name: Silver nitrate

Other Names: Nitric acid silver(I) salt, Lapis infernalis

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