silver nitrate

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silver nitrate

(nī`trāt), chemical compound, AgNO3, a colorless crystalline material that is very soluble in water. The most important compound of silver, it is used in the preparation of silver salts for photographyphotography, still,
science and art of making permanent images on light-sensitive materials.

See also photographic processing; motion picture photography; motion pictures.
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, in chemical analysis, in silver plating, in inks and hair dyes, and to silver mirrors. It is used in medicine in the treatment of eye infections and gonorrhea. Fused silver nitrate is also called lunar caustic. Taken internally silver nitrate is a poison. It is prepared by reaction of nitric acid with silver, and purified by recrystallization. It is darkened by sunlight or contact with organic matter such as the skin.

Silver Nitrate

 

AgNO3, a compound occurring as colorless crystals with two modifications: orthorhombic and rhom-bohedral (stable above 157°C). Silver nitrate has a density of 4.352 g/cm3 (19°C) and a melting point of 209.6°C. Its solubility in water is 69.5 percent by weight (20°C). Silver nitrate forms solid solutions with nitrates of alkali and alkaline-earth metals. When heated to 350°C, silver nitrate decomposes to yield metallic silver; the latter is also formed upon the action of reducing agents (hydrogen, sulfides) on AgNO3. Silver nitrate is obtained by the action of HNO3 on silver in the presence of HNO2 traces.

Silver nitrate is used in the preparation of all other silver compounds. It is also used in the photographic industry, in glassmaking, and in the production of dyes for the textile industry. In organic and analytical chemistry, silver nitrate serves as a catalyst and oxidizing agent. In medicine it is used as an astringent, cauterant, and bactericide. [23–876–]

silver nitrate

[′sil·vər ′nī‚trāt]
(inorganic chemistry)
AgNO3 Poisonous, corrosive, colorless crystals; soluble in glycerol, water, and hot alcohol; melts at 212°C; used in external medicine, photography, hair dyeing, silver plating, ink manufacture, and mirror silvering, and as a chemical reagent.
References in periodicals archive ?
After co-cultivation, cotyledonary node explants were transferred to selective medium (MS + 2 mg L-1 6-BA + 2 mg L-1 AgNO3 + 300 mg L-1 cefotaxime + 50 mg L-1 kanamycin).
Among different metal ions CaCl2 gave best results for the optimum production of enzyme and AgNO3 was the strongest inhibitor for the production of alpha amylase.
A solution of Actaea racemosa was heated to 800 C and was then induced with 10-3 M of AgNO3.
El uso de agentes inhibidores de la accion del etileno como el AgNO3, ha sido reportado como un inductor de la embriogenesis somatica (Carron, 1995a).
3H2O, AgNO3 and Zn(NO3)2 and organic solvents were purchased from Merck, BDH and Sigma-Aldrich.
The effects of plant growth regulators, activated charcoal, and AgNO3 on microspore derived embryo formation in broccoli (Brassica oleracea L.
For heavy metal resistance profiling different concentrations of the following metals were tested; AgNO3, ZnSO4, CdCl2, PbNO3 (stock solution: 0.
The resultant aqueous filtrate was treated individually with 50 mL aqueous solution of AgNO3 and HAuCl4.
05 g/50ml of polyvinylpyrrolidone (PVP) was added to the AgNO3 solution.