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.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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–]

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Then cotyledonary node explants were removed, dried with sterilized filter paper and placed to co-cultivation medium (MS + 2 mg L-1 6-BA + 2 mg L-1 AgNO3 + 100 umol L-1 acetosyringone) under darkness for 0, 1, 2, 3, 4 or 5 days.
The experiment was repeated by using 2.0 and 3.0 mM AgNO3 separately in order to study the effect of concentration of the silver salt on Ag-NPs characteristics.
A column containing 500 mg of the exchanger (AECFs-6) in CF form was eluted with [Na.sub.2]S[O.sub.4] solution of this concentration in different 20 ml fractions with minimum flow rate as described above, and each fraction of 20 ml effluent was titrated with AgNO3 for the [Cl.sup.-] ions eluted out.
Three 20.00 mL aliquots of 0.062834 mol [L.sup.-1] NaCl (primary standard) solution were titrated with AgNO3 solution using chromate indicator.
Those authors fabricated the superhydrophobic surfaces with a 169 [+ or -] 0.2[degrees] WCA on Cu substrates by immersion in the 0.02 mol/L aqueous AgNO3 solution for 30 s and subsequent modification with n-octadecanethio1.
Vase life was increased three times by using solution containing 200 ppm silver nitrate (AgNO3) and 4mM silver thiosulfate STS (Bakash et al., 1999).
The PCR products were visualized on 8.5% polyacrylamide gels stained with silver solution (0.11 M AgNO3).
The figure gives the value of the charge penetrating the sample in coulombs [C], as well as the depth of chloride penetration into concrete fractures moistened by 0.1 mol/dm AgNO3 solution.
Los amplificados se visualizaron en geles de poliacrilamida (5%) preparados en camaras de electroforesis vertical (OWL Thermo Fisher Scientific Inc, Portsmouth, NH) y se revelaron por tincion con AgNO3 segun la metodologia de Bassam et al.