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 ?
Silver Nitrate imports data broken down by region and country (2011)
6c) by superficial keratectomy technique and operated site was cauterized by meticulously applying silver nitrate crystals on cancerous tissue without damaging the surrounding tissue (Fig.
Reaction mixture containing i) 20ml of 1mM silver nitrate & 1g of overnight grown cell pellet ii) 20 ml of 1mM of silver nitrate & 20ml of overnight grown cell supernatant were used for SNS production and the resultant reaction mixtures were analyzed for colour change and UV-Vis spectrum.
Silver nitrate 30 g Distilled water 100 mL Ethanol 1000 mL
Then, he synthesized silver nanowires in this nanometric matrix by means of silver nitrate chemical reduction.
We report our study of the histologic effect of topical silver nitrate on samples of septal tissue obtained from 11 patients.
Using silver nitrate on linen (1992) and later silver sulfate (1994), Nicholas P.
Various silver preparations, ranging from silver nitrate to colloidal silver, have been used in the past in an effort to deliver silver ions in and on the body.
First, we poured definite amounts of silver nitrate (as silver ion source) and silica (as base) into a balloon together with distilled water to prepare the primary solution.
The coating, made of silver nitrate and other chemicals, creates an "air film" around the copper mesh, which prevents direct contact with water.
Granulation tissue at the site of contact between a stone and the nasal mucosa can be cauterized with silver nitrate.
They achieved this by putting their lattice-containing gel on an electrode, immersing it in a silver nitrate solution, and then applying current.