Silver nitrate
The Nitrate of money has as an empirical formula: Ag NR O 3
The equation of its dissolution in the Eau is: AgNO3 → Ag+ (aq) + NO3- (aq)
It is in particular used in the reactive of Tollens for tests of recognition of the Aldéhyde S.
It is also employed to identify the ions Chlorure Cl- (It is formed a white precipitate which blackens with the light).
It is an external disinfectant, caustic function.
Nitrate and the Halide S of money - Bromide, Chloride and Iodure of money blackens after exposure to the light: they are employed in the emulsion S for the photographic plates, film and paper. Their salts are soluble in the Thiosulfate of sodium, made up used in the photographic process of fixing.
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