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7761-88-8 - Silver nitrate, 99+% - A13854 - Alfa Aesar

A13854 Silver nitrate, 99+%

Codice CAS
7761-88-8
Sinonimi

Silver nitrate, 99+%

MDL
MFCD00003414
EINECS
231-853-9

Proprietà chimiche

Formula
AgNO3
Peso formula
169.88
Punto di fusione
212°
Punto di ebollizione
444° dec.
Densità
4.352
Sensibilità
Light Sensitive
Solubilità
Freely soluble in water, alcohol and aqueous ammonia. Slightly soluble in ether.

Applicazioni

Silver nitrate is employed in Silver plating, photography, manufacturing of other silver compounds, mirrors, coloring porcelain, and staining in histology. It finds use as a stain in scanning electron microscopy, and a key ingredient in several silver-based antiseptic and antibacterial pharmaceutical compositions. Silver(I) nitrate can be used to separate mixtures of alkenes by selective absorption, and for deprotection and oxidation reactions in organic synthesis. It is widely used as an analytical reagent owing to its immediate reaction with halide ions forming insoluble precipitate of silver(I) halides.

Note

Sensitive to light; hence store in light resistant containers. Corrosive solid. Relatively more stable to light than other salts. Color changes to grey or greyish black on exposure to light or air in the presence of organic matter.

Letteratura

Forms complexes with alkenes, used in the separation of mixtures; see, e.g.: Org. Synth. Coll., 5, 315 (1973).

Promotes the reactivity of NCS in the cleavage of 2-acylated 1,3-dithianes: Synthesis, 17 (1969), and of NBS in the 1-bromination of terminal alkynes: Angew. Chem. Int. Ed., 23, 727 (1984).

In combination with Br2 or I2 in refluxing methanol, brings about the rearrangement of acetophenones to methyl arylacetates, a reaction previously induced by thallium(III) nitrate: J. Chem. Soc., Perkin 1, 235 (1982):

The Hunsdiecker reaction of Ag salts of carboxylic acids with Br2 provides alkyl bromides with one less carbon atom which is lost as CO2; see, e.g.: Org. Synth. Coll., 3, 578 (1955). Reviews: Chem. Rev., 56, 219 (1956); Org. React., 9, 332 (1957). Compare also Mercury(II)­ oxide, A16157.

For the alkylation of substrates by radicals derived from decarboxylation of acids, see Trimethyl­acetic acid, A10776.

/n

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H272-H290-H314

May intensify fire; oxidizer. May be corrosive to metals. Causes severe skin burns and eye damage.

Dichiarazioni precauzionali: P221-P210v-P303+P361+P353-P305+P351+P338-P405-P501a

Take any precaution to avoid mixing with combustibles. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,8518
Classe di rischio
5.1
Gruppo di imballaggio
I
Codice tariffe armonizzato
2843.21
TSCA
Yes
RTECS
VW4725000

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