Silver nitrite

Names
IUPAC name Silver(I) nitrite
Other names Argentous nitrite
Identifiers
CAS Number	7783-99-5 Y
3D model (JSmol)	Interactive image
ChemSpider	141361 Y
ECHA InfoCard	100.029.128
EC Number	232-041-7
PubChemCID	160904
UNII	T3MZ57OGIF Y
CompTox Dashboard(EPA)	DTXSID00884428
InChI InChI=1S/Ag.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1 Key: KKKDGYXNGYJJRX-UHFFFAOYSA-M
SMILES N(=O)[O-].[Ag+]
Properties
Chemical formula	AgNO2
Molar mass	153.87 g/mol
Appearance	colorless to yellow crystals
Melting point	140 °C (284 °F; 413 K)
Solubility in water	0.155 g/100 mL (0 °C) 0.275 g/100 mL (15 °C) 1.363 g/100 mL (60 °C)
Solubility	insoluble inethanol
Magnetic susceptibility (χ)	−42.0·10−6 cm3/mol
Hazards
GHS labelling:[1]
Pictograms
Signal word	Warning
Hazard statements	H272,H302,H315,H319,H400
Precautionary statements	P210,P220,P221,P264,P270,P273,P280,P301+P312,P302+P352,P305+P351+P338,P321,P330,P332+P313,P337+P313,P362,P370+P378,P391,P501
NFPA 704 (fire diamond)	2 0 2
Safety data sheet (SDS)	Sigma-Aldrich
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Infobox references

Silver nitrite is aninorganic compound with the formula AgNO₂.^[2]

Silver nitrite has many applications. Notable examples include:

• The production ofaniline compounds.
• Generaloxidizing agent.
• Victor Meyer typenucleophilic substitution reactions withorganobromides ororganoiodides formingnitro compounds.^[3]
• Nitroalkene synthesis with nitryl iodide generatedin-situ from silver nitrite and elementaliodine.^[4]
• 1,2,3-Benzothiadiazoles synthesis via skeletal editing (S,N-heteroarene ring transformation) of variously functionalized 2-halobenzothiazoles and benzothiazolinones^[5]

Silver nitrite is produced from the reaction betweensilver nitrate and an alkali nitrite, such assodium nitrite.^[3] Silver nitrite is much less soluble in water than silver nitrate, and a solution of silver nitrate will readily precipitate silver nitrite upon addition of sodium nitrite:

AgNO_3(aq) + NaNO_2(s) → NaNO_3(aq) + AgNO_{2(precipitate)}

Alternatively, it can be produced by the reaction betweensilver sulfate andbarium nitrite.

• Silver compounds
• Nitrites

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