Chemical elements
    Physical Properties
    Chemical Properties
      Silver fluoride
      Silver subfluoride
      Silver chloride
      Silver subchloride
      Silver bromide
      Silver oxybromide
      Silver subbromide
      Silver iodide
      Silver hypochlorite
      Silver chlorite
      Silver chlorate
      Silver perchlorate
      Silver bromate
      Silver perbromate
      Silver iodate
      Silver periodates
      Silver suboxide
      Silver monoxide
      Higher oxides
      Silver subsulphide
      Silver sulphide
      Silver sulphite
      Silver sulphate
      Silver selenide
      Silver telluride
      Silver thiosulphate
      Silver dithionate
      Silver azide
      Silver hyponitrite
      Silver nitrite
      Silver nitrate
      Silver phosphides
      Silver hypophosphate
      Silver orthophosphate
      Silver pyrophosphate
      Silver metaphosphate
      Silver arsenite
      Silver arsenate
      Silver carbide
      Silver carbonate
      Silver cyanide
      Silver thiocyanate
      Silver borate
    PDB 1aoo-3kso

Silver nitrite, AgNO2

Sodium nitrite and the corresponding salts of potassium and barium react with Silver nitrate to form Silver nitrite, AgNO2. It crystallizes in long, greenish-yellow, rhombic needles, the density at 0° C. being 4.542, and between 21° and 31° C. 4.453. At 15° C. its percentage-solubility is 0.2752, and at 18° C. 0.0216 gram-molecules dissolve in 1 litre of water.

In the moist condition the salt is readily reduced by organic matter. When heated rapidly in vacuo, it is completely decomposed into silver and nitrogen peroxide. Slower heating in air causes side-reactions in accordance with the equations

Ag + 2NO2 = AgNO3 + NO;
AgNO2 + NO2 = AgNO3 + NO.

Several double salts with alkali-metal nitrites have been described. Double compounds with ammonia of the formulae AgNO2,NH3; AgNO2,2NH3; and AgNO2,3NH3 have also been prepared. A double salt with caesium, AgCs(NO2)2, is formed by the interaction of caesium nitrite and silver nitrite. It crystallizes in lemon-yellow needles.

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