Chemical elements
  Silver
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Silver fluoride
      Silver subfluoride
      Silver chloride
      Silver subchloride
      Photohalides
      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 subfluoride, Ag2F






When a saturated solution of silver fluoride is heated with finely divided silver, a golden-yellow, crystalline precipitate of the composition Silver subfluoride, Ag2F is produced. The reaction is attended by the evolution of 0.7 Cal., and the heat of formation of the subfluoride from its elements is 26.3 Cal. At 180° C. water-vapour converts the fluoride into the suboxide, Ag4O.

The dihydrate, Ag2F,2H2O, is obtained in colourless octahedra by evaporating a solution of silver fluoride in absence of light, and removing excess of silver fluoride by extracting with alcohol.


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