Chemical elements
  Lead
    Occurrence
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Lead Tetramethyl
      Lead Tetraethyl
      Lead Tetraphenyl
      Lead Ethoxide
      Lead Fluoride
      Lead Tetrafluoride
      Hydrofluoplumbic Acid
      Lead Chloride
      Lead Chloride Double Salts
      Basic Lead Chlorides
      Lead Tetrachloride
      Ammonium Plumbichloride
      Lead Chlorite
      Lead Chlorate
      Lead Perchlorate
      Lead Dibromide
      Double Salts of Lead Bromide
      Basic Lead Bromides
      Lead Bromate
      Lead Iodide
      Lead Iodide Complex Salts
      Basic Lead Iodides
      Lead Tetra-iodide
      Lead Iodate
      Lead Periodates
      Lead Suboxide
      Lead Monoxide
      Litharge
      Massicot
      Lead Hydroxides
      Lead Dioxide
      Plumbic Acids
      Hexahydroxyplumbic Acid
      Colloidal Plumbic Acid
      Potassium Plumbate
      Lead Plumbate
      Calcium Orthoplumbate
      Lead Orthoplumbate
      Red Lead
      Metaplumbic Acid
      Calcium Metaplumbate
      Lead Metaplumbate
      Basic Lead Plumbate
      Lead Sulphide
      Lead Sulphohalides
      Lead Polysulphide
      Lead Sulphite
      Lead Sulphates
      Lead Sulphate
      Basic Lead Sulphates
      Lead Hydrogen Sulphate
      Plumbic Sulphate
      Lead Persulphate
      Lead Thiosulphate
      Lead Dithionate
      Lead Selenide
      Lead Selenite
      Lead Selenate
      Lead Telluride
      Lead Tellurite
      Lead Azide
      Lead Azoimide
      Lead Hydrazoate
      Lead Imide
      Lead Hyponitrite
      Lead Nitrites
      Lead Nitrate
      Lead saltpetre
      Basic Lead Nitrates
      Lead Hypophosphite
      Lead Phosphite
      Lead Orthophosphate
      Lead Monohydrogen Phosphate
      Lead Dihydrogen Phosphate
      Lead Pyrophosphate
      Lead Metaphosphate
      Lead Arsenite
      Lead Orthoarsenate
      Lead Hydrogen Arsenate
      Lead Pyroarsenate
      Lead Antimonate
      Lead Carbonate
      White Lead
      Lead Formate
      Lead Acetate
      Sugar of Lead
      Complex Lead Acetates
      Plumbic Acetate
      Lead Tetra-acetate
      Lead Oxalate
      Lead Tartrate
      Lead Silicates
      Lead Borates
      Normal Lead Chromate
      Lead Dichromate
      Basic Lead Chromate
      Lead Molybdate
      Lead Tungstate
      Lead Metatungstate
      Lead Diuranate
      Lead Peruranate
    PDB 1afv-3qjk

Lead Fluoride, PbF2






Lead Fluoride, PbF2, is obtained as a white solid by the action of aqueous hydrofluoric acid on litharge or lead carbonate, or by precipitating the solution of a lead salt with a soluble fluoride. The heat of formation of this compound by the reaction Pb(OH)2 + 2HF (gas) is 48,600 calories; it is easily fused to a yellow liquid, and has a density of 8.241. It is almost insoluble in water and aqueous hydrofluoric acid, but easily dissolves in hydrochloric and nitric acids. Its solubility in water at 18° C. has been deduced by Kohlrausch from the conductivity of its saturated solution. The specific conductivity of the salt is 431, and 1 litre of a saturated solution contains 640 milligrams. Although an aqueous solution of lead fluoride shows little evidence of hydrolysis, the solid salt is hydrolysed by water-vapour into hydrofluoric acid and a basic salt.

A chlorofluoride of lead, PbFCl or PbF2.PbCl2, was prepared by Berzelius by precipitating a solution of sodium fluoride with lead chloride. It may also be obtained from lead fluoride and ammonium chloride, and crystallises in quadratic plates. It is slightly soluble in water without decomposition. Various double salts of lead fluoride with other halides of the same metal have been prepared by Sandonnini.


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