Chemical elements
    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
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      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
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      Lead Hydrogen Sulphate
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      Lead Thiosulphate
      Lead Dithionate
      Lead Selenide
      Lead Selenite
      Lead Selenate
      Lead Telluride
      Lead Tellurite
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      Lead Azoimide
      Lead Hydrazoate
      Lead Imide
      Lead Hyponitrite
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      Lead Nitrate
      Lead saltpetre
      Basic Lead Nitrates
      Lead Hypophosphite
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      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

Ammonium Plumbichloride, (NH4)2PbCl6

Ammonium Plumbichloride, (NH4)2PbCl6, has been prepared in several ways. It is obtained when cold hydrochloric acid acts on lead dioxide, and ammonium chloride is added to the resulting solution; by treating lead dichloride with fuming hydrochloric acid and chlorine under pressure, and then adding ammonium chloride; by adding ammonium chloride to the solution of hydrochloroplumbic acid obtained by electrolysis, or to a solution of lead tetra-acetate in hydrochloric acid; and by the interaction of lead dichloride and ammonium persulphate in hydrochloric acid solution, thus:

(NH4)2S2O8 + PbCl2 + 4HCl = (NH4)2PbCl6 + 2H2SO4.

Ammonium plumbichloride crystallises in citron-yellow octahedra, isomorphous with (NH4)2SnCl6 and (NH4)2PtCl6. It is stable in the air, and may be heated to 115° C. without perceptible decomposition; it decomposes, however, at 225° C. This salt has been employed for chlorinating aromatic hydrocarbons and their derivatives.

Potassium, rubidium, and caesium plumbichlorides resemble the ammonium salt; K2PbCl6 decomposes at 190° C., Rb2PbCl6 and Cs2PbCl6 at about 280° C. The quinoline and pyridine salts, (C9H7NH)2PbCl6 and (C5H5NH)2PbCl6, respectively, have been prepared.

A number of plumbichlorides have been prepared by Gutbier and Wissmuller by mixing hydrochloroplumbic acid with solutions of metallic or substituted ammonium chlorides. These salts are anhydrous, being X2PbCl6 or (R.NH3)2PbCl6, and are obtained in minute yellow or red crystals. Compounds of the alkali metals, and derivatives of the pyridine and quinoline series, are stable; aliphatic ammonium compounds tend to decompose in the air, evolving chlorine.

Lead tetrachloride forms compounds with ammonia and organic bases.

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