Chemical elements
  Palladium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Palladous Fluoride
      Palladous Chloride
      Dichlor-palladous Acid
      Tetrachlor-palladites
      Palladium Trichloride
      Pentachlor-palladates
      Hexachlor-palladates
      Palladous Bromide
      Brom-palladites
      Brom-palladates
      Palladous Iodide
      Palladous Oxide
      Hydrated Palladium Sesquioxide
      Hydrated Palladium Dioxide
      Palladium Subsulphide
      Palladium Monosulphide
      Potassium Thio-palladite
      Palladium Disulphide
      Sodium Thio-palladate
      Palladous Sulphate
      Palladous Selenide
      Palladous Selenate
      Palladous Nitrate
      Palladium Cyanide
      Potassium Palladocyanide
      Palladium Monosilicide
    Catalytic Activity
    Types
    PDB 1ks4-3np2

Potassium Thio-palladite, K2Pd3S4






Potassium Thio-palladite, K2Pd3S4, is obtained as hexagonal needles on heating to redness a mixture of 1 part of palladous sulphide with 12 parts of a mixture containing caustic potash and sulphur in equal proportions. Extraction of the melt with water leaves a residue of crystalline thio-palladite. The crystals are insoluble in water, violet-blue in colour when moist, but metallic grey when dry. They dissolve, with decomposition, in hydrochloric acid.

The aqueous solution of potassium thio-palladite interacts with one of silver nitrate to yield insoluble hexagonal lamellae of Silver Đ¢hio-palladite, Ag2Pd3S4.


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