Chemical elements
  Samarium
    Isotopes
    Energy
    Production
    Application
    Chemical properties
      Samarium fluoride
      Samarium chloride
      Samarium oxychloride
      Samarium subchloride
      Samarium bromide
      Samarium iodide
      Samarium subiodide
      Samarium bromate
      Samarium iodate
      Samarium periodate
      Samarium sesquioxide
      Samaria
      Samarium sulphide
      Samarium sulphite
      Samarium sulphate
      Samarium selenite
      Samarium selenate
      Samarium chromate
      Samarium molybdate
      Samarium tungstate
      Samarium silicotungstate
      Samarium nitrate
      Samarium orthophosphate
      Samarium hydrogen pyrophosphate
      Samarium vanadates
      Samarium carbide
      Samarium carbonate
      Samarium platinocyanide
      Samarium thiocyanate
      Samarium ethylsulphate
      Samarium acetylacetonate
      Samarium oxalate
      Samarium orthoborate
      Samarium metaborate
    PDB 1a3c-4f3v

Chemical properties of Samarium





Compounds of Samarium

The majority of the known compounds of samarium are salts derived from the basic oxide Sm2O3. They are pale yellow in colour and the absorption spectra of their solutions exhibit characteristic bands in the blue and violet. Two compounds of the type SmX2, however, are known, viz., the chloride and iodide.

The equivalent conductivities (λ) of samarium chloride and sulphate solutions at 25° C. indicate that the salts are derived from a fairly strong triacid base (v = litres per gram-equivalent): -

SmCl3v=32.5965.18130.36260.72521.441042.9
λ=107.2112.5120.8126.1131.3135.9
Sm2(SO4)3v=31.3562.70125.40250.80501.601003.2
λ=31.1743.4951.5961.3972.7689.24


The compounds of samarium have been described mainly by Cleve, whose samaria was contaminated with a little europia.


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