Chemical elements
    Physical Properties
    Chemical Properties
      Rubidium hydride
      Rubidium fluoride
      Rubidium chloride
      Rubidium bromide
      Rubidium iodide
      Rubidium chlorate
      Rubidium perchlorate
      Rubidium iodate
      Rubidium periodate
      Rubidium monoxide
      Rubidium peroxides
      Rubidium hydroxide
      Rubidium peroxide hydrate
      Rubidium sulphides
      Rubidium sulphate
      Rubidium hydrogen sulphate
      Rubidium persulphate
      Rubidium thiosulphate
      Rubidium dithionate
      Rubidium trithionate
      Rubidium tetrathionate
      Rubidium selenate
      Rubidium tellurates
      Rubidium nitride
      Rubidium hydrazoate
      Rubidium nitrite
      Rubidium nitrate
      Rubidium phosphide
      Rubidium phosphates
      Rubidium carbide
      Rubidium carbonate
      Rubidium hydrogen carbonate
      Rubidium percarbonate
      Rubidium pentaborate
    PDB 1dge-461d

Rubidium trithionate, Rb2S3O6

When rubidium persulphate reacts with somewhat more than twice the molecular proportion of strontium thiosulphate in solution, rubidium tetrathionate is formed:

Rb2S2O8+2SrS2O3 =Rb2S4O6+2SrSO4.

The strontium sulphite produced by decomposition of the excess of strontium thiosulphate then reacts with the rubidium tetrathionate, forming trithionate:

Rb2S4O6+SrS3 = Rb2S3O6+SrS2O3.

In presence of sulphurous acid a similar reaction takes place. The trithionate forms rhombic crystals isomorphous with those of the corresponding potassium salt, the density being 2.845.

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