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Atomistry » Rubidium » Chemical Properties » Rubidium trithionate | ||
Atomistry » Rubidium » Chemical Properties » Rubidium trithionate » |
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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