Atomistry » Selenium » Chemical Properties » Diselenotrithionic Acid
Atomistry »
  Selenium »
    Chemical Properties »
      Diselenotrithionic Acid »

Diselenotrithionic Acid, H2Se2SO6

If in the interaction of selenious and sulphurous acids an excess (that is, more than a semi- molecular proportion) of the former is taken, the odour of sulphur dioxide soon disappears and apparently a Diselenotrithionic Acid, H2Se2SO6, is formed in the solution:

2H2SO3 + 2H2SeO3 = H2Se2SO6 + H2SO4 + 2H2O.

The acid is even less stable than selenotrithionic acid; its aqueous solution decomposes in the light or on warming; in fact, it cannot even be preserved in the dark. Acids and alkalis also bring about its decomposition. Treatment with barium carbonate, as in the case of the preceding acid, gives a solution of the barium salt which, however, is less stable than barium selenotrithionate, and the solution decomposes slowly in the dark.

Last articles

Zn in 7OQY
Zn in 7PEL
Zn in 7OYG
Zn in 7P3S
Zn in 7PE7
Zn in 7RZC
Zn in 7PE9
Zn in 7PE8
Zn in 7RAG
Zn in 7RN5
© Copyright 2008-2020 by
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy