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 7VD8
Zn in 7V1R
Zn in 7V1Q
Zn in 7VPF
Zn in 7T85
Zn in 7T5F
Zn in 7NF9
Zn in 7M4M
Zn in 7M4O
Zn in 7M4N
© Copyright 2008-2020 by
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy