Interaction | Reaction | Process     Data Page

Sulfur dioxide dissolved in and reacts with water to give sulfurous acid, but the equilibrium lies to the left and sulfurous acid is unstable. The acid must be trapped as a bisulfite or sulfite salt.

The chemistry is analogous to that of carbon dioxide, carbonic acid, the bicarbonate ion and the carbonate ion.

The solution is acidic, pH 1-3.
SO2
  +  
H2O
         
H2SO3
Reactant Page Go To Go To
Sulfur dioxide     Reactions Using    Reactions Forming
Water     Reactions Using    Reactions Forming
Sulfurous acid     Reactions Using    Reactions Forming

Interaction, Reaction, Process defined as:
British A-Level Chemistry: A2
British A-Level Chemistry: AS
Decomplexation or Fragmentation
Elimination: First Order

© Mark R. Leach 1999 –

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