John Myers, San Diego, Calif.
The sulfuric acid in volcanic aerosols is the result of not one reaction but a series of reactions involving sulfur dioxide (from the volcano), oxygen (from the atmosphere) and water (from both sources). One of those pathways, as you mention, first creates sulfurous acid that then reacts with oxygen to make sulfuric acid In the other set of reactions, sulfur dioxide reacts with oxygen to make sulfur trioxide, which then reacts with water to create sulfuric acid.--Sid Perkins
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|Author:||Myers, John; Perkins, Sid|
|Article Type:||Letter to the editor|
|Date:||Nov 8, 2008|
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