In the preparation of H2SO4 by Contact Process,

Question:

In the preparation of H2SO4 by Contact Process, why is SO3 not absorbed directly in water to form H2SO4?

Solution:

Dissolution of SO3 in water is highly exothermic. This leads to the formation of a mist of tiny droplets which are highly corrosive and they can even attack the lead

pipelines (lead pipelines are used to cover the tower in contact process).

Leave a comment

None
Free Study Material