Question

Why SO3 is used in Sulphonation?

Answer 1

Answer:

The purpose of admixing the sulfur trioxide vapour with a diluent gas is to reduce the partial pressure of the sulfur trioxide, so that the chance of a single molecule of the material being sulfated or sulfonated contacting several molecules of Sulfur trioxide is reduced.

Answer 2

Answer:

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The purpose of admixing the sulfur trioxide vapour with a diluent gas is to reduce the partial pressure of the sulfur trioxide, so that the chance of a single molecule of the material being sulfated or sulfonated contacting several molecules of Sulfur trioxide is reduced.