I am currently working on an undergraduate experiment to form a cyclic acetal. We were asked to use p-toluenesulfonic acid as a catalyst rather than sulfuric acid. This seems to be common practice when forming an acetal, but the reasons given are not satisfactory to me.
Being a solid, it is more easy to handle, I can understand that. But another reason given is that it is less dehydrating than sulfuric acid. In the formation of acetals, water is being formed as a product, thus dehydrating effects of the acid would be productive. In this case, it would not make a difference since I am using a water separator, but still I am wondering why dehydrating effects of the acid are not desired.
Is there any other reason I am missing? If so, I would also be happy about literature references.