KnowraSulfur trioxideLinked fromLinked fromThe 7 pages that link to Sulfur trioxide, each with the reason it gives.All 7Broader topic 1Related 5Compared with 1Sulfuric acidRelated: Absorption of this oxide into water forms sulfuric acid.Contact processRelated: It is the immediate product of oxidation and the precursor absorbed to make acid.SulfonationRelated: It is the principal electrophile in many aromatic sulfonation mixtures.Fluorosulfuric acidRelated: It reacts with hydrogen fluoride in a standard preparation of fluorosulfuric acid.Chlorosulfuric acidRelated: Its strong sulfonating behavior is related to sulfur trioxide chemistry.