Sulphuryl
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The hypothetical radical SO2; -- called also sulphon. Sulphurylchloride, a chloride, pungent, fuming liquid, SO2.Cl2, obtained bythe action of phosphorus pentachloride on sulphur trioxide. Ontreatment with water it decomposes into sulphuric and hydrochloricacids, and is hence called also sulphuric chloranhydride.
Sulphuryl meaning & definition 1 of Sulphuryl.