1. Advances in sulphonation techniques : liquid sulphur dioxide as a solvent of sulphur trioxide /: liquid sulphur dioxide as a solvent of sulphur trioxide. (2016) Authors: Ashar, Navin G Record Type: Book Extent: 1 online resource (xiii, 91 pages), illustrations View Content: Available online (eLD content is only available in our Reading Rooms) ↗