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Process of solidifying and removing toluene from an oil-water mixture: (a) Aqueous biphasic mixture of toluene, dyed with Disperse Red 152; (b) Addition of the powdered gelator; (c) Instantaneous gelation of the toluene layer; (d) Removal of the solidified toluene layer; (e) Toluene gel after removal; (f) Graduated cylinder containing the recovered toluene and recovered gelator (separated by vacuum distillation). Reprinted with permission from [72]. Copyright (2020) Elsevier.
