[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as an odorless, silvery metallic liquid. Insoluble in water. Toxic by ingestion, absorption and inhalation of the fumes. Corrosive to aluminum. Used as a catalyst in instruments, boilers, mirror coatings."}, {"from": "gpt", "value": "[Hg]"}]