0环行 Uses of Alkyl Halides" Solvents-degreasers and dry cleaning fluid Reagents for synthesis of other compounds Anesthetic:Halothane is CFCHCIBr ●CHCl3 used originally(toxic and carcinogenic)麻醉剂 >In 1847,the Edinburgh obstetrician James Young Simpson first used chloroform for general anesthesia during childbirth Freons,chlorofluorocarbons or CFC's Freon 12,CF2Cl2,now replaced with Freon 22, CF,CHCI,not as harmful to ozone layer. Pesticides -DDT banned in U.S. extremely toxic to insects but not as toxic to mammals Uses of Alkyl Halides Solvents - degreasers and dry cleaning fluid Reagents for synthesis of other compounds Anesthetic: Halothane is CF 3CHClBr CHCl 3 used originally (toxic and carcinogenic)麻醉剂 In 1847, the Edinburgh obstetrician James Young Simpson first used chloroform for general anesthesia during childbirth Freons, chlorofluorocarbons or CFC’s Freon 12, CF 2Cl 2, now replaced with Freon 22, CF 2CHCl, not as harmful to ozone layer. Pesticides - DDT banned in U.S. extremely toxic to insects but not as toxic to mammals