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About: Dibromomethane     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : umbel-rc:ChemicalSubstanceType, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingdul:ChemicalObjectchemical substanceChemical compoundyago:Matter100020827yago:PhysicalEntity100001930yago:Refrigerant115003797chemical compoundyago:Substance100020090yago:WikicatRefrigerantsumbel-rc:ChemicalSubstanceType New Facet based on Instances of this Class

Dibromomethane is prepared commercially from dichloromethane via bromochloromethane: 6 CH2Cl2 + 3 Br2 + 2 Al → 6 CH2BrCl + 2 AlCl3CH2Cl2 + HBr → CH2BrCl + HCl The latter route requires aluminium trichloride as a catalyst.The bromochloromethane product from either reaction can further react in a similar manner: 6 CH2BrCl + 3 Br2 + 2 Al → 6 CH2Br2 + 2 AlCl3CH2BrCl + HBr → CH2Br2 + HCl In the laboratory, it is prepared from bromoform: CHBr3 + Na3AsO3 + NaOH → CH2Br2 + Na3AsO4 + NaBr using sodium arsenite and sodium hydroxide. Another way is to prepare it from diiodomethane and bromine.