Chlorofluorocarbon (CFC), is a compound derivated from saturated hydrocarbon obtained by the replacing of hidrogen atoms by fluorine/chlorine atoms. They are used in several aplications, mainly in refrigeration and aerosols industry. CFC is also in thermal insulation. It can remain in the atmosphere from 50 to 100 years. CFC is been separated by the action of the UV in the stratosphere, and it destroys the ozone. The method of attack of CFC is a photochemical reaction. When the light hits a CFC molecule, it releases a chlorine atom that destroys the ozone atoms. Only a chlorine atom can destroy 30,000 ozone atoms.
Good job by writing about this, I think few people know the negative effects of CFCs. Fortunately, Europe forbade to industries the use CFC
ResponderEliminarGreat article because we use a lot of CFCs. We can use bromine halocarbons and nitrogen oxides from fertilizers. Refrigerants HCFs have been invented as an alternative to replace CFCs and HCFCs
ResponderEliminarI think we should figh against the use of CFCs because they harm the ozobe layer. Nowadays, the use of CFCs in spain is forbidden, but they are used yet.
ResponderEliminarSource: http://en.wikipedia.org/wiki/Chlorofluorocarbon