INFRARED ABSORPTION CROSS SECTIONS AND BAND STRENGTHS OF HFC-32 VAPOUR (DIFLUOROMETHANE)
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Abstract
Recent, legislation controlling the use Chlorofluorocarbons (CFCs) has led to the introduction of replacement compounds, hydrochlorofluorocarbons (HCFCs), in a wide range of domestic and industrial applications. However from 2030 the usage of HCFCs will also be controlled and the more environmentally acceptable Hydrofluorocarbons (HFCs) will probably replace them. The C-H bonds present in HCFCs and HCFs allows destruction in the atmosphere by reaction with OH radicals significantly reducing the lifetime of these compounds compared with CFCs. However, many HCFC and HFC compounds absorb strongly in the mid-infrared, particularly in the 8-12
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Author Institution: Department of Physics and Applied Physics, Strathclyde University; Atmospheric science division, Space science Department, Rutherford Appleton Laborator; Atmospheric science division, Space science Department, Rutherford Appleton Laborator; Department of Physics and Applied Physics, Strathclyde University; Atmospheric science division, Space science Department, Rutherford Appleton Laborator