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Long path length FTIR-smog chamber techniques were used to determine k(Cl+CF₃CFCH₂)=(7.03±0.59)×10⁻¹¹, k(OH+CF₃CFCH₂)=(1.05±0.17)×10⁻¹², and k(O₃+CF₃CFCH₂)=(2.77±0.21)×10⁻²¹cm³molecule⁻¹s⁻¹ in 700Torr of N₂, N₂/O₂, or air diluent at 296K. CF₃CFCH₂ has an atmospheric lifetime of approximately 11 days and a global warming potential (100 yr time horizon) of four. CF₃CFCH₂ has a negligible global warming potential and will not make any significant contribution to radiative forcing of climate change.