Reaction rate constants of OH + CHF3 → products and O(3P) + CHF3 → OH + CF3 at 500–750 K

The reactions OH + CHF3 → products and O(3P) + CHF3 → OH + CF3 were studied in the temperature range 500–750 K and the pressure range 20–160 Torr using laser-induced-fluorescence detection of OH. For the reaction, OH + CHF3, the experimental rate coefficient is k = (1.1 ± 0.3) × 10−12 exp(−(2300 ± 200)/T). For the reaction O(3P + CHF3 → OH, the rate coefficient is k = (2.49 ± 0.06) × 10−13 exp(3000 ± 1000)/T) in the temperature range studied. For the reaction CF3CFHCF3 + O(3P) → OH + CF3CFCF3, an upper limit for the rate coefficient is determined to be k < (3.6 ± 2.2) × 10−13 exp(−(2700 ± 400)/T).