Kinetics and mechanism of the photodecomposition of trifluorobromomethane and tetrafluorodibromoethane under the action of light with a wavelength of 253.7 nm

Photolysis of C2H2F2Br2 Mixture with O2 in the Oxygen Pressure Range 1–3.5 Torr

“…In this study, the photolysis of C 2 H 2 F 2 Br 2 was carried out by us in oxygen's partial pressures ranging from 1 to 3.5 Torr. This range of oxygen pressures corresponds to the atmospheric pressure of the latter at altitudes 23 to 31 km above sea level, i.e., in those regions of the stratosphere in which the ozone concen- The photolysis of C 2 F 4 Br 2 (this substance is still used to eliminate fires [11] despite its danger to the ozone layer [12]) has been studied both theoretically [13] and experimentally [14,15], while we did not find any published data on the photolysis or pyrolysis of C 2 H 2 F 2 Br 2 . Recently, the question of the use of hydrocarbons containing bromine atoms (freons) and hydrogen atoms for the elimination of fires has been intensively studied.…”