Kinetics of the thermal decomposition of bis‐pentafluorosulfur trioxide(SF₅O₃SF₅) in the presence of carbon monoxide

Abstract

Abstract The thermal decomposition of SF 5 O 3 SF 5 in the presence of CO has been investigated between ‐9.8°C and + 9.9°C. Besides traces of S 2 F 10 , equimolecular amounts of SF 5 O 2 SF 5 and CO 2 are formed. The reaction is homogeneous. Its rate is proportional to the pressure of the trioxide and in dependent of the total pressure, the pressure of inert gases and of carbon monoxide: where k = k 1∞ = 10 16.32±0.40 exp(−25,300 ± 500 cal)/ RT sec −1 . Consequently, In the presence of oxygen a sensitized CO 2 formation is observed. A mechanism is given which explains the experimental results.