Atmospheric Chemistry of 1,1,1-Trichloroethane: UV Spectra and Self-Reaction Kinetics of CCl3CH2 and CCl3CH2O2 Radicals, Kinetics of the Reactions of the CCl3CH2O2 Radical with NO and NO2, and the Fate of the Alkoxy Radical CCl3CH2O

FTIR study of the Cl- and Br-atom initiated oxidation of trichloroethylene

“…: CCl 9 CHClO ϩ M (6) 3 2 By analogy to the behavior of ethylperoxy radicals [13], the radicals formed in reactions 5 and 6 are expected to react with themselves via a radical channel giving tetrachloroethoxy radicals and via a molecular channel giving chlorinated ethanol (ROH RO 2 and RO represent any peroxy and alkoxy radicals in the system. The absence of a molecular channel is consistent with the behavior of other chlorinated ethylperoxy radicals [23,24]. We detected dichloroacetyl chloride (CHCl 2 C(O)Cl) as the main product, which indicates that the dominant subsequent reaction of CHCl 2 9 CCl 2 O radical is scribed above (Fig.…”

Kinetics of the gas‐phase reactions of chlorine atoms with CH2F2, CH3CCl3, and CF3CFH2 over the temperature range 253–553 K

“…As seen from Fig. 3, the results from the present work are in good agreement with the previous relative rate measurement by Platz et al [7] using the FTIR-smog chamber system at Ford. However, the results from the discharge flow absolute rate study by Talhaoui et al [8] lie about 25% below the present work, whereas those from the relative rate study by Tschuikow-Roux et al [6] Rate constant ratios k 3 /k 2 measured in Copenhagen are given in Table I.…”

“…Measurements of k(Cl + CH 2 F 2 ) at 298 K by Tschuikow-Roux et al [3] and Nielsen et al [4] differ by a factor of 2, and the work by TschuikowRoux et al [3] provides the only information concerning the temperature dependence of the reaction. Measurements of k(Cl + CH 3 CCl 3 ) at 280-418 K by Cillien et al [5], Tschuikow-Roux et al [6], Platz et al [7], and Talhaoui et al [8] span a range of approximately 2. Measurements of k(Cl + CF 3 CFH 2 ) at 298 K by Sawerysyn et al [9], Wallington and Hurley [10], Tuazon et al [11], Louis et al [12], and Kaiser [13] are in excellent agreement; however, only limited data are available at temperatures below ambient.…”

Rate constant for the reaction of F‐atoms with trichloroacetic acid

“…The rate constant of reaction at 295 K is known from the relative rate study of Platz et al, k 2 = (6.8 ± 1.5) × 10 −12 cm 3 molecule −1 s −1 . Since this is the only available k 2 value, let us consider its uncertainty in detail.…”