A shock tube study of DF dissociation

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Abstract
The dissociation rate for DF in argon has been studied with shock tube experiments at temperatures between 3600 and 7200 K. The data were best fitted by the rate coefficient equation k1=2.7×1022 T−2 exp (−137 130/RT) cm3/mol s. A few experiments performed at ∼5000 K indicated that DF dissociates more rapidly in a helium bath than in argon by a factor of 2.9–4.1. A comparison of recombination rate coefficients for several hydrogen halides at 4000 K reveals only small deviations from a value of 1014.4 cm6/mol2 s.