High-Temperature Fast-Flow Reactor Kinetics Studies of the Reactions of AlO with Cl2 and HCl over Wide Temperature Ranges

Article abstract of DOI:10.1021/j100371a029

The kinetics of the title reactions have been studied in a high-temperature fast-flow reactor (HTFFR).The relative concentrations of AlO were monitored by laser-induced fluorescence at the B²Σ-X²Σ and C²Σ-X²Σ transitions.The following k(T) expressions in cm³ molecule^-1 s^-1 are obtained: AlO + Cl2 (1), k₁(T) = 3.0 * 10^-10 exp(-1250 K/T) between 460 and 1160 K; AlO + HCl (2), k₂(T) = 5.6 * 10^-11 exp(-139 K/T) between 440 and 1590 K.Confidence limits are given in the text.No fluorescence from a potential four-center product AlCl could be detected.From this it is estimated that less than 5percent of the AlO reacted produced AlCl, which indicates that abstraction reactions dominate, i. e., OAlCl + Cl for reaction 1 and OAlCl + H and/or AlOH + Cl for reaction 2.