HTFFR KINETICS STUDIES OF THE AL-SO2 REACTION FROM 700 TO 1600 K IMPLICATIONS FOR D(AL-O)

Measurements of the kinetics of the bimolecular Al/SO2 reaction over the temperature range 700 to 1600 K have yielded a k(T)=(1.6±0.8) ×10-10 exp[(=2000±300)/T]cm3molecule -1 s-1. This k(T is significantly larger than that for the Al/CO2 reaction in the same temperature range. This temperature dependence indicates with 95% probability that the Al-O dissociation energy ≥126 kcal mol-1, somewhat higher than most often thought. AlO laser fluorescence has been used to identify AlO+SO as a major, and probably the only, product channel. A k of 2×10-12 cm3 molecule-1s-1 is measured for the AlO/SO2 reaction near 940 K. © 1979 American Institute of Physics.