ABSOLUTE RATE PARAMETERS FOR THE REACTIONS OF FORMALDEHYDE WITH O-ATOMS AND H-ATOMS OVER THE TEMPERATURE-RANGE 250-500-K

Absolute rate coefficients for the reaction of H atoms and O atoms with formaldehyde were determined over the temperature range of 250 to 500 K. Linear Arrhenius behavior was observed in log(ki) vs 1/T plots for both reactions and the following rate parameters were obtained: k1(T) = (3.27±1.61)×10-11 exp (-3670±365/RT) cm 3 molec-1 s-1, k2(T) = (2.78±0.32)×10-11 exp (-3030±80/RT) cm 3 molec-1 s-1. Indicated error limits are two standard deviations. These results are compared with those of previous studies and are further discussed in terms of extrapolation to higher temperatures. © 1979 American Institute of Physics.