Klemm, R.B., Skolnik, E.G., Michael, J.B. (1980)
Absolute Rate Parameters for the Reaction of O(3P) with H2CO over the Temperature Range 250 to 750 K
J. Chem. Phys. 1980, 72, 1256.
Abstract
Absolute rate constants for the reaction of ground state oxygen atoms with
formaldehyde were determined over the temperature range 298 to 748 K using the
discharge flow-resonance fluorescence technique. The results were combined with
rate data from a flash photolysis-resonance fluorescence study (250 to 498 K) of
this reaction to obtain an Arrhenius expression that is linear from 250 to 748 K:
k(15)=(2.94±0.26)E-11 exp(-3065±67/RT) cm3/molecule s. This result is
compared with those of previous studies and possible kinetic complications are
discussed in terms of a detailed mechanism. The significance of an extrapolation
of this determination of k(15) to higher and lower temperatures is also
discussed.
REACTION RATE COEFFICIENTS SUGGESTED IN THIS WORK:
GRI-Mech
Number
('-' sign
means
reverse) |
Reaction |
Rate Coefficient
A T^n exp(-E/RT) |
Temperature
Range
(K) |
A
(mol,cm3,s) |
n
(T in K) |
E
(cal/mol) |
| 15 |
O + CH2O -> OH + HCO |
1.77E+13 |
|
3065 |
250-750 |