The updated Serinyel et al. [1] mechanism was chosen as the
base chemistry to simulate the consumption of OH radicals by 2-
butanone. This base mechanism with the developed sub-chemistry
for 3-buten-2-one was utilized for 3-buten-2-one. Since TBHP is
used here as a source for OH, its decomposition chemistry has to
be included in the base mechanism. The chemistry of TBHP and
its subsequent radicals (OH, acetone (CH3COCH3), methyl (CH3),
and tert-butoxy ((CH3)3CO) is already well-known and validated
in previous studies [30,34]. The TBHP chemistry is described as
follows: