3.
X+O3 XO+O2
XO+O X+O2
O+O3 2O2
Here X = Any specie including Hydroxyl radical,
nitric oxide, chlorine radical or methyl bromide
General Mechanism
6.
CFCl3+light CFCl2(F.R)+Cl(F.R)
CFCl2(F.R) hν CFCl(F.R)+Cl(F.R)
CFCl(F.R) hν CF(F.R)+ Cl(F.R)
Cl(F.R)+O3 ClO(F.R)+O2
ClO(F.R)+O Cl2+O2
O+O3 2O2
1st 3 reactions correspond to generation of Chlorine
radical while the next three to the action in ozone
depletion66
Chlorine radical
generation and action
12.
Aldehyde product of oxidation of hydrocarbons
reacts further as follows:
CH3CHO+OH(F.R) CH3CO(F.R)+H2O
CH3CO(F.R)+O2+M CH3COOO(F.R)
CH3COOO(F.R)+NO(F.R) CH3COOONO2
OH(F.R) in Oxidation of
Hydrocarbons continued