random motion

1
photo dissociation of chlorofluorocarbon
random motion
chlorine free radical lets loose
Collision of chlorine free radical and ozone
Chlorine oxide radical collides with ozone
molecule
Chlorine radical is free to attack again
2
O3
O3
O3
O3
O3
O3
O3
O3
menu
3
Photon
unpaired electron
Cl
-C
highly reactive free radicals formed
menu
4
O3
O3
O3
O3
menu
5
O3
Collision results in formation of chlorine oxide
menu
6
ClO
OO
Chlorine oxide radical is left to run amok
menu
7
O3
O3
O3
ClO
O3
O3
O3
O3
Chlorine oxide radical collides with ozone
molecules
O3
menu
8
O3
9
OO
menu
click to start cycle again
10
Initiation
Cl.

RCH2.
RCH2Cl
Propagation
O2
ClO.
Cl.

O3
O2
ClO.
Cl.