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Compressor Application Manual
72
2.1 - How is the ozone destroyed?
CFC molecule.
At the 1st stage, ultraviolet
rays breaks
the link
of a chlorine
atom in
the CFC
molecule.
Oxygen molecule
Oxygen molecule
Free oxygen
atom
Figure 48 - Break in the connection
and formation of new
molecules
Figure 49 - CI-O breaking, forming O
2
and free
chlorine, that reacts again.
Free
chlorine
Chlorine atom
VII
Ultraviolet light
Ozone molecule
Figure 46 - CFC molecule Figure 47 - CFC molecule with
separation of chlorine
Chlorine
atom
CFC molecule with chlorine separation.
Next, the chlorine atom attacks the ozone
molecule (O
3
), breaking the link between
the atoms.
A common oxygen (O
2
) and chlorine
monoxide molecule are formed.
Split in the link and formation of new
molecules.
Chlorine monoxide is unstable, has
its link broken and forms free chlorine
again, which will attack and destroy
another ozone molecule, repeating
the process.
CI-O splitting to form O
2
and frees
chlorine to continue reacting.
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