EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC CHEMISTRY > HALOCARBONS AND HALOGENS > CHLORINE MONOXIDE
ClO - a radical species which plays an important role in the breakdown
of stratospheric ozone over Antarctica. Formed by the photolysis of CFCs
in the stratosphere and the subsequent destruction of an ozone molecule,
these radicals can act as a catalyst in the destruction of ozone while not
being destroyed themselves. ClO, reacting with a oxygen atom (present from
the Chapman Mechanism), releases a free chlorine radical once again. As a
result, one Cl atom can destroy thousands of ozone molecules before being
sequestered as HCl or another reservoir species (see chlorine nitrate).
[Earth Island Journal; v 7; page 18; 1992.] [Chronicle of Higher
Education; v 38; pages A6-A7; 1992.]
Atmospheric and Air Chemistry Glossary from the Sam Houston State University.