SCISAT-1

Fact Sheet 1

Classification of Solar uv (Ultraviolet) Light
Ultraviolet Wavelength in nanometres (nm) Primarily absorbed by... Overall reaction
uv-A 400-320 oxygen molecule photodissociation of oxygen molecules whose atoms react to produce ozone
uv-B 320-280 ozone molecule photodissociation of ozone molecules whose atoms react to produce molecular oxygen
uv-C 280-200 ozone molecule photodissociation of oxygen molecules whose atoms react to produce molecular oxygen
Ozone Destroying Compounds
Common name Compound Active Element Applications
CFCs (chlorofluo-rocarbons)
Freon-11
CFCl3 Cl
chlorine
refrigeration and aerosol sprays
CFCs (chlorofluo-rocarbons)
Freon-12
CF22Cl2 Cl
chlorine
refrigeration and aerosol sprays
CFCs (chlorofluo-rocarbons)
Freon-113
C2F3Cl3 Cl
chlorine
refrigeration and aerosol sprays
CFCs (chlorofluo-rocarbons)
Freon114
C2F4Cl2 Cl
chlorine
refrigeration and aerosol sprays
halons CF3Br, CF2BrCl,
C2F4Br2
Cl and Br
chlorine and bromine
fire extinguishers
methylchloroform 1,1,1-TCE
(trichloroethane)
Cl 
chlorine
cleaning solvent, widely used as an industrial solvent.
carbon tetrachloride CCl4 Cl
chlorine
fire extinguishers, cleaning solvent, widely used as an industrial solvent for lacquers, varnishes and various organic compounds.