SCISAT-1

False

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.