ü       Chlorine is used in many branches of industry, science and social needs :

ü       In the production of polyvinyl chloride , PVC , synthetic rubber (including fabricated insulation for wires, window profile , packaging materials , clothing and footwear , linoleum and shellac , varnish, equipment and foams , toys, equipment parts , construction materials)
 Production of organochlorine insecticides - substances that kill insects harmful to crops , but safe for plants.

ü       For a plant protection agents spent much of the chlorine produced . One of the most important insecticides - hexachlorocyclohexane (often called hexachlorane ) . Was used as a chemical warfare agent , as well as for the production of other chemical warfare agents : mustard gas , phosgene
 To disinfect water - " chlorination "

ü        The most common method of disinfecting drinking water, based on the ability of free chlorine and its compounds inhibit the enzyme systems of microorganisms catalyze the oxidation- reduction processes . For the disinfection of drinking water is used : chlorine , chlorine dioxide , chloramines and chlorinated lime . Limits (corridor) allowable concentration of free residual chlorine in the drinking water of centralized water supply 0.3 - 0.5 mg / l

ü        In the chemical production of hydrochloric acid , bleach , potassium chlorate , chloride, metals , poisons , medicines , fertilizers , pesticides , chlorides of many elements , such as titanium chloride TiCl4 and phosphorus trichloride PCl3 metallurgy production of pure metals, titanium , tin , tantalum , niobium,

ü       In As an indicator of solar neutrinos in the chlorine -argon detectors