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Chlorine: Difference between revisions
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==Properties== | ==Properties== | ||
Chlorine is usually found combined in nature because of its reactivity. It is ready to use commercially by passing electricity through a water solution of sodium chloride or through molten sodium chloride. Chlorine gases are made up of diatomic molecules, as the formula | Chlorine is usually found combined in nature because of its reactivity. It is ready to use commercially by passing electricity through a water solution of sodium chloride or through molten sodium chloride. Chlorine gases are made up of diatomic molecules, as the formula C-12. The gas can be smelled in the air at a 3 parts per million(ppm), and it is irritating to the nose, mouth, and lungs. Thus, it cause throat irritation at 15 ppm, coughing at 30 ppm, and cause deadly effect after a few deep breaths at 1,000 ppm. | ||
Chlorine gas is easy to liquefy in water, and occur chemical reaction, that produce hydrochloric acid (HCl) and hypochlorous acid (HOCl), plus some unreacted | Chlorine gas is easy to liquefy in water, and occur chemical reaction, that produce hydrochloric acid (HCl) and hypochlorous acid (HOCl), plus some unreacted C-12. That is called chlorine water and it is killing [[germs]] in water or to [[bleach]] papers and fabrics. | ||
Chlorinated hydrocarbons have had some of their hydrogen atoms replaced by chlorine atoms. A variety of chlorinated hydrocarbons have been used as [[insecticides]]. One of the earliest to be used was DDT, dichlorodiphenyl-trichloroethane. However, it caused serious environmental problems, it is not use as much as before in the [[United States]]. | Chlorinated hydrocarbons have had some of their hydrogen atoms replaced by chlorine atoms. A variety of chlorinated hydrocarbons have been used as [[insecticides]]. One of the earliest to be used was DDT, dichlorodiphenyl-trichloroethane. However, it caused serious environmental problems, it is not use as much as before in the [[United States]]. | ||
Other chlorinated hydrocarbons are used as pesticides in the farms, but all of these compounds are very stable so they are becoming a serious problem. | Other chlorinated hydrocarbons are used as pesticides in the farms, but all of these compounds are very stable so they are becoming a serious problem. | ||
