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Chlorine: Difference between revisions
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'''Chlorine''' is one of the elements that has the atomic number 17, and the symbol Cl. There is plenty of chlorine in nature. When chlorine is in the form of gas, its color becomes greenish yellow, and the weight increases as heavy as half of air. Chlorine gas has suffocating odor and very poisonous to every living thing. It is perhaps best know for its powerful disinfecting activity.[http://en.wikipedia.org/wiki/ | '''Chlorine''' is one of the elements that has the atomic number 17, and the symbol Cl. There is plenty of chlorine in nature. When chlorine is in the form of gas, its color becomes greenish yellow, and the weight increases as heavy as half of air. Chlorine gas has suffocating odor and very poisonous to every living thing. It is perhaps best know for its powerful disinfecting activity.[http://en.wikipedia.org/wiki/Chlorine] | ||
==Properties== | ==Properties== | ||
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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. | 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.[http://science.jrank.org/pages/1438/Chlorine-Properties-uses-chlorine.html] | ||
[http://science.jrank.org/pages/1438/Chlorine-Properties-uses-chlorine.html] | |||
==Occurrences== | ==Occurrences== | ||
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== Related References == | == Related References == | ||
* [http://en.wikipedia.org/wiki/ Chlorine Chlorine] Wikipedia | * [http://en.wikipedia.org/wiki/Chlorine Chlorine] Wikipedia | ||
* [http://periodic.lanl.gov/elements/17.html/ chlorine] Chlorine | * [http://periodic.lanl.gov/elements/17.html/ chlorine] Chlorine | ||
* [http://www.bt.cdc.gov/agent/chlorine/basics/facts.asp/ chlorine] CDC | * [http://www.bt.cdc.gov/agent/chlorine/basics/facts.asp/ chlorine] CDC | ||
