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Chlorine
//ˈklɔɹin// noun
Definitions
Noun
- 1 A toxic, green, gaseous chemical element (symbol Cl) with an atomic number of 17. uncountable, usually
"When TCCA touches a small amount of water and doesn’t dissolve, “it can experience a chemical reaction, generating heat and causing the decomposition of the chemical, which in turn produces toxic chlorine gas and can produce explosive nitrogen trichloride,” a 2023 report by the CSB said."
- 2 a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water) wordnet
- 3 A single atom of this element. countable, usually
- 4 A chlorine-based bleach or disinfectant. countable, usually
"The mechanism involved in the explosive reaction between swimming pool chlorine (calcium hypochlorite) and brake fluid (polyethylene glycol), a possible improvised explosive mixture, has been studied by means of the gaseous products produced."
Etymology
Coined by British chemist Humphry Davy in 1810 from Ancient Greek χλωρός (khlōrós, “pale green”) + -ine.
See also for "chlorine"
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