dichlorobenzene

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dichlorobenzene

[dahy-klawr-uh-ben-zeen, -ben-zeen, -klohr-]
noun Chemistry.
any of three isomers consisting of benzene in which two of the hydrogen atoms are replaced by chlorine atoms: ortho-, meta-, and paradichlorobenzene.

Origin:
di-1 + chloro-2 + benzene

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
Encyclopedia

dichlorobenzene

any of three isomeric organohalogen compounds known as 1,2-, 1,3-, or 1,4-dichlorobenzene (also called ortho-, meta-, and para-dichlorobenzene, respectively). Both 1,2- and 1,3-dichlorobenzene are liquids. 1,2-Dichlorobenzene is used as a solvent, as an insecticide, and in the manufacture of other chemicals, particularly dyestuff intermediates. 1,4-Dichlorobenzene is a crystalline, volatile solid with a strong camphorlike odour and is widely used as a moth repellent. All three compounds are colourless, denser than water, and insoluble in water.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Dichlorobenzene, whether or not known skin contact has occurred.
Usually the commercial type mothballs are made of either naphthalene or para dichlorobenzene.
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