tetrachlorobenzene


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tetrachlorobenzene

[¦te·trə¦klȯr·ə′ben‚zēn]
(organic chemistry)
C6H2Cl4 Water-insoluble, combustible white crystals that appear in two forms: 1,2,3,4-tetrachlorobenzene which melts at 47°C and is used in chemical synthesis and in dielectric fluids; and 1,2,4,5-tetrachlorobenzene which melts at 138°C and is used to make herbicides, defoliants, and electrical insulation.