toxaphene
a dense, yellowish, semisolid mixture of organic compounds made by chlorination of camphene (a hydrocarbon obtained from turpentine) and used as an insecticide. Toxaphene, which contains 67-69 percent chlorine, is insoluble in water but highly soluble in several organic solvents; under the influence of light, heat, or strong alkalies, it decomposes, forming hydrogen chloride and losing its toxicity to insects.
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