Chromatographic evidence for the formation of chlorodioxins from chloro-2-Phenoxyphenol (cas 2417-10-9)s

Add time:07/14/2019    Source:sciencedirect.com

The photochemical and thermochemical decompositions of a trichloro- and a pentachloro-2-phenoxyphenol have been studied. The photolysis of the pentachloro-2-phenoxyphenol, which is one of the impurities found in commercial 2,4,6-trichlorophenol, gave 1,2,3,8-tetrachlorodioxin, two trichlorodioxins, a dichlorodioxin and a dichlorodibenzofuran. The pyrolysis of the phenoxyphenols yielded a dichloro- and a tetrachloro-dioxin, respectively, as the only detectable products. Consequently, we believe that the level of chloro-2-phenoxyphenols in commercial chlorophenol formulations should be minimized.

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