Abstract
When a dilute aqueous solution (100 ppm) of pentachlorophenol (PCP) was irradiated with sunlight or UV light, the photodegradation products were found to be chlorinated phenols, tetrachlorodihydroxyl benzenes and non-aromatic fragments such as dichloromaleic acid. Subsequent irradiation of the tetrachlorodiols resulted in the formations of hydroxylated trichlorobenzoquinones, trichlorodiols, dichloromaleic acid and non-aromatic fragments. Dichloromaleic acid, when irradiated, produced chloride ions and carbon dioxide. Prolonged irradiation of PCP or its photodegradation products yielded colorless solutions containing no ether-extractable volatile materials; and evaporation of the aqueous layer left no observable polymeric residue such as humic acid. Octachlorodibenzo-p-dioxin was formed when a high concentration of the sodium salt of PCP was irradiated.
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© 1978 Plenum Press, New York
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Crosby, D.G., Wong, A.S. (1978). Photolysis of Pentachlorophenol in Water. In: Rao, K.R. (eds) Pentachlorophenol. Environmental Science Research, vol 12. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8948-8_3
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DOI: https://doi.org/10.1007/978-1-4615-8948-8_3
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