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Common NameHexachlorobenzene
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中文通用名六氯苯
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IUPAChexachlorobenzene
or
perchlorobenzene -
CAShexachlorobenzene
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CAS No.118-74-1
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Molecular FormulaC6Cl6
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Molecular Structure
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Physical PropertiesMolecular weight:284.8g/mol; Physical form:Colourless crystals. Density:2.044 (23℃); Melting point:226℃; Vapour pressure:1.45 mPa (20℃);Solubility: Practically insoluble in water.Soluble in hot benzene, chloroform, carbon disulfide, and diethyl ether. Sparingly soluble in carbon tetrachloride. Practically insoluble in cold alcohols.; Stability:Very stable to acids and alkalis, even at 85℃ and pH 3, 7 and 11 (Agchem. Desk Ref.).
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ToxicologyOral:Acute oral LD50 for rats 10 000 mg/ kg; guinea pigs tolerated doses >3000 mg/ kg. Percutaneous:May cause slight skin irritation.
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Environmental ProfileEcotoxicology:
Bees:Not toxic to bees.Fish: LC50 (96 h) for five freshwater species 0.05-0.2 mg/l.
Environmental fate:
Animals:The principal metabolites in mammals are pentachlorophenol, tetrachlorohydroquinone and pentachlorothiophenol, with lesser amounts of tetrachlorobenzene, pentachlorobenzene, 2,4,5- and 2,4,6- trichlorophenols and 2,3,4,6- and 2,3,5,6- tetrachlorophenols. -
Transport InformationSignal Word:CAUTION; Hazard Class:Ia(Extremely hazardous)
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