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Pentachlorophenol (PCP) is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names. [ 5 ] It can be found as pure PCP, or as the sodium salt of PCP, the latter of which dissolves easily in water.
Chemical structure of 2-chlorophenol. A chlorophenol is any organochloride of phenol that contains one or more covalently bonded chlorine atoms. There are five basic types of chlorophenols (mono- to pentachlorophenol) and 19 different chlorophenols in total when positional isomerism is taken into account.
The plant operated from 1902 until 1981, when the company filed for bankruptcy. Before 1950, creosote was the primary wood preservative chemical, and after 1950 pentachlorophenol (PCP) became the preferred chemical. Prior to 1970, operators discharged liquid process wastes into two onsite, unlined, percolation ponds which were allowed to ...
Many organochlorine compounds have been isolated from natural sources ranging from bacteria to humans. [3] [4] Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids.
Compounds involved include the wood preservative pentachlorophenol, and also herbicides such as 2,4-dichlorophenoxyacetic acid (or 2,4-D) and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T). Higher levels of chlorination require higher reaction temperatures and greater dioxin production.
Pentachlorobenzene (PeCB) is an aryl chloride and a five-substituted chlorobenzene with the molecular formula C 6 HCl 5 which is a chlorinated aromatic hydrocarbon.It consists of a benzene ring substituted with five chlorine atoms.
A tetrachlorophenol is any organochloride of phenol that contains four covalently bonded chlorine atoms. Tetrachlorophenols are produced by electrophilic halogenation of phenol with chlorine. [1]
Pentafluorophenol is the organofluorine compound (specifically a fluoroalcohol) with the formula C 6 F 5 OH. This is the perfluorinated analogue of phenol. It is a white solid that melts just above room temperature, and smells of phenol. With a pK a of 5.5, it is one of the most acidic phenols.