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During 1999, the United States Environmental Protection Agency (EPA) began an investigation into the class of chemicals used in Scotchgard, after receiving information on the global distribution and toxicity of perfluorooctane sulfonate (PFOS), [7] the "key ingredient" [5] of Scotchgard.
PFOS was the key ingredient in Scotchgard, a fabric protector made by 3M, and related stain repellents. The acronym "PFOS" refers to the parent sulfonic acid and to various salts of perfluorooctanesulfonate. These are all colorless or white, water-soluble solids.
Perfluorooctanesulfonamide (PFOSA) is a synthetic organofluorine compound.It is a fluorocarbon derivative and a perfluorinated compound, having an eight-carbon chain and a terminal sulfonamide functional group.
1954 R. A. Dickison, who was employed at DuPont, received an inquiry about C8's "possible toxicity." [10] 1955 A study undertaken by Gordon I. Nordby and J. Murray Luck at Stanford University found that "PFAS binds to proteins in human blood." [21] 1960s DuPont "buried about 200 drums of C8 on the banks of the Ohio River near the plant." [10]
The National Institute of Environmental Health Sciences , Environmental Protection Agency , Food and Drug Administration , and Center for Disease Control's Agency for Toxic Substances and Disease Registry are all conducting ongoing studies to assess the implications of exposure to PFAs on the body and/or awarding grants to universities for the ...
Pentafluorophenol, a perfluorinated compound.. A perfluorinated compound (PFC) or perfluoro compound is an organofluorine compound that lacks C-H bonds. Many perfluorinated compounds have properties that are quite different from their C-H containing analogues.
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Perfluorooctanesulfonyl fluoride (POSF) is a synthetic perfluorinated compound with a sulfonyl fluoride functional group.It is used to make perfluorooctanesulfonic acid (PFOS) and PFOS-based compounds.