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Perfluorooctanesulfonic acid (PFOS) (conjugate base perfluorooctanesulfonate) is a chemical compound having an eight-carbon fluorocarbon chain and a sulfonic acid functional group, and thus it is a perfluorosulfonic acid and a perfluoroalkyl substance (PFAS).
6:2-fluorotelomersulfonic acid (6:2-FTS) is a chemical compound that belongs to the group of fluorotelomersulfonic acids within the broader class of per- and polyfluorinated alkyl compounds (PFAS). Due to its structural similarity to perfluorooctanesulfonic acid (PFOS), it is also called H 4 PFOS.
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The half-life of PFHxS in adult blood serum is 5.3 years (4.7 years for women and 7.4 years for men). [10] The half-life of PFASs in human blood generally decreases with decreasing backbone (CF 2) length. However, PFHxS is an unusual exception in that its half-life is greater than both longer and shorter chain equivalents such as PFOS or PFBS.
C 6 F 12 O 2: 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propionyl fluoride Precursor to GenX Hexafluoropropylene oxide dimer acid (HFPO-DA) C 6 HF 11 O 3: FRD-903, 2,3,3,3-tetrafluoro-2-(heptafluoropropoxy)propanoic acid Chemical used in the GenX process. GenX hydrolyzes in the presence of water to form HFPO-DA. [124] Perfluorobutanesulfonic ...
C 4 F 9 SO 2 NH 2: 299.12 30334-69-1 Perfluoropentanesulfonamide: PFPSA C 5 F 11 SO 2 NH 2: 349.12 82765-76-2 Perfluorohexanesulfonamide: PFHxSA C 6 F 13 SO 2 NH 2: 399.13 41997-13-1 Perfluoroheptanesulfonamide: PFHpSA C 7 F 15 SO 2 NH 2: 449.14 82765-77-3 Perfluorooctanesulfonamide: PFOSA C 8 F 17 SO 2 NH 2: 499.14 754-91-6 ...
Perfluorobutanesulfonic acid (PFBS) is a PFAS chemical compound having a four-carbon fluorocarbon chain and a sulfonic acid functional group. It is stable and unreactive because of the strength of carbon–fluorine bonds .
Perfluoropropanesulfonic acid (PFPrS) is a PFAS chemical compound having a three-carbon fluorocarbon chain and a sulfonic acid functional group. It has been used within the manufacturing process of aqueous film forming foam (AFFF). [2]