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Perfluorohexanoic acid (
PFHxA) is a
fluorinated carboxylic acid
derivative of
hexanoic acid.
Fluorinated polymers with six
carbon or less
commonly degrade...
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water limit of 0.09 μg/L for the sum of 11 PF**** (PFBS,
PFHxS, PFOS, 6:2 FTSA, PFBA, PFPeA,
PFHxA, PFHpA, PFOA, PFNA and PFDA). If PF**** are
found above...
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previously unregulated PFAS compounds,
limiting PFNA to six ppt,
PFHxA to 400,000 ppt,
PFHxS to 51 ppt, PFBS to 420 ppt and HFPO-DA to 370 ppt. The change...
- for 5
previously unregulated PFAS
compounds – PFNA at 6 ppt,
PFHxA at 400,000 ppt,
PFHxS at 51 ppt, PFBS at 420 ppt, and HFPO-DA at 370 ppt. The p****age...
- polymers:
hydrolysis yields fluorotelomer alcohols that are then
degraded to
PFCAs of
different chain lengths (in the
shown example PFHxA,
PFHpA and PFBA)....
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Perfluoropentanesulfonic acid PFPS C5F11SO3H 350.11 2706-91-4
Perfluorohexanesulfonic acid
PFHxS C6F13SO3H 400.12 355-46-4
Perfluoroheptanesulfonic acid
PFHpS C7F15SO3H...
- PFOS and
adding MCLs for 5
previously unregulated PFAS
compounds PFNA,
PFHxA,
PFHxS, PFBS, and HFPO-DA. In 2020, a
California bill was p****ed
banning PFOS...
- acid, its
salts and
perfluorooctane sulfonyl chloride. POPRC-15
proposed PFHxS for
listing in
Annex A
without specific exemptions. Currently, chlorpyrifos...
- PFOS and
adding MCLs for 5
previously unregulated PFAS
compounds PFNA,
PFHxA,
PFHxS, PFBS, and HFPO-DA. In 2007, the
Minnesota Department of
Health lowered...
-
drinking water standards for six PFAS: PFOA PFOS
perfluorohexanesulfonic acid (
PFHxS) PFNA
hexafluoropropylene oxide dimer acid (also
known as GenX) perfluorobutanesulfonic...
