A negatively charged ion.
A positively charged ion.
A polyfluoroalkyl substance produced by the telomerization process.
The part of a molecule that is a charged functional group attached at one end of the carbon chain tail.
Chemicals with the same chemical formula, but different molecular structures.
Subset of PFAS. Have carbon chain atoms that are totally fluorinated. Examples are perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) (Buck et al. 2011).
Fully fluorinated alkane (carbon-chain) molecule. They have a chain (tail) of two or more carbons atoms with a charged functional group (head) attached at one end.
Subset of PFAS. Have at least one carbon chain atom that is not totally fluorinated (Buck et al. 2011).
The molecule has a non-fluorine atom (typically hydrogen or oxygen) attached to at least one, but not all, carbon atoms, while at least two or more of the remaining carbon atoms in the carbon chain tail are fully fluorinated.
Large molecules formed by combining many identical smaller molecules.
The part of a molecule that is a chain of two or more carbon atoms.