Potential Designated Chemicals: Perfluoroalkyl and Polyfluoroalkyl Substances (PFASs)
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چکیده
Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a class of fluorinated organic chemicals containing at least one fully fluorinated carbon atom. The C-F bond is one of the strongest known covalent bonds, and the multiple C-F bonds in PFASs impart their chemical and thermal stability. The strength of the C-F bond arises, in part, from the electronegativity of the fluorine atom and from unique characteristics of the fluorine and carbon bonding orbitals (Kissa, 2001).
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