4 ms·
no. PTFE is a member of the class PFAS. polytetrafluoroethylene is a polyfluoroalkyl substance.
by ruined 3y ago
no. PTFE is a member of the class PFAS.
polytetrafluoroethylene is a polyfluoroalkyl substance.
- timr 3y agoPTFE is not a PFAS unless you define PFAS so broadly as to be meaningless. They're common only in that they both contain polyfluorinated carbon chains.
- hcurtiss 3y agoAs it turns out, the definition of PFAS is hotly contested, with those advocating for increased regulation often also advocating for a very broad definition. https://www.bu.edu/sph/news/articles/2022/is-there-a-right-definition-of-pfas/ https://www.bu.edu/sph/news/articles/2022/is-there-a-right-d...
- StableAlkyne 3y agoPolytetrafluoroethylene is a polymer where the individual monomers are fluorinated alkanes. I fail to see how a polymer made entirely of fluorinated alkyl substances is not a polyfluorinated alkyl substance. I'm not really sure how one could argue they're not if we ignore politics and just look at chemical nomenclature
- timr 3y ago> I fail to see how a polymer made entirely of fluorinated alkyl substances is not a polyfluorinated alkyl substance. It is a "polyfluorinated alkyl". The term is so broad as to be meaningless, and PFOA is wildly different, chemically and physically, than PTFE. One is a water-soluble acid. The other is an insoluble substance that is one of the most chemically inert things known to science. It's like labeling something as "fluoride-containing" and panicking because your city water supply has it (which some people do, but I digress).
- dataflow 3y agohttps://chemsec.org/the-teflon-chemical-ptfe-is-often-touted-as-a-safe-cousin-of-toxic-pfas-but-is-it-really/ https://chemsec.org/the-teflon-chemical-ptfe-is-often-touted... "PTFE, or polytetrafluoroethylene, belongs to a subgroup of PFAS called fluorinated polymers"
- giantg2 3y agoThen you should add some sources and correct Wikipedia.