• teflon coating on frying pans

    From Jerry Salinsky@21:1/5 to All on Mon May 11 14:32:49 2020
    Perfluorooctanoic acid (PFOA) is commonly used as the teflon coating on
    frying pans. I vaguely remember reading an article that says before
    PFOA, it had been perfluorobutanoic acid that was used as the teflon
    coating on frying pans. It was later found that perfluorobutanoic acid
    widely existed in people's blood stream. Thus, it was replaced by PFOA,
    which is not as easy to enter people's blood stream.

    I cannot find any reference about this. Is this just my imagination? Can someone confirm it?

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  • From Libor Striz@21:1/5 to Jerry Salinsky on Mon May 11 13:13:45 2020
    Jerry Salinsky <ouasami@do-not-send.com> Wrote in message:
    Perfluorooctanoic acid (PFOA) is commonly used as the teflon coating on frying pans. ...

    As or for ?

    As I can imagine it as auxiliary compound for teflon adhesion,
    but not as the coating itself.


    --
    Poutnik ( the Wanderer )

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  • From Jerry Salinsky@21:1/5 to Libor Striz on Tue May 12 12:03:58 2020
    On 5/11/2020 5:43 PM, Libor Striz wrote:
    Jerry Salinsky <ouasami@do-not-send.com> Wrote in message:
    Perfluorooctanoic acid (PFOA) is commonly used as the teflon coating on frying pans. ...

    As or for ?

    As I can imagine it as auxiliary compound for teflon adhesion,
    but not as the coating itself.


    OK. Maybe my misconception. But had perfluorobutonoic acid ever been
    used before PFOA?

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  • From Libor Striz@21:1/5 to Jerry Salinsky on Tue May 12 08:00:17 2020
    Jerry Salinsky <ouasami@do-not-send.com> Wrote in message:

    OK. Maybe my misconception. But had perfluorobutonoic acid ever been used before PFOA?

    Probably yes, according to https://en.wikipedia.org/wiki/Perfluoro octanoic_acid

    What I have understood from brief reading,
    it was used rather during PTFE production than at PTFE application
    on cookware.
    --
    Poutnik ( the Wanderer )

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  • From balboatennis@gmail.com@21:1/5 to Jerry Salinsky on Sat May 16 11:15:24 2020
    On Monday, May 11, 2020 at 2:02:53 AM UTC-6, Jerry Salinsky wrote:
    Perfluorooctanoic acid (PFOA) is commonly used as the teflon coating on frying pans. I vaguely remember reading an article that says before
    PFOA, it had been perfluorobutanoic acid that was used as the teflon
    coating on frying pans. It was later found that perfluorobutanoic acid
    widely existed in people's blood stream. Thus, it was replaced by PFOA,
    which is not as easy to enter people's blood stream.

    I cannot find any reference about this. Is this just my imagination? Can someone confirm it?

    https://www.youtube.com/watch?v=-v4NvQqVrF0

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