perfluorooctanesulfonic acid
noun
per·fluo·ro·oc·tane·sul·fon·ic acid
pər-ˌflȯr-ō-ˈäk-ˌtān-ˌsəl-ˈfä-nik- 
-ˌflu̇r-,
-ˈfō-
variants
or perfluorooctane sulfonic acid
: a fluorinated sulfonic acid C8HF17O3S that is a member of the PFAS group and that has been used especially for its water and stain resistance (as in carpeting and food packaging) and as a surfactant (as in firefighting foam and alkaline cleaning products) : PFOS
Perfluorooctanesulfonic acid is a key ingredient in stain-resistant fabrics, including carpets and upholstery.—
Gary Feldman
Gary FeldmanPerfluorooctane sulfonic acid (PFOS) is a widely used chemical with applications as a wetting and foaming agent and as a precursor of surfactants and pesticides.—Philippe Tony Hoff
Philippe Tony HoffTwo of the most widely used PFAS compounds, perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), have been banned but persist in the environment …—Frank Kummer
Frank Kummercalled also perfluorooctane sulfonate
Examples of perfluorooctanesulfonic acid in a Sentence
Recent Examples on the Web
Just before Trump left the White House in 2021, his EPA determined on January 19 that perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) need to be regulated in drinking water under the Safe Drinking Water Act.
—Thomas G. Moukawsher, Newsweek, 6 Nov. 2024
The new rule announced on Friday empowers the government to force the many companies that manufacture or use perfluorooctanoic acid, also known as PFOA, and perfluorooctanesulfonic acid, known as PFOS, to monitor any releases into the environment and be responsible for cleaning them up.
—Coral Davenport, New York Times, 19 Apr. 2024
The participants in Lindhardt’s study had high levels of perfluorooctanesulfonic acid (PFOS) in their blood due to eating meat from cattle that fed in grassy areas where firefighters tested PFAS-containing foam.
—Claire Bugos, Verywell Health, 25 Mar. 2024
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Thomas G. Moukawsher, Newsweek, 6 Nov. 2024
The new rule announced on Friday empowers the government to force the many companies that manufacture or use perfluorooctanoic acid, also known as PFOA, and perfluorooctanesulfonic acid, known as PFOS, to monitor any releases into the environment and be responsible for cleaning them up.
—Coral Davenport, New York Times, 19 Apr. 2024
The participants in Lindhardt’s study had high levels of perfluorooctanesulfonic acid (PFOS) in their blood due to eating meat from cattle that fed in grassy areas where firefighters tested PFAS-containing foam.
—Claire Bugos, Verywell Health, 25 Mar. 2024
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“Perfluorooctanesulfonic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perfluorooctanesulfonic%20acid. Accessed 28 Nov. 2024.
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