Perfluoroalkyl ether sulfonic acid

Last updated August 30, 2025

Perfluoroalkyl ether sulfonic acid refers to compounds with the formula CF₃(CF₂)_mO(CF₂)_nSO₃H. Several are known. These compounds are members of the PFAS class of fluorocarbon-based surfactants. They were invented partly in response to the controversy over the persistence of PFAS.^[1] Some PFESA can be prepared from hexafluoropropylene oxide.^[2]

References

↑ Strynar, Mark; Dagnino, Sonia; McMahen, Rebecca; Liang, Shuang; Lindstrom, Andrew; Andersen, Erik; McMillan, Larry; Thurman, Michael; Ferrer, Imma; Ball, Carol (2015). "Identification of Novel Perfluoroalkyl Ether Carboxylic Acids (PFECAs) and Sulfonic Acids (PFESAs) in Natural Waters Using Accurate Mass Time-of-Flight Mass Spectrometry (TOFMS)". Environmental Science & Technology. 49 (19): 11622–11630. Bibcode:2015EnST...4911622S. doi:10.1021/acs.est.5b01215. PMID 26392038.
↑ Oppenheimer, Jossian; Hsung, Richard P.; Li, Hongyan; Lu, Ting; Wei, Yonggang (2007). "Hexafluoropropene Oxide". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289x.rn00768. ISBN 978-0-471-93623-7.

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[1] Strynar, Mark; Dagnino, Sonia; McMahen, Rebecca; Liang, Shuang; Lindstrom, Andrew; Andersen, Erik; McMillan, Larry; Thurman, Michael; Ferrer, Imma; Ball, Carol (2015). "Identification of Novel Perfluoroalkyl Ether Carboxylic Acids (PFECAs) and Sulfonic Acids (PFESAs) in Natural Waters Using Accurate Mass Time-of-Flight Mass Spectrometry (TOFMS)". Environmental Science & Technology. 49 (19): 11622–11630. Bibcode:2015EnST...4911622S. doi:10.1021/acs.est.5b01215. PMID 26392038.

[2] Oppenheimer, Jossian; Hsung, Richard P.; Li, Hongyan; Lu, Ting; Wei, Yonggang (2007). "Hexafluoropropene Oxide". Encyclopedia of Reagents for Organic Synthesis. doi:10.1002/047084289x.rn00768. ISBN 978-0-471-93623-7.

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