单词	sulfonic acid
释义	sulfonic acid noun : any of numerous acids that contain the SO3H group and may be derived from sulfuric acid by replacement of a hydroxyl group by either an inorganic anion or a monovalent organic group Example Sentences Recent Examples on the Web For two of the chemicals, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS), the new advisories update ones issued back in 2016. John Timmer, Ars Technica, 15 June 2022 Two other chemicals, perfluorobutane sulfonic acid (PFBS) and hexafluoropropylene oxide (HFPO) have been introduced as partial replacements for the ones listed above. John Timmer, Ars Technica, 15 June 2022 One of these, called PFOS, or perfluorooctane sulfonic acid — found at airports and military sites with histories of fire foam use — tends to build up in fish. Shantal Riley, Washington Post, 12 Jan. 2022 The spray’s formula, which includes hydrogen peroxide, citric acid, and alkylbenzene sulfonic acid, also meets the EPA’s criteria for use against SARS-CoV-2, the virus that causes COVID-19. Christina Butan, PEOPLE.com, 16 Sep. 2020 Perfluorooctanoic acid, or PFOA, and perfluorooctane sulfonic acid, or PFOS, have been used in products ranging from carpets and nonstick pans to industrial processes and fire control. Lee Bergquist, Milwaukee Journal Sentinel, 19 Mar. 2018 Word History First Known Use 1873, in the meaning defined above Medical Definition sulfonic acid noun : any of numerous acids that contain the SO3H group and may be derived from sulfuric acid by replacement of a hydroxyl group by either an inorganic anion or a monovalent organic group
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