单词	oxalic acid
释义	oxalic acid noun ox·​al·​ic acid (ˌ)äk-ˈsa-lik-  : a poisonous strong acid (COOH)2 or H2C2O4 that occurs in various plants (such as spinach) as oxalates and is used especially as a bleaching or cleaning agent and as a chemical intermediate Example Sentences Recent Examples on the Web The fungus infecting chestnut trees thrives by secreting a chemical called oxalic acid, which kills cells and allows the pathogen to feast on the dead tissue. BostonGlobe.com, 30 Aug. 2022 But the approval of the most efficacious methods for application of oxalic acid is tied up in bureaucratic delay. Steven Savage, Forbes, 30 Apr. 2022 To compare this new treatment to oxalic acid, a common chemical used by small-scale beekeepers, the researchers then treated 30 colonies with either the acid or the fungus. Erik Stokstad, Science | AAAS, 4 June 2021 For windows and shower doors, McDermott suggests gently buffing the stains with a rag and an oxalic acid cleanser, such as Bar Keepers Friend ($7.85, Amazon). Washington Post, 10 June 2021 Bees can fall sick or die if concentrations of oxalic acid are too high, and other chemical miticides can cause reproductive problems in the pollinators. Erik Stokstad, Science | AAAS, 4 June 2021 Dissolving them in salt water or ammonium sulfate solutions, and then precipitating them out with oxalic acid or ammonium bicarbonate – inexpensive chemicals – does the trick. Willy Shih, Forbes, 24 Feb. 2021 The stalks are edible but the leaves contain high amounts of oxalic acid and are consequently toxic. Bill St. John, The Denver Post, 13 June 2020 Rhubarb is another excellent copper cleaner, thanks to its oxalic acid content, Dahmen says. Katherine Martinelli, Popular Science, 24 Jan. 2020 See More Word History Etymology French (acide) oxalique, from Latin oxalis First Known Use 1788, in the meaning defined above Medical Definition oxalic acid noun ox·​al·​ic acid (ˌ)äk-ˌsal-ik-  : a poisonous strong acid (COOH)2 or H2C2O4 that occurs in various plants as oxalates and is used especially as a bleaching or cleaning agent and as a chemical intermediate
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