单词	potassium nitrate
释义	potassium nitrate noun : a crystalline salt KNO3 that occurs as a product of nitrification in arable soils, is a strong oxidizer, and is used especially in making gunpowder, as a fertilizer, and in medicine Example Sentences Recent Examples on the Web The GLO Science formula includes hydrogen peroxide to whiten the teeth and remove stains, while potassium nitrate prevents sensitivity. ELLE, 14 May 2022 Use toothpaste and mouth rinse with hydroxyapatite or fluoride; potassium nitrate is also good for sensitivity and found in pastes like Sensodyne. Adam Hurly, Robb Report, 10 Dec. 2021 But the sulfur and potassium nitrate used in the 14th and 15th centuries would have been more contaminated. Eric Niiler, Wired, 29 Sep. 2021 For ages, the main ingredients of gunpowder have consisted of sulfur, carbon and potassium nitrate, commonly known as saltpeter. The New York Times, Arkansas Online, 10 Oct. 2021 Gunpowder makers in the 14th and 15th centuries used black powder brought to Europe from China, then mixed its three ingredients together one by one: saltpeter (also known as potassium nitrate), charcoal, and sulfur. Eric Niiler, Wired, 29 Sep. 2021 Stumps of larger vines can be killed by drilling holes and filling with molasses or saltpeter (potassium nitrate). Howard Garrett, Dallas News, 16 Aug. 2021 Homemade smoke bombs are usually made with gunpowder or potassium nitrate, an ingredient in fertilizer. BostonGlobe.com, 17 Apr. 2021 Homemade smoke bombs are usually made with gunpowder or potassium nitrate, an ingredient in fertilizer. New York Times, 17 Apr. 2021 See More Word History First Known Use 1866, in the meaning defined above Medical Definition potassium nitrate noun : a crystalline salt KNO3 that is a strong oxidizing agent and is used in medicine chiefly as a diuretic called also niter, saltpeter
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