单词	sodium carbonate
释义	sodium carbonate noun : a sodium salt of carbonic acid used especially in making soaps and chemicals, in water softening, in cleaning and bleaching, and in photography: such as a : a hygroscopic crystalline anhydrous strongly alkaline salt Na2CO3 b : the transparent crystalline hydrate Na2CO3·10H2O found in nature as natron Example Sentences Recent Examples on the Web The laundry stripping recipe involves adding borax, washing soda (sodium carbonate — not baking soda) and laundry detergent in a 1:1:2 ratio. Amanda Garrity, Good Housekeeping, 15 Apr. 2022 Researchers believe the bright spots are highly reflective sodium carbonate crusts, which were left behind when salty liquid emerged on the surface and evaporated. Kate S. Petersen, USA TODAY, 22 Apr. 2022 The process itself is rather lengthy: Towels and sheets sit in a tub of hot water, borax, washing soda (sodium carbonate) and laundry detergent until the water has cooled completely, about four to five hours in total. Amanda Garrity, Good Housekeeping, 15 Apr. 2022 Sachs says to fill a bathtub with hot water and add a quarter-cup of borax, a quarter-cup of washing soda (a.k.a. sodium carbonate) and a half-cup of detergent. Washington Post, 27 Sep. 2021 Drinking glasses may be much simpler to make—requiring not much more than sand and sodium carbonate plus some relatively basic machinery—but China is not about to stop there. The Economist, 7 Nov. 2020 Upon reaching the surface, the water rapidly boiled away in the near-vacuum conditions, leaving behind the sodium carbonate and other salts. Scott Hershberger, Scientific American, 12 Aug. 2020 The process itself is rather lengthy: Towels and sheets sit in a tub of hot water, borax, washing soda (sodium carbonate), and laundry detergent until the water has cooled completely, about four to five hours in total. Amanda Garrity, Good Housekeeping, 19 Aug. 2020 In the last phase of the mission, which ended in 2018, Dawn’s orbit swept within 35 kilometers (22 miles) of Occator Crater, a 92-kilometer-wide feature dotted with bright deposits of sodium carbonate and other minerals. Scott Hershberger, Scientific American, 12 Aug. 2020 See More Word History First Known Use 1868, in the meaning defined above Medical Definition sodium carbonate noun : a sodium salt of carbonic acid used especially in making soaps and chemicals, in water softening, in cleaning and bleaching, and in photography: as a : a hygroscopic crystalline anhydrous strongly alkaline salt Na2CO3 b : washing soda
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