sodium carbonate

noun

🔊/ˌsəʊdiəm ˈkɑːbənət/

🔊/ˌsəʊdiəm ˈkɑːrbənət/

(also washing soda)

[uncountable]

(symbol Na2CO3)

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a chemical in the form of white crystals or powder that dissolves in water and is used in making glass, soap and paper, and for making water soft碳酸钠