Washing soda - Sentakusoda (English spelling)

Japanese: 洗濯ソーダ - せんたくそーだ(英語表記)washing soda
Washing soda - Sentakusoda (English spelling)

It is also called crystalline soda or salt. It is usually sodium carbonate decahydrate ( Na2CO310H2O ), but it can also contain monohydrate or a double salt with sodium bicarbonate ( sesquicarbonate ) ( Na2CO3NaHCO32H2O ). It dissolves more easily in water than the anhydrous fine powder, i.e. soda ash, and is used for cleaning cotton and wool, as well as washing animal fibers.

[Torii Yasuo]

[Reference] | Sodium carbonate

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

結晶ソーダ、ザルソウなどともいう。通常、炭酸ナトリウム十水和物Na2CO3・10H2Oをさすが、一水和物や、炭酸水素ナトリウムとの複塩であるセスキ炭酸塩Na2CO3・NaHCO3・2H2Oなどを含めることもある。無水和物の微細粉末、すなわちソーダ灰より水に溶けやすく、綿布、羊毛などの洗浄や、動物性繊維の洗濯に用いられる。

[鳥居泰男]

[参照項目] | 炭酸ナトリウム

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