Sodium sesquicarbonate

Japanese: sodium sesquicarbonate(英語表記)sodiumsesquicarbonate
Sodium sesquicarbonate

...For household washing soda, the decahydrate is often used because it dissolves quickly in water. Sodium sesquicarbonate (Na 2 CO 3 ・NaHCO 3 ・2H 2 O) is weakly alkaline and is preferred for washing wool and cotton because it does not damage the fibers or cause weathering or deliquescence. For industrial and other uses, a mixture of sodium carbonate and caustic soda may be used to make the washing more alkaline (caustized ash). ...

[Sodium bicarbonate]

...There are two known salts that correspond to this name: monohydrogen carbonate (NaHCO 3) and monohydrogen dicarbonate (Na 2 CO 3 ・NaHCO 3 ・2H 2 O), and when simply saying sodium bicarbonate, it refers to the former. The latter is sometimes called sodium sesquicarbonate (sesqui- is a prefix meaning 11/2) because of its composition Na 3 (CO 3 )(HCO 3 )・2H 2 O (the molar ratio of Na to CO 3 is 3:2).
[Sodium bicarbonate]
The chemical formula is NaHCO3 .…

*Some of the terminology that mentions "sodium sesquicarbonate" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…家庭用洗濯ソーダには,速やかに水に溶けるという点で10水和物が多く用いられている。セスキ炭酸ナトリウムsodium sesquicarbonate Na2CO3・NaHCO3・2H2Oはアルカリ性が弱く,繊維を傷めない,風化や潮解しないなどの理由から,羊毛,木綿の洗濯用に好んで用いられる。工業用などでアルカリ性を強くした洗濯用には炭酸ナトリウムと苛性ソーダを混合使用する場合もある(苛性化灰caustized ash)。…

【炭酸水素ナトリウム】より

…この名称に相当する塩には一水素塩NaHCO3と二炭酸一水素塩Na2CO3・NaHCO3・2H2Oとが知られており,単に炭酸水素ナトリウムというときは前者をさす。後者はその組成Na3(CO3)(HCO3)・2H2O(NaとCO3のモル比3:2)からセスキ炭酸ナトリウムsodium sesquicarbonate(sesqui‐は11/2を表す接頭語)と俗称されることもある。
[炭酸水素ナトリウム]
 化学式NaHCO3。…

※「sodium sesquicarbonate」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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