Caustic ash - Caustic ash

Japanese: 苛性化灰 - かせいかばい
Caustic ash - Caustic ash

...Sodium sesquicarbonate (Na 2 CO 3 ・NaHCO 3 ・2H 2 O) is a weak alkali, does not damage fibers, and does not weather or deliquesce, so it is often used for washing wool and cotton. For industrial and other uses, a mixture of sodium carbonate and caustic soda may be used to make the washing more alkaline (causticized ash). Sodium sesquicarbonate and caustic ash are also called modified soda. ...

*Some of the terminology explanations that mention "caustic ash" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…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)。セスキ炭酸ナトリウムおよび苛性化灰は変成ソーダmodified sodaとも呼ばれる。…

※「苛性化灰」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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