Ascarite

...It is a strong base whose granules do not easily lose their shape even after long periods of use, and is widely used as an absorbent for carbon dioxide and moisture, as a filler for protective tubes to prevent the intrusion of carbon dioxide and moisture from the outside air, and in organic synthesis. It was used in elemental analysis by filling soda lime tubes to quantify carbon dioxide, but nowadays, ascarite (the trade name for a substance made from sodium hydroxide and asbestos, with a carbon dioxide absorption capacity three to four times that of soda lime) is used, which has a strong absorption capacity. [Masatoshi Fujimoto]...

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…強い塩基で，長時間使用しても粒形が崩れにくく，二酸化炭素および水分の吸収剤，外気中からの二酸化炭素，水分の侵入防止用保護管の充てん(塡)剤，有機合成などに広く用いられる。元素分析の際にソーダライム管に詰めて二酸化炭素の定量用に用いられていたが，現在では吸収能の強いアスカライトAscarite(水酸化ナトリウムと石綿で製造した物質の商品名で，二酸化炭素吸収能はソーダ石灰の3～4倍)が用いられている。【藤本 昌利】。…

※「Ascarite」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