Mercury dissolving

Japanese: 解汞 - かいこう
Mercury dissolving

...An industrial method for producing sodium hydroxide (NaOH) and chlorine (Cl2 ) by electrolyzing salt water. There are three methods: the diaphragm method, the mercury method, and the ion exchange membrane method.
[Diaphragm method]
The electrolytic cell is divided into two compartments by an asbestos diaphragm. In one compartment, a DSE anode (an electrode with an electrode catalyst such as ruthenium oxide (IV) RuO2 on the surface of a titanium Ti plate, also known as a dimensionally stable electrode) is placed, and an iron mesh cathode is placed in the other compartment. The purified salt water is supplied to the anode compartment and flows through the diaphragm to the cathode compartment. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…食塩水を電気分解して水酸化ナトリウムNaOHと塩素Cl2を製造する工業的方法。隔膜法,水銀法,イオン交換膜法の三つの方法がある。
[隔膜法]
 アスベスト隔膜を用いて仕切った2室からなる電解槽の1室にDSE陽極(チタンTi板の表面に酸化ルテニウム(IV)RuO2などの電極触媒を付けた電極。寸法安定電極dimentionally stable electrodeともいう)を置き,他室に鉄網陰極を設ける。精製した食塩水は陽極室に供給し,隔膜を通って陰極室に流れるようになっている。…

※「解汞」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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