酸さん性せい白はく土ど

noun

acid clay; Japanese acid clay

A naturally occurring clay with acidic properties, used in industry as an adsorbent, catalyst, or decolorizing agent. The term often refers specifically to a type found in Japan.

• 酸さん性せい白はく土どは油あぶらの精せい製せいに使つかわれる。