...In redox reactions, redox indicators that change color by donating or receiving electrons are used, while in precipitation titrations, adsorption indicators that adsorb to the precipitate and change color are used. In chelation titrations, metal indicators that change color by binding to metal ions are used. These are usually acid-base indicators themselves. *Some of the terminology explanations that mention "metal indicator" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…酸化還元反応においては,それ自身が電子の授受によって変色する酸化還元指示薬を,沈殿滴定においては沈殿に吸着して変化する吸着指示薬adsorption indicatorを用いる。キレート滴定では,金属イオンと結合することにより変色する金属指示薬metal indicatorが用いられる。これは通常それ自身酸塩基指示薬であることが多い。… ※「metal indicator」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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