…Because these colors are nearly complementary to each other, they turn light gray at the equivalence point, and the color change is extremely sensitive and can be distinguished with an accuracy of about ±0.2 pH. Such a mixed indicator is called a screened indicator. In the strict sense, a mixed indicator is a mixture of indicators that have similar color change ranges and exhibit colors that are complementary to each other at a certain pH. … *Some of the terminology explanations that mention "mixed indicator" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは互いに補色に近いので,当量点では薄灰色となりきわめて鋭敏に変色を知り,±0.2pH程度の精度で判別することができる。このような混合指示薬mixed indicatorを遮へい(蔽)指示薬screened indicatorという。狭義の混合指示薬は変色域が似かよっていて,かつあるpHでは互いに補色の関係にあるような色を呈する指示薬を混合したものである。… ※「mixed 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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