...The end point of a titration can also be determined by measuring the temperature change of the titration solution due to the heat of reaction. The temperature change of the titration solution suddenly stops when the reaction is complete, so this is measured using a highly sensitive resistance thermometer that uses a thermistor, and is called thermometric titration. In a broader sense, thermal analysis can also include methods of clarifying the properties of a substance by measuring changes in physical properties such as the volume change, electrical resistance, magnetic susceptibility, and mechanical properties of a substance due to heating or cooling. *Some of the terminology that mentions "thermometric titration" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…また,滴定に際して反応熱による滴定溶液の温度変化を測定して滴定の終点を求めることもできる。滴定溶液の温度変化は反応が完了した時点で急になくなるので,これをサーミスターを用いた高感度の抵抗温度計などによって測定する方法で,温度滴定あるいは熱滴定thermometric titrationと呼ばれる。さらに広義には,加熱または冷却による物質の体積変化,電気抵抗や帯磁率の変化,力学的性質の変化などの物理的性質の変化を測定してその物質の性質を解明する方法をも熱分析に含めることもある。… ※「thermometric titration」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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