@article{oai:twcu.repo.nii.ac.jp:00023502,
 author = {渥美, みはる and 佐藤, 真理},
 issue = {3},
 journal = {Science reports of Tokyo Woman's Christian University},
 month = {Mar},
 note = {本報では物質の色を利用した化学実験について報告する.具体的なテーマは以下の通りである.1 ソルバトクロミズム 金属錯体を用いて溶媒の極性を調べた.金属錯体には Ni[tmen acac]ClO4 と Cu[tmen acac]ClO4を使用した.これらの錯体を種々の有機溶媒に溶かし,その色の違いによって有機溶媒の極性を簡単に調べることができた.2 植物色素と水溶液のpH アントシアン色素を植物から抽出して,pH指示薬としての性質を調べた.また,緩衝溶液に酸性およびアルカリ性水溶液を少しずつ添加しpH変化の様子をその色によって観察した.緩衝溶液に少量の酸性およびアルカリ性水溶液を加えてもpHはほとんど変化しないことを確認した., This report describes following chemical experiments by using synthetic and natural color indicators; 1. Solvatochromism The polarity of organic solvents was checked by the metal complex, Ni[tmen acac]ClO4 and Cu[tmen acac]ClO4 as the color indicator. The metal complex was dissolved in organic solvents, and the color of the solutions followed the donor ability of the solvents. 2. Plant pigments as pH indicators Anthocyanin pigments were extracted from red cabbage and various flowers. Aqueous solution of the pigment showed color change with different pH of the solution. Property of buffer solution, that resists pH change when acids and bases were added to it, was observed by using these pigments as pH indicator. These experiments are useful for students to understand polarity of organic solvents and property of buffer solution.},
 pages = {1961--1975},
 title = {実験で学ぶ化学Ⅴ. 色で測る},
 volume = {63},
 year = {2013}
}