…When calcium carbonate is added to this solution and stirred, the carbonate ions produced by its dissolution react with the hydrogen ions produced by the dissociation of carbonic acid to form bicarbonate ions, and the pH rises again. This regulation of pH by the dissociation and dissolution reaction of carbonate substances is called a buffer effect. Through this series of reactions, a certain relationship exists between the partial pressure of carbon dioxide in the atmosphere and the pH of seawater. … *Some of the terminology explanations that mention "buffering effect (seawater)" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この溶液に炭酸カルシウムを入れてかきまぜると,その溶解によって生じた炭酸イオンが炭酸の解離で生じた水素イオンと反応して重炭酸イオンを形成し,pHはふたたび上昇する。このように炭酸物質の解離・溶解反応によってpHが規制されることを緩衝作用という。この一連の反応を通して,大気の二酸化炭素分圧と海水のpHの間に一定の関係が存在する。… ※「緩衝作用(海水)」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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