2016年5月
A pH Scale for the Protic Ionic Liquid Ethylammonium Nitrate
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
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- 巻
- 55
- 号
- 21
- 開始ページ
- 6266
- 終了ページ
- 6269
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/anie.201511328
- 出版者・発行元
- WILEY-V C H VERLAG GMBH
To quantify the properties of protic ionic liquids (PILs) as acid-base reaction media, potentiometric titrations were carried out in a neat PIL, ethylammonium nitrate (EAN). A linear relationship was found between the 14 pK(a) values of 12 compounds in EAN and in water. In other words, the pK(a) value in EAN was found to be roughly one unit greater than that in water regardless of the charge and hydrophobicity of the compounds. It is possible that this could be explained by the stronger acidity of HNO3 in EAN than that of H3O+ in water and not by the difference in the solvation state of the ions. The pH value in EAN ranges from -1 to 9 on the pH scale based on the pH value in water.
- リンク情報
- ID情報
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- DOI : 10.1002/anie.201511328
- ISSN : 1433-7851
- eISSN : 1521-3773
- Web of Science ID : WOS:000377918400024