Nonequilibrium Acidic Fluctuations in Room-temperature Ionic Liquid/Water Mixture: N,N-Diethyl-N-methyl-N-(2-methoxyethyl)ammonium Tetrafluoroborate

被引：7

作者：

Aono, Masami ^{[1
]}

Tomita, Yukitaka ^{[1
]}

Abe, Hiroshi ^{[1
]}

Yoshimura, Yukihiro ^{[2
]}

机构：

[1] Natl Def Acad, Dept Mat Sci & Engn, Yokosuka, Kanagawa 2398686, Japan

[2] Natl Def Acad, Dept Appl Chem, Yokosuka, Kanagawa 2398686, Japan

来源：

CHEMISTRY LETTERS | 2012年 / 41卷 / 11期

关键词：

LIQUIDS;

D O I：

10.1246/cl.2012.1532

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Room-temperature ionic liquid (RTIL)/water mixtures show acidic properties at around 90 mol % H2O. The RTIL is N,N-diethyl-N-methyl-N-(2-methoxyethyl)ammonium tetrafluoroborate. The pH of the mixture in the nonequilibrium state is sensitive to the quality of the water type: city water (CW), distilled water (DIS), or ultrapure water (UP). At 90 mol % [H2O](DIS), rhythmic oscillations of pH are observed. The time periodicity is found to be approximately 20 mm. In contrast, 90 mol % [H2O](CW) and [H2O](UP) mixtures show no synchronization in the pH.

引用

页码：1532 / 1534

页数：3

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