pH of Toluene in [Bmim][BF4] and [Bmim][PF6] Ionic Liquids

Ai Ling Ren; Dan Dan Zhang; Er Hong Duan; Bin Guo; Jian Zhong Chen

doi:10.4028/www.scientific.net/AMR.393-395.1328

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395pH of Toluene in [Bmim][BF4] and [Bmim][PF6] Ionic...

pH of Toluene in [Bmim][BF₄] and [Bmim][PF₆] Ionic Liquids

Abstract:

The pH value of binary mixtures containing toluene and 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) ionic liquids over the range of ionic liquids mole fraction (xIL) from (1.0 to 0.60) and temperature range from (293.15 to 340.65) K were measured. The range of the pH values of toluene and [Bmim][BF4] and [Bmim][PF6] were from (3.16 to 4.63) and (5.57 to 7.55), respectively. Comparison showed that the pH of toluene in the two ionic liquids was in sequence: [Bmim][BF4] < [Bmim][PF6]. The temperature dependency of the pH value was correlated using an empirical equation. The correlations gave satisfactory results.

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Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

1328-1333

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.1328

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Online since:

November 2011

Authors:

Ai Ling Ren, Dan Dan Zhang, Er Hong Duan, Bin Guo, Jian Zhong Chen

Keywords:

[Bmim][BF₄], [Bmim][BF₆], Ionic Liquid (IL), pH, Toluene

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