Viscosity of Dimethylbenzene in [Bmim][BF4] and [Bmim][PF6] Ionic Liquids

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The viscosity of dimethylbenzene and imidazole ionic liquids (1-butyl-3-methylimidazolium tetrafluoroborate [Bmi [BF4] and 1-butyl-3-methylimidazolium hexafluorophosphate [Bmi [PF6]) was measured. Within the temperature range from 298.15 K to 308.15 K, the viscosity of the four binary systems decreased sharply as the raise of temperature. The viscosity values decrease slowly in the temperature range from 308.15 K to 338.15 K. The viscosity of dimethylbenzene in the ionic liquids was in sequence: [Bmi [BF4] < [Bmi [PF6]. The experimental viscosity values had been correlated using the binary parameters of Vogel-Fulcher-Tamman equation.Keywords: viscosity, dimethylbenzene, [Bmi [BF4], [Bmi [PF6]

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78-82

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March 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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