7 , the reaction temperatures of nitric acid ionic liquid homologs [C n mim][NO 3 ]( n = 2, 3, 6) all increased from 25 °C to 80 °C, respectively, and the desulphurization rates of thiophene model oils showed an increasing trend.
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Studies on nitrate acid based imidazolium ionic liquids: synthesis and application in electrochemical desulfurization of oil.
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As the temperature increased, the viscosity of ionic liquid showed a decreasing trend.