Measurements of the solubility of sulfur dioxide (SO2) in the ionic liquids 1-n-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([hmim][Tf2N]) and 1-n-hexyl-3-methylpyridinium bis(trifluoromethylsulfonyl) imide ([hmpy][Tf2N]) at temperatures from 25 to 60 degrees C and pressures up to 4 bar indicate that large amounts (up to 85 mol %) of SO2 dissolve in ionic liquids by simple physical absorption.
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页码:15059 / 15062
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Anthony JL, 2005, J PHYS CHEM B, V109, P6366, DOI [10.1021/jp046404l, 10.1021/jp0464041]