Vapor–Liquid Equilibrium of Three Hydrofluorocarbons with [HMIM][Tf2N]
Citations Over TimeTop 22% of 2015 papers
Abstract
New experimental data for the vapor–liquid equilibrium of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([HMIM][Tf2N]) with difluoromethane (R-32), 1,1-difluoroethane (R-152a), and pentafluoroethane (R-125) were presented. Measurements were performed using an isochoric saturation method at temperatures from (302.3 to 344.1) K and at pressures between (0.03 to 1.22) MPa. The relative expanded uncertainty in solubility measurement is less than 4 %. Within the investigated temperature and pressure range, the order of the solubilities for R-32, R-152a, and R-125 in [HMIM][Tf2N] is R-152a > R-32 > R-125. The experimental results were successfully correlated with the Krichevsky–Kasarnovsky equation. The AAD between the experimental data and calculated values for the solubilities of R-152a, R-32, and R-125 in [HMIM][Tf2N] are 1.4 %, 1.5 %, and 0.8 %, respectively.
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