Phase equilibria and thermophysical properties of aqueous solutions of two bis(fluorosulfonyl)imide-based ionic liquids

Phase Equilibria, Thermodynamic Behavior, and Transport Properties of Aqueous Solutions of [BMPYR] Trifluoromethanesulfonate and [BMPYR] Tricyanomethanide

“…The objective function we used in this case was as follows where a w I , a w II and a IL I , a IL II are the calculated activities of water and the IL at the experimental compositions of the coexisting liquid phases I and II, respectively, and n VLE and n LLE are the numbers of experimental vapor–liquid or liquid–liquid data. The objective function (eq ) has been described in detail in our previous work where it was conveniently employed for thermodynamic modeling of the (water + FSI-based IL) systems exhibiting limited miscibility. Its convenience lies in that it greatly simplifies the computation because minimization of the differences between the calculated activities at the experimental compositions of coexisting phases (instead of the differences between the experimental and calculated phase compositions) avoids iterative calculations of LLE at each point .…”

“…In the dynamic method, the cloud point temperature was determined using the same apparatus and an analogous procedure as for the determination of the freezing temperature outlined above. Further details of both methods have previously been given …”

“…To measure electrical conductivity κ, a TetraCon 325 graphite electrode connected to a 740 control unit by inoLab was used . The sample was stirred in a hermetically closed thermostated glass cell whose temperature was controlled to ±0.02 K by the C6-CP Lauda thermostat.…”

“…In recent years, we have been systematically investigating the thermodynamic behavior and thermophysical properties of aqueous solutions of ILs comprising 1-ethyl-3-methylimidazolium (EMIM) or 1-butyl-1-methylpyrrolidinium (BMPYR) cations. − The present study dealing with binary mixtures of water with two additional BMPYR ILs, triflate (OTF), and tricyanomethanide (TCM) is a follow-up of this series. In the literature, both of these ILs have been shown to be efficient as extractive agents for the separation of organic compounds from their aqueous solutions − and, especially, as promising electrolyte components for electrochemical devices. , Pyrrolidinium-based ILs, in general, and BMPYR ones, in particular, offer superior versatility when compared to other ILs such as imidazolium .…”

The experimental study of dehumidification and regeneration processes in a fin and tube liquid desiccant system

“…K −1 Spesific Heat C p , kJ.kg −1 . K −1 Present work 0–80 25 997–1154 0.001–0.032 0.607–0.274 1.7–4.2 [HEA]La [ 25 ], ∼99 25 1201.785 – 0.255 1.8 [BHEA]La [ 25 ], ∼99 25 1218.433 – 0.236 1.78 [THEA]La [ 25 ], ∼99 25 1235.933 – 0.226 1.75 [EMIm]Ac [ 26 ] 80 20 1100.82 0.022 0.27 2.35 [EMIM][FSI] [ 27 ] ∼99 15 1451.11 0.026 – – [BMPYR][FSI] [ 27 ] ∼99 15 1314.74 0.078 – – [MPEG 550 (bim)][Tf 2 N] [ 28 ] 70 25 1285.4 0.28 …”