Physicochemical Properties of Binary Mixtures of the Protic Ionic Liquid Bis(2-hydroxyethyl)methylammonium Formate with Methanol, Ethanol, and 1-Propanol

Protic Ionic Liquids: Evolving Structure–Property Relationships and Expanding Applications

“…The molar excess volume depends on competing contributions of the interactions between the cation and the anion of the PIL, interactions between the PIL and the solvent, size differences, and van der Waal interactions. 132 A summary is provided in Table 1 of the PIL−solvent systems reported, and these are classified as either being positive or negative across the entire composition range, or as being asymmetric where they are positive or negative depending on the composition. It should be noted that for many of these systems, the excess molar volume was only about 1−3% of the total molar volume.…”

Physicochemical and Acid-base Properties of a Series of 2-Hydroxyethylammonium-based Protic Ionic Liquids

“…[33][34][35][36][37] In order to clarify solvent natures, one must have extensive knowledge of physicochemical and Brønsted and/or Lewis acid-base properties of ionic liquids. Experimental results for the physicochemical properties [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] and solvatochromic parameters [53][54][55] of ionic liquids with the hydroxyl groups have been reported.…”

Properties for binary mixtures of (acetamide + KSCN) eutectic ionic liquid with ethanol at several temperatures

“…The calculated Dg are shown in figure 2. The viscosity deviations of the mixtures showed complete negative deviations from ideality, and this behavior is habitually observed for pyridinium-based IL 1-butylpyridinium tetrafluoroborate (BPyBF 4 ) [37], quaternary ammonium based IL n-Butylammonium nitrate [33], hydroxyl ammonium based IL Bis(2-hydroxyethyl)methylam monium formate [22], imidazolium-based IL BMImNO 3 [16], 1-ethyl-3-methylimidazolium ethylsulfate (EMImEtSO) 4 [26] and 1-butyl-3-methyl-imidazolium dimethyl-phosphate BMImDMP [29], and pyrrolidinium-based IL PyrrC 7 CO 2 [34]. These behaviors can be justified by the weakening of the interactions in the pure components during the mixing process [37].…”

“…Up to now, the densities for binary mixtures of imidazolium [16,19,[23][24][25][26][27][28][29][30]35], hydroxylammonium [20][21][22], pyridinium [33], quaternary ammonium [34,35], and pyrrolidinium [36] based ILs with ethanol have been explored in the literatures, and the ethanol fraction dependent V E can be classified into 2 groups, namely, complete negative deviation [16,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] and negative-positive mixed type deviation [36,37]. Here, the binary mixture under investigation exhibits negative V E over the entire composition range, the result is similar to the most case in literatures.…”