Volumetric properties of 1-butyl-3-methylimidazolium bromide in aqueous solutions of d(−)-ribose and d(−)-arabinose at different temperatures

Volumetric properties of ionic liquids, 1-Ethyl-3-ethylimidazolium chloride [Emim][Cl] and 1-Ethyl-3-methylimidazolium hydrogen sulfate [Emim][HSO4] in sucrose aqueous solutions at T = (293.15–313.15) K and ambient pressure

“…Table 2 shows that S v values for both ionic liquids are positive for all concentrations of sucrose and all temperatures. This means that ion-ion interactions are dominant to ion-solvent interactions in these solutions [9,15]. As can be seen from Table 2 and Fig.…”

“…In other work [13] the (sucrose þ 3-HPAAc þ water) system is studied and the same result is pointed out; that is the sucrose acts as a structure maker. Finally in other work [15] the sign of ðv 2 V 0 4 =vT 2 Þ P is positive for ribose in aqueous solutions of [Bmim][Br] which means that ribose acts as a structure maker while this quantity is negative for arabinose so that it behaves as a structure breaker.…”

“…As can be seen from 15 1.8 * Standard uncertainties u are u(P) ¼ 5 kPa, u(T) ¼ 0.03 K, (0.68 level of confidence), and combined expanded uncertainties U c is U c (E 0 f ) ¼ (0.0005e0.06) cm 3 $mol À1 $K À1 , (0.95 level of confidence).…”

“…Structure maker or breaker ability of IL or saccharides in the some ternary (IL þ saccharides þ H 2 O) systems are reported in the references [12,13,15]. The sign of ðv 2 V 0 4 =vT 2 Þ P for these systems are considered.…”

“…Thermophysical data such as density, excess volumes and apparent molar volumes are needed for these ABS systems since serving to understanding the nature of interactions in these systems. Recently Singh et al [12,13] studied volumetric properties and taste behavior of (sucrose þ water þ protic ionic liquid) at T ¼ (293.15e318.15) K. Also Hui and Han [14] reported volumetric properties of ternary system (IL þ sucrose þ water) at T ¼ 298.15 K. In another work, Singh et al [15] reported volumetric properties of [Bmim] [Br] in aqueous solutions of ribose and arabinose at different temperatures. Shekaari et al [16] studied thermodynamic properties of Dglucose in aqueous 1-hexyl-3-methylimidazolium bromide solutions at 298.15 K. Also Singh et al [17] …”