Figure 4 | Scientific Reports

Figure 4

From: Combinatorial discovery of small-molecule 1,2,3-triazolium ionic liquids exhibiting lower critical solution temperature phase transition

Figure 4

Temperature-dependent phase transitions of binary mixtures (2:1, w/w) of water with [Bu-Pent-C2OH-tr][OTMBS] (b8), [Bu-i-Hex-C2OH-tr][OTMBS] (b26), and [Bu-Hex-C2OH-tr][OTMBS] (b9), respectively. The coomassie brilliant blue R-250 (0.006 wt% in water) was added to accentuate the phase separation. Only [Bu-i-Hex-C2OH-tr][OTMBS] (b26) ionic liquid shows phase transition (Tc = 17 °C), whereas [Bu-Pent-C2OH-tr][OTMBS] (b8) and [Bu-Hex-C2OH-tr][OTMBS] (b9) are totally miscible and immiscible, respectively, with water at temperatures between 2 °C and 90 °C.

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