Phase Behaviour of 1-Ethyl-3-methylimidazolium Thiocyanate Ionic Liquid with Catalytic Deactivated Compounds and Water at Several Temperatures: Experiments and Theoretical Predictions

Table 5

Experimental surface tension σ and deviation of surface tension for the binary systems: (a) [EMIM][SCN] + Pyridine, (b) [EMIM][SCN] + Pyrrole, (c) [EMIM][SCN] + Indoline, (d) [EMIM][SCN] + Quinoline, (e) [EMIM][SCN] + Thiophene, and (f) [EMIM][SCN] + Water at 298.15 K.

𝑥IL	[EMIM][SCN] + PY		[EMIM][SCN] + PYRR		[EMIM][SCN] + QU
	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)
0.2	37.4	−1.22	40.9	−1.08	29.5	−16.32
0.3	38.6	−0.58	41	−1.12	32.3	−13.18
0.4	38.7	−1.04	42.5	0.24	35.2	−9.94
0.5	41	0.7	42.8	0.4	39.4	−5.4
0.6	42.4	1.54	44	1.46	40.1	−4.36
0.7	45.4	3.98	46.5	3.82	40.4	−3.72
0.8	46.5	4.52	47.4	4.58	40.8	−2.98
𝑥IL	[EMIM][SCN] + INDO		[EMIM][SCN] + TS		[EMIM][SCN] + Water
	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)	𝜎 (mN⋅m^−1)	Δ𝜎 (mN⋅m^−1)
0.2	39.9	5.2	30.8	−3.18	44.6	−20.1
0.3	40.8	5.05	31.8	−3.32	45.1	−16.9
0.4	40.9	4.1	32.1	−4.16	46.2	−13.1
0.5	41.9	4.05	33.6	−3.8	46.8	−9.8
0.6	42.4	3.5	34.1	−4.44	50.2	−3.7
0.7	43.9	3.95	38.4	−1.28	50.4	−0.8
0.8	44	3	45.5	4.68	50.4	1.9