Extraction of S- and N-Compounds from the Mixture of Hydrocarbons by Ionic Liquids as Selective Solvents

Table 3

Physical properties of model solutions and ionic liquids.

	𝜌, kg m^−3	𝜂, Pa s	𝜎, mN m^−1	𝜎 1-2, mN m^−1
				Model 1	Model 2
Model 1	720	4.56⋅10^−4	21.3
Model 2	741	1.47⋅10^−3	24.9
[C2mim][EtSO4]	1236	0.0896	49.3	10.6	12.3
[C5mim][Tf2N]	1404	0.0525	32.6	3.2	5.6
[C6mmPy][Tf2N]	1332	0.1152	34.7	3.8	9.7
[bzmim][Tf2N]	1491	0.1508	41.5	6.0	6.2
[C7mmim][Tf2N]	1226	0.1048	46.9	10.5	12.1
[C10mmim][Tf2N]	1269	0.1472	33.3	3.4	5.8