Physiochemical Properties of Hydrodenitrification and Hydrodesulphurization Inhibiting Compounds with 1-Ethyl-3-Methylimidazolium Ethylsulphate at T = (298.15 to 323.15) K and 𝑝=1 Bar

Table 12

Experimental surface tension 𝜎, refractive index 𝑛𝐷 for the binary systems: (a) [emim][EtSO4] + PY, (b) [emim][EtSO4] + PYRR, (c). [emim][EtSO4] + QU, (d) [emim][EtSO4] + INDO, (e) [emim][EtSO4] + TS, and (f) [emim][EtSO4] + Water at 298.15 K.

𝑥IL	[emim][EtSO4] + PY		[emim][EtSO4] + PYRR		[emim][EtSO4] + QU
	σ/mN·m^−1	𝑛𝐷	σ/mN·m^−1	𝑛𝐷	σ/mN·m^−1	𝑛𝐷
0.2	37.2	1.4893	39.3	1.4972	41.2	1.5356
0.3	38.1	1.4867	39.9	1.4904	41.4	1.5318
0.4	39.1	1.4852	40.3	1.4867	42.5	1.5237
0.5	39.6	1.4826	40.6	1.4849	42.9	1.5003
0.6	42.4	1.4808	41.8	1.4845	43.1	1.5000
0.7	46.7	1.4799	41.9	1.4779	43.7	1.4989
0.8	47.1	1.4721	42.6	1.45779	44.5	1.4928
𝑥IL	[emim][EtSO4] + INDO		[emim][EtSO4] + TS		[emim][EtSO4] + WATER
	σ/mN·m^−1	𝑛𝐷	σ/mN·m^−1	𝑛𝐷	σ/mN·m^−1	𝑛𝐷
0.2	41.4	1.5774	31.5	1.4736	52.6	1.4356
0.3	43.1	1.5761	36.4	1.4662	51.5	1.4516
0.4	43.6	1.5584	37.1	1.4624	50.4	1.4524
0.5	44.2	1.5581	45.6	1.4608	49.2	1.4537
0.6	44.5	1.5418	47.2	1.459	47.8	1.4562
0.7	45.2	1.5022	48.4	1.4524	47.8	1.4569
0.8	47.1	1.5006	49.0	1.443	46.2	1.4660