Liquid-Liquid Equilibrium Data for the Ionic Liquid N-Ethyl-Pyridinium Bromide with Several Sodium Salts and Potassium Salts

Table 1

Ti1e-line data for the [EPy]Br (1) + salt (2) + water (3) ATPS at 𝑇= 298.15 K.

System	Total system		IL-rich phase		Salt-rich phase		TLL	𝑆
	100𝑤2	100𝑤1	100𝑤2	100𝑤1	100𝑤2	100𝑤1
[Epy]Br + Na2HPO4	30.98	20.46	1.75	59.45	45.09	1.63	72.26	−1.33
	20.29	30.19	2.74	53.24	41.17	2.77	63.44	−1.31
	10.09	41.67	3.16	51.07	37.73	4.17	58.05	−1.36
[Epy]Br + K2HPO4	3.00	44.00	0.42	60.27	3.90	38.33	22.21	−6.32
	4.44	38.00	0.20	64.80	4.74	36.11	29.05	−6.31
	1.77	50.00	0.65	57.07	3.32	40.23	17.05	−6.30
[Epy]Br + K2SO4	6.15	17.00	0.24	67.93	6.45	14.45	53.84	−8.62
	4.83	24.00	0.42	62.20	5.36	19.42	43.06	−8.66
	3.63	30.00	0.79	54.37	4.11	25.86	28.70	−8.57
[EPy]Br + C4O6H4KNa	9.77	62.95	0.30	81.03	31.62	21.24	67.50	−1.91
	6.99	57.11	1.80	67.59	19.21	32.48	39.19	−2.02
	8.32	62.16	0.52	77.83	26.59	25.45	58.51	−2.01