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

Table 11

Parameters of (10) for the [EPy]Br (1) + salt (2) + water (3) ATPS at 𝑇 = 298.15 K.

System	𝑓	𝑔	R ^2	100𝑤1	100𝑤2	sd
[EPy]Br + Na2HPO4	56.8201	−1.8603	0.8777	23.77	15.06	39.64
[EPy]Br + K2HPO4	54.9576	−4.2020	0.9644	46.67	1.89	0.84
[EPy]Br + K2SO4	49.0957	−5.4588	0.9904	40.03	1.94	0.62
[EPy]Br + C4O6H4KNa	69.0866	−2.1286	0.9203	47.75	8.15	14.64

asd = (∑^𝑁_𝑖=1(𝑤^cal_𝑖−𝑤_𝑖^exp)²/𝑁)^0.5. Where 𝑤_𝑖^exp is the experimental mass fraction of IL and 𝑤^cal_𝑖 is the corresponding data calculated using (10). The term “N” represents the number of solubility data.