Table 1.

Physical characteristics of solutions used in EHDA process.

Solutions	Density (g/mL)	Electrical Conductivity (µS/cm)	Surface Tension (mN/m)	Viscosity (mPA s)
hHL	1.131 ± 0.001	40.6 ± 0.2	42.70 ± 0.07	634.7 ± 0.5
hHL/0.05RS	1.085 ± 0.005	39.5 ± 0.1	43.40 ± 0.08	658.7 ± 1.2
hHL/0.1RS	1.095 ± 0.001	47.6 ± 0.2	43.60 ± 0.10	609.0 ± 2.6