Table 4. Physical Properties of the Used Batch (0.5 M Solution of Na₂SO₄) at 20 °C.

physical quantity	value
ρ [kg m–3]	1054
μ [mPa s]	1.22
σ [mN m–1]	74.1
DO2 [10–9 m2 s–1]	1.87
DN2 [10–9 m2 s–1]	1.66