Observations of solid-liquid systems in anchor agitated vessels

► Solid-liquid (S-L) mixing in agitated vessels using anchor agitator. ► Calculation of 'Zwietering Constant (S)' for 0.5 and 5 l. ► Validation of the experimental results. ► Comparison of 'S' for different solid-liquid systems. ► Qualitative explanation for the data obtained.