To test if a higher concentration of sorbent can achieve more complete mercury binding in the presence of sodium chloride, 9 times the mass of sorbent was used in an identical sorption experiment. The kinetic model was used to predict that this amount of sorbent would provide sufficient binding sites to overcome the competing processes with NaCl. The qualitative concept here was that solely by a mass action effect, adding more sorbent would speed up both the desired mercury sorption and the undesired competing reaction. However, due to the relative rates of these reactions, 𝑘 ! /𝑘 " , the sorption reaction is now able to proceed further before a steady state is achieved. Accordingly, 4.5 g poly(S-r-limonene) coated silica was mixed with 100 mL 5 ppm Hg 2+ containing 599 mM NaCl for 5 minutes with regular sampling. Within the first 10 seconds the sorbent removed 83% of the mercury present-a greatly improved initial uptake than observed in the original experiment with 9-times less sorbent. Over 5 minutes, 91% of the mercury was removed (Fig ). This experiment shows that additional sorbent can overcome the detrimental effect of sodium chloride on mercury binding performance as predicted from the kinetic model.