Figure 2

Graphical Abstract: At a given supersaturation state, the conventional affinity-based rate law predicts a rate that is independent of the ion ratio (green horizontal line). However, the ion activity ratio influences the instantaneous rate, changes in the rate over time, and the nature of precipitation kinetics at extreme ion ratios. The observed curvature (a) for the titrant volume vs. time plots for different ion activity ratio conditions. Each point represents the average curvature for replicate experiments at a given ion ratio. The inset shows examples of individual titrant volume vs. time curves.