All experiments were conducted under free-drift conditions: neither the solution composition nor pH were controlled. The influence of C P , V P , C S and initial pH of the growthinhibiting solutions on the particles size, morphology, ζ-potential and crystal form were studied. As illustrated in Figure , real-time changes in specific conductance and pH of the suspensions were collected online using a Thermo Scientific Orion 5 Star meter fitted with a conductivity probe and glass pH electrode.