Correlation of CaCO_3 induction times measured by an electrochemical technique

摘要

Induction time data in CaCO_3 precipitation were determined by an electrochemical technique. The alkaline environment surrounding the cathode surface promotes CaCO_3 precipitation. The data were measured using simulated sea water solutions without the interfering presence of magnesium ions. The effect of current intensity on induction time was successfully correlated by a modified form of the classical nucleation equation. Data indicating the inception of precipitation by the first detectable decrease in solution concentration were also successfully correlated with a model based on population balance crystallization theory.