ABSTRACT
Understanding of interfacial electrochemistry of minerals in solutions is necessary to follow phenomena such as adsorption, deposition, as well as scaling. The interfacial properties of simple oxides in suspensions have been studied in detail, but those of complex sparingly soluble minerals such as calcite and silicates are yet to be understood well enough. Although the solubility and electrokinetic behavior of calcite has been studied to some extent [1-7], it is difcult to evaluate their interfacial processes especially under dynamic extreme conditions. It is further complicated by the fact that the surface potential of calcite remains positive under most conditions unless other chemicals or alkali is added. In this chapter, we review the electrochemical properties of calcite under various conditions and complexation and interfacial precipitation processes that are relevant to scaling phenomena.
