When basic magnesium Carbonate is formed from water suspension of MgCO3·3H2O under various oondition, the concentration of Mg in mother solution changes as shown in Fig. 1-5. These processes can be explained on the view of ionic reaction. The difference of the crystal size of product and the concentration of HCO3' in mother solution derived from differnt condition of the formation, can be unedrstood urith this process.
