Calcite phase determination of CaCO₃ nanoparticles synthesized by one step drying method Available to Purchase

Calcium Carbonate (CaCO₃) is a type of carbonic salt. It exist naturally as white odourless solid and may also be synthesized by chemical reactions. This work studies one-step precipitation of CaCO₃ that was prepared by novel method of one-step precipitation method. The method was then proceeded by different types of drying. The first type is by normal drying in oven whereas the second type is with the presence of hydrothermal influence. From the results, precipitated CaCO₃ dried by normal drying method produces CaCO₃ with two polymorphs present; calcite and vaterite. Normal drying at 500°C has no vaterite phase left. Drying by hydrothermal precipitated CaCO₃ has Nitrogen (N) left on the surfaces of the precipitated CaCO₃. This work successfully identified calcite phase in the precipitated CaCO₃.