Modification of calcium carbonate crystals growth by dibenzoic acids

Effects of various dibenzoic acids (phthalic, isophthalic, and terephthalic) on the polymorph and morphology of calcium carbonate (CaCO3) crystals were investigated. Different dibenzoic acids induced the formation of different CaCO3 crystals. Crystallization of vaterite is favored in the presence of phthalic acid. In the presence of isophthalic acid, crystallization of vaterite is favored at 90 °C, crystallization of calcite is favored at 120 and 150 °C. In the presence of terephthalic acid, calcium terephthalate trihydrate is produced at 90 °C, calcite and aragonite are produced at 120 and 150 °C. The mechanism of structural correspondence was applied to explain the results obtained in the present work.