Study on the Effect of Magesium Ion on the Crystal Phase of Calcium Carbonate

Abstract:

Morphology and crystal phase of calcium carbonate, which formed with the presence of Mg²⁺, were characterized by SEM and XRD. The effect of Mg²⁺ on crystallization and crystal phase of calcium carbonate was studied. The results showed that the crystal phase of calcium carbonate were mainly calcite and aragonite and the content of aragonite was higher after adding Mg²⁺ to the blank solution. With the increase of Mg²⁺ concentration, the content of aragonite increased. The calcium carbonate crystals grain became more fine and the content of aragonite was higher by synergistic treatment between Mg²⁺ and magnetic field. There was a strong inhibitory effect on calcite when the concentration of Mg²⁺ was more than 0.50mmol.L-1. The calcite could be transformed into aragonite in the presence of Mg²⁺ in solution.

• Periodical: Advanced Materials Research (Volumes 554-556)
• Pages: 35-38
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.554-556.35
• Online since: July 2012
• Authors: Zhen Fa Liu, Mei Fang Yan, Li Hui Zhang, Hai Hua Li
• Keywords: Aragonite, Calcite, Calcium Carbonate, Crystal Phase, Magnetic Water

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