Abstract

The preparation of different morphological basic magnesium carbonate particles with hollow rod-like, hull of peanut and leaf from the pyrogenation of magnesium carbonate trihydrate were described. The morphology, crystal phase and purity of basic magnesium carbonate were characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction (XRD) and inductively coupled plasma atomic emission spectrometer (ICP-AES). The results indicated that the formation of three morphological basic magnesium carbonates were obtained via platelike particles of magnesium carbonate trihydrate under certain conditions where the temperature and stirring rate were properly controlled. The length of the hollow rod means up to 6~7µm, and its diameter means up to 1~2µm.

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