Journal of Materials Science

, Volume 41, Issue 14, pp 4663–4667 | Cite as

Influence of initial CaCl2 concentration on the phase and morphology of CaCO3 prepared by carbonation

  • Yong Sheng HanEmail author
  • Gunawan Hadiko
  • Masayoshi Fuji
  • Minoru Takahashi


Calcium carbonate particles were prepared by bubbling the mixed gas CO2/N2 into CaCl2 solution. The effect of initial CaCl2 concentration on the morphology and phase of CaCO3 was discussed with the help of XRD and SEM measurements. The samples prepared at low CaCl2 concentration composed mainly of spherical vaterite. With the increase of CaCl2 concentration, more and more rhombic particles were formed and mixed with spherical particles. When the initial CaCl2 concentration increased to 0.3 mol/L, only rhombic calcite was formed in the final product. The change of CaCO3 morphology with the increase of CaCl2 concentration was attributed to the excess of Ca2+, which speeded the transformation of vaterite to calcite, thus more rhombic calcite was formed at higher CaCl2 concentration.


Calcite Calcium Carbonate Aragonite Reactant Concentration Vaterite 



This study has been supported by a grant from the NITECH 21st Century COE Program “World Ceramics Center for Environmental Harmony”, and by the Ministry of Education, Science, Sports and Culture, Grant-in-Aid for Scientific Research (B), 15310052, 2003, Japan.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Yong Sheng Han
    • 1
    Email author
  • Gunawan Hadiko
    • 1
  • Masayoshi Fuji
    • 1
  • Minoru Takahashi
    • 1
  1. 1.Ceramics Research LaboratoryNagoya Institute of TechnologyAsahigaokaJapan

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