High Yield of Vaterite Precipitation Induced by Trace Lanthanum Ion from a Supersaturated Solution of Calcium Carbonate at 50 °C

DOI DOI PDF 2 Citations 12 References
  • Tsuno Hiroshi
    Department of Environmental Natural Resource Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST)
  • Kagi Hiroyuki
    Laboratory for Earthquake Chemistry, Graduate School of Science, The University of Tokyo
  • Akagi Tasuku
    Department of Environmental Natural Resource Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology

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Description

The formation of calcium carbonate from a supersaturated solution doped with trace lanthanum was studied at various temperatures. At a temperature of around 50 °C, more than 80% of calcium carbonate precipitated from 5 μmol kg−1 LaCl3, 15 mmol kg−1 CaCl2-NaHCO3 solution was vaterite while from a lanthanum-free solution calcium carbonate precipitated exclusively as calcite.

Journal

  • Chemistry Letters

    Chemistry Letters 31 (10), 960-961, 2002

    The Chemical Society of Japan

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