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Influence of lanthanum addition on preparation and powder properties of cobalt phosphates

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Abstract

Transition metal phosphates are used as inorganic pigments; however, these materials had a weak point for acid and base resistance. Because lanthanum phosphate is insoluble in acidic and basic solution, the addition of lanthanum cation was tried to improve the acid and base resistance of cobalt phosphate pigment. The lanthanum doped cobalt phosphates were prepared from phosphoric acid, cobalt nitrate, and lanthanum nitrate solution. The additional effects of lanthanum cation were studied on the chemical composition, particle shape and size distribution, specific surface area, color, acid and base resistance of the precipitates, and their thermal products.

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Authors and Affiliations

  1. Department of Environment and Information Sciences, Faculty of Life and Environmental Sciences, Kyoto Prefectural University, 1-5, Shimogamo Nakaragi-cyo, Sakyo-ku, Kyoto, 606-8522, Japan

    Hiroaki Onoda

  2. Department of Applied Chemistry, Faculty of Science and Engineering, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga, 525-8577, Japan

    Keisuke Tange

  3. Department of Materials Science and Engineering, Faculty of Engineering, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan

    Isao Tanaka

Authors
  1. Hiroaki Onoda
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  2. Keisuke Tange
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  3. Isao Tanaka
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Correspondence to Hiroaki Onoda.

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Onoda, H., Tange, K. & Tanaka, I. Influence of lanthanum addition on preparation and powder properties of cobalt phosphates. J Mater Sci 43, 5483–5488 (2008). https://doi.org/10.1007/s10853-008-2831-7

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  • DOI: https://doi.org/10.1007/s10853-008-2831-7

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