Share This Article:

Synthesis, Acid and Base Resistance of Various Copper Phosphate Pigments by the Substitution with Lanthanum

Abstract Full-Text HTML Download Download as PDF (Size:968KB) PP. 209-214
DOI: 10.4236/msa.2011.23026    5,020 Downloads   9,599 Views   Citations


Transition metal phosphates are used as inorganic pigments, however these materials have a weak point for acid or base resistance. Because lanthanum phosphate is insoluble in acidic or basic solution, the addition of lanthanum was tried to improve the acid or base resistance of copper phosphate pigment. Various cooper – lanthanum phosphates were synthesized in wet (H3PO4, Cu(NO3)2, La(NO3)3) or dry (H3PO4, CuCO3●Cu(OH)2●H2O, La2O3) processes. The additional effects of lanthanum 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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

O. Hiroaki and O. Kenichi, "Synthesis, Acid and Base Resistance of Various Copper Phosphate Pigments by the Substitution with Lanthanum," Materials Sciences and Applications, Vol. 2 No. 3, 2011, pp. 209-214. doi: 10.4236/msa.2011.23026.


[1] H. Onoda, H. Nariai, A. Moriwaki, H. Maki and I. Motooka, “Formation and Catalytic Characterization of Various Rare Earth Phosphates,” Journal of Materials Chemistry, Vol. 12, No. 6, 2002, pp. 1754-1760. doi:10.1039/b110121h
[2] H. Onoda, T. Ohta, J. Tamaki and K. Kojima, “Decomposition of Trifluoromethane over Nickel Pyrophosphate Catalysts Containing Metal Cation,” Applied Catalysis A; General, Vol. 288, No. 1-2, 2005, pp. 98-103. doi:10.1016/j.apcata.2005.04.028
[3] H. Onoda, K. Yokouchi, K. Kojima, and H. Nariai, “Addition of Rare Earth Cation on Formation and Properties of Various Cobalt Phosphates,” Materials Science and Engineering B, Vol. 116, No. 2, 2005, pp. 189-195. doi:10.1016/j.mseb.2004.10.002
[4] D. M. Lenz, M. Delamar and C. A. Ferreira, “Improvement of the Anticorrosion Properties of Polypyrrole by Zinc Phosphate Pigment Incorporation,” Progress in Organic Coatings, Vol. 58, No. 1, 2007, pp. 64-69. doi:10.1016/j.porgcoat.2006.12.002
[5] M. Mahdavian and M. M. Attar, “Investigation on Zinc Phosphate Effectiveness at Different Pigment Volume Concentrations via Electrochemical Impedance Spectroscopy,” Eletrochimica Acta, Vol. 50, No. 24, 2005, pp. 4645-4648. doi:10.1016/j.electacta.2005.02.015
[6] M. A. Hernandez, F. Galliano and D. Landolt, “Mechanism of Cathodic Delamination Control of Zinc – Aluminum Phosphate Pigment in Waterborne Coatings,” Corrosion Science, Vol. 46, No. 9, 2004, pp. 2281-2300. doi:10.1016/j.corsci.2004.01.009
[7] M. C. Deya, G. Blustein, R. Romagnoli and B. del Amo, “The Influence of the Anion Type on the Anticorrosive Behaviour of Inorganic Phosphates,” Surface and Coating Technology, Vol. 150, No. 2-3, 2002, pp. 133-142. doi:10.1016/S0257-8972(01)01522-5
[8] N. E. Topp, “Chemistry of the Rare Earth Elements,” Kagakudojin, Kyoto, 1974.
[9] H. Onoda, H. Matsui and I. Tanaka, “Improvement of Acid and Base Resistance of Nickel Phosphate Pigment by the Addition of Lanthanum Cation,” Materials Science and Engineering B, Vol. 141, No. 1-2, 2007, pp. 28-33. doi:10.1016/j.mseb.2007.05.009
[10] H. Onoda, K. Tange and I. Tanaka, “Influence of Lanthanum Addition on Preparation and Powder Properties of Cobalt Phosphates,” Journal of Materials Science, Vol. 43, No. 16, 2008, pp. 5483-5488. doi:10.1007/s10853-008-2831-7
[11] J. Liu, F. Wang, K. Sun and X. Xu, “Creation of a Monomeric Ruthenium Species on the Surface of Micro-Size Copper Hydrogen Phosphate: An Active Heterogeneous Catalyst for Selective Aerobic Oxidation of Alcohols,” Advanced Synthesis and Catalysis, Vol. 349, No. 16, 2007, pp. 2439-2444. doi:10.1002/adsc.200700187

comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.