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1 results

  • Synthesis and characterization of (NH4)1.5Cu2Cr2O8(OH)1.5⋅H2O

  • Johana Arboleda, Adriana Echavarria, Luz Amparo Palacio
  • Journal:
    Powder Diffraction / Volume 24 / Issue 3 / September 2009
    Published online by Cambridge University Press:
    29 February 2012, pp. 244-246

  • A new single-phase copper chromate compound was successfully synthesized by a hydrothermal method and characterized by XRD, SEM, TGA, and XRF analysis. The experimental XRD pattern was analyzed by automatic indexing and the compound was found to be monoclinic with space group P21/a and unit-cell parameters of a=10.1829(11) Å, b=4.9516(6) Å, c=7.2899(7) Å, and β=103.64(1)°. The chemical formula of the copper chromate compound determined by XRF and TGA was determined to be (NH4)1.5Cu2Cr2O8(OH)1.5⋅H2O. XRD results also showed that the synthesized compound decomposed into CuCr2O4 and CuO after being calcined at 600 °C.