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  • 1 University of Pardubice Department of Inorganic Technology, Faculty of Chemical Technology Pardubice Czech Republic 532 10 nám. Čs. legií 565 Pardubice Czech Republic 532 10 nám. Čs. legií 565
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Abstract  

The novel two-step synthesis method decreasing the calcining temperature necessary for formation of spinel lattice and as well for reaching of bright and clear hue of the pigments prepared were investigated. This work aims to utilization of DTA for synthesis monitoring. Influence of raw materials and temperature of calcination on color properties were observed. The characterization of the samples was performed by X-ray diffraction and colorimetry in the CIE L*a*b* system. It was proved that the black spinel pigment Cu2.3Mn2.8Cr4.9Ox can be prepared at finally temperature 700C as one-phase system with high quality black hue.

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