Synthesis of Co-Zn-Al-Ti-Cr spinel pigment

Abstract

A synthesis of the green spinel pigment Co3.7Zn4.3Al2.9TiCr11.7Ox by a new method of preparation has been investigated. All the samples of pigment were prepared by a two-step method of preparation. The influences of the raw material on the colour properties of the pigments were monitored. An STA Jupiter 449 apparatus (NETZSCH GmbH, Germany) was used for determination of the second step of the preparation. The colour of the pigments was measured in the visible region of light (400-700 nm) with a MiniScan (Hunter Lab, USA). The structures of prepared samples of pigment were studied by X-ray powder diffraction using D8 Advance equipment (Bruker, AXS, UK). The grain size distribution, specific weight, oil number and CPVC of the prepared samples were determined too.