FULLN CHEMICAL Ceramic glaze pigment Non-Cobalt black is a kind of black pigment consists of manganese oxide, nickel, red iron oxide, chromium oxide green raw materials by mixing, calcination, micro powder processing. It is the high temperature calcined product. In the process of reaction, manganese oxide (Mn2+), nickel oxide (Ni2+), red iron oxide (Fe3+), chrome green (Cr3+) diffuses with each other in the form of ions and form the material of spinel structure. It is suitable in oxidizing atmosphere firing and for zinc-free glazes.