Cobalt Oxide

Cobalt oxide (CoO) typically appears as black hexagonal crystals. It provides a unique "cobalt blue" hue in ceramic glazes and glass—serving as the core pigment for blue-and-white porcelain and acting as a high-performance colorant. In coatings, it is used to produce weather-resistant blue pigments for high-end industrial finishes. In ceramics and enamels, it enhances glaze hardness and wear resistance. Driven by its triple functions of "coloration + battery applications + catalysis," it powers advancements in new energy, high-end manufacturing, and environmental protection industries.