Description
72% Cobalt (II,III) Oxide (Co₃O₄, Cobalt Tetroxide)
72% Cobalt (II,III) Oxide, chemical formula Co₃O₄, CAS No.1308-06-1, black superfine inorganic powder with 72% cobalt content, the core raw material for high-temperature blue ceramic colorants.
It owns strong high-temperature coloring stability, uniform tinting power, no color fading after kiln firing, widely matched with other mineral raw materials to produce royal blue, sky blue, navy blue ceramic glazes and underglaze pigments.
- Ceramic Tiles & Sanitary Ware: Main blue colorant for wall tiles, floor tiles, toilet glaze, stable color under high firing temperature;
- Tableware & Decorative Ceramics: Bright blue underglaze pigment for porcelain, bone china and art ceramic crafts;
- Enamel & Glass: Blue coloring additive for daily enamelware, craft crystal and colored glass;
- Industrial Color Paste: Basic raw material for ceramic color factories to compound compound blue pigments.
Our 72% cobalt tetroxide features tiny uniform particle size, good dispersion in glaze slip, low heavy metal impurities, consistent cobalt content batch by batch, no color difference in mass firing.
Key Specifications
- Chemical Name: 72% Cobalt (II,III) Oxide / Cobalt Tetroxide
- Formula: Co₃O₄
- CAS Number: 1308-06-1
- Cobalt Content: 72% Min
- Appearance: Jet Black Superfine Powder
- Core Advantages: Strong Tinting Strength, High Temperature Resistance, Uniform Blue Color, Good Dispersion
- Main Applications: Ceramic Glaze Colorant, Underglaze Pigment, Sanitary Ware Glaze, Enamel, Colored Craft Glass
Our Advantages
- Precise cobalt content testing, complete COA, MSDS and firing color test reports provided
- Stable large inventory, standard 25kg woven bag & iron drum packaging options
- Factory direct bulk supply for ceramic pigment manufacturers in Asia & Africa
- Free test samples for glaze firing color matching, fast delivery cycle
If you need stable 72% cobalt tetroxide for blue ceramic pigment and glaze production, send inquiry to get latest quotation and technical datasheet.











