Where to get Cobalt dioxide?

Cobalt dioxide or cobalt monoxide is an inorganic compound that appears as olive-green to red crystals, or as a greyish or black powder.[3] It is used extensively in the ceramics industry as an additive to create blue colored glazes and enamels as well as in the chemical industry for producing cobalt(II) salts.
Properties of Cobalt dioxide
CoO crystals adopt the periclase (rock salt) structure with a lattice constant of 4.2615 Å.
It is antiferromagnetic below 16 °C.
Cobalt(II,III) oxide decomposes to cobalt(II) oxide at 950 °C.
As can be expected, cobalt(II) oxide reacts with mineral acids to form the corresponding cobalt salts.
Applications
Cobalt dioxide has for centuries used as a coloring agent on kiln fired pottery. The additive provides a deep shade of blue named cobalt blue. The band gap (CoO) is around 2.4 eV. It also is used in cobalt blue glass.
More about: Cobalt dioxide sale
Read more: Cobalt Oxide