Cobalt(II,III) oxide

CoO.Co2O3 Cobalt(II,III) oxide is an inorganic compound with the formula Co3O4.

[4] Co3O4 adopts the normal spinel structure, with Co2+ ions in tetrahedral interstices and Co3+ ions in the octahedral interstices of the cubic close-packed lattice of oxide anions.

[4] Cobalt(II) oxide, CoO, converts to Co3O4 upon heating at around 600–700 °C in air.

[4][5] These reactions are described by the following equilibrium: Cobalt(II,III) oxide is used as a blue coloring agent for pottery enamel and glass, as an alternative to cobalt(II) oxide.

Cobalt compounds are potentially poisonous in large amounts.

Cobalt(II,III) oxide
Cobalt(II,III) oxide
Ball-and-stick model of the unit cell of Co3O4
Ball-and-stick model of the unit cell of Co3O4
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 0: Will not burn. E.g. water Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code