Cobalt oxide

Cobalt oxide can refer to either of the following:

• Cobalt(II) oxide, CoO, black powder
• Cobalt(II,III) oxide, Co₃O₄, black powder
• Cobalt(III) oxide, Co₂O₃, black powder

Related pages

• Cobalt(II) hydroxide, Co(OH)₂, red or blue-green powder