|Jmol-3D images||Image 1|
|Molar mass||240.80 g/mol|
|Melting point||895 °C (1,643 °F; 1,168 K)|
|Boiling point||900 °C (1,650 °F; 1,170 K) (decomposes)|
|Solubility in water||Insoluble|
|Solubility||soluble in acids and alkalis|
|R-phrases||R40 R41 R42 R43|
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)|
|(what is: / ?)|
Cobalt(II,III) oxide is inorganic compound with the formula Co3O4. It is one of two well characterized cobalt oxides. It is a black antiferromagnetic solid. As a mixed valence compound, its formula is sometimes written as CoIICoIII2O4 and sometimes as CoO.Co2O3.
|tetrahedral coordination geometry of Co(II)||distorted octahedral coordination geometry of Co(III)||distorted tetrahedral coordination geometry of O|
- 2 Co3O4 6 CoO + O2
This inorganic compound is currently utilized in the process of artificial photosynthesis.
Cobalt compounds are potentially poisonous in large amounts.