Cobalt (II) Oxide or Cobalt Monoxide is an inorganic compound that appears as olive-green to red crystals, or as a greyish or black powder.
CoO crystals adopt the periclase (rock salt) structure with a lattice constant of 4.2615 Å.
It is antiferromagnetic below 16 °C.
|
Sr. No. |
Test |
Specification |
|
1 |
CAS Number: |
1308-06-1 |
|
2 |
Formula |
CoO |
|
3 |
Molecular weight |
74.93 g/mol |
|
4 |
Synonym |
Cobaltous OXIDE |
|
5 |
Appearance (color) |
STEEL GREY-BLACK |
|
6 |
Appearance (form) |
POWDER |
|
7 |
Solubility |
Insoluble in water, Soluble in acids |
|
8 |
Cobalt (%) |
72 - 73 % min |
|
9 |
Calcium (Ca) |
< 0.005 % |
|
10 |
Chloride |
< 0.001 % |
|
11 |
Iron |
< 0.01 % |
|
12 |
Sulphate |
< 0.45 % |
|
|
|
|
Uses: 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.