Cobalt Oxide (Pottery Colourant)

Colourants can be added to glazes to get the desired coloured effects. Unlike stains, colourants react differently in each firing. A wide spectrum of colours can be achieved by mixing them with other colourants, opacifiers & stains.

Name: Cobalt Oxide (CoO)

Appearance Colour: Black

Form: Powder, Inorganic Compound

Recommended Usage:

• In Slips: 0.25%-2%
• In Glazes: 0.25%-1%

Output Colour: Shades of vibrant blue. When mixed with magnesium in the proper concentrations, cobalt oxide can produce purples and lavenders. When combined with titanium, greens can be achieved. Cobalt oxide is not as finely powdered as cobalt carbonate, cobalt oxide is more likely to create blue specks

Stability: Relatively stable in comparison to other colours & opacifiers

Additional Information: Cobalt oxide is stronger when compared to cobalt oxide (Co3O4). Small quanitities can result in deep, rich colour.

Caution: In its powdered form, cobalt oxide is extremely harmful and can cause skin, eye and/or respiratory system irritation. Please use proper precautions, including protective coverings, when working with this substance. Keep out of the reach of children. If inappropriate contact occurs, please seek medical help immidiately.

Note: Owing to the nature of ceramic making process and the varied combinations of elements, we request the user to always test their formulations before bulk production/purchase. It is for the user to satisfy that the product meets their requirements.