Cobalt Oxide Cobalt Oxid Oxyde De Cobalt

Cobalt oxide is a consistent, reliable oxide and a common colorant in pottery. It is available in powdered form and is blackish in color. It is a very strong oxide, and using very small quantities yields bright, intense blues. In ceramics, cobalt oxide is used mainly in slips, washes and glazes and can be applied through brushwork, decals or other surface decorating techniques. It can also be added to porcelain or stoneware clay. Because cobalt oxide is not as finely powdered as cobalt carbonate, cobalt oxide is more likely to create blue specks, a quality that we believe can be quite beautiful! Because of the strength of this oxide as a colorant, glazes containing cobalt can produce halos and flashing during firings. [formula] Co3o4 [cas registry number] 1308-06-1 [synonyms] Cobalt oxide 73%, cobalt oxide frit grade. Black cobalt. Tricobalt tetraoxide. [appearance] Cobalt oxide occurs as a grey to black powder. [solubility] Cobalt oxide is insoluble in water but soluble in acids. [uses] Cobalt oxide is mainly used as a pigment for colouring glass and frits. Sometimes also used as catalyst or as a source for metallic cobalt. [description] Cobalt oxide is a is a harmful allergenic compound. It is an inorganic compound and mostly found as tricobalt tetraoxide. At room temperature is presented as a black odourless solid. [classification] Cobalt oxide is hazardous to the environment and harmful, if swallowed; May cause sensitisation by skin contact and is toxic to aquatic organisms Causing long-term adverse effects in aquatic environment