Cobalt(III) Oxide - Materials / Alfa Chemistry

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Cobalt(III) Oxide

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Catalog Number

ACMA00014320

Product Name

Cobalt(III) Oxide

Category

Glass Additives

Application

Cobalt(III) Oxide is primarily used for its role as a pigment, offering a steel-gray or black hue that is ideal for coloring enamels and glazing pottery. Although neither cobalt(III) oxide (Co2O3) nor its hydroxide (Co(OH)3) are definitively established, the compound is notable for its chemical versatility. When cobalt(III) hydroxide is oxidized or a cobalt(III) complex is broken down with alkali, a brown or black powder of Co2O3 can be formed, which upon drying becomes Co2O3.H2O. This "monohydrate" undergoes further transformation under heat, evolving oxygen and converting to Co3O4. Printing as a steel-gray or black powder, Cobalt(III) Oxide is soluble in concentrated acids but insoluble in water, facilitating its production of various Co3+ salts through interactions with mineral acids. The compound's heating and reduction processes also excite interest in its potential conversion to cobalt metal, demonstrating its wide-ranging utility in chemical reactions and industrial applications.

MSDS

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COA

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Spec Sheet

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