Cobalt Carbonate

Cobalt carbonate is a paramagnetic inorganic chemical that is distinguished by its brilliant red hue. Cobalt carbonate is an intermediate in the synthesis of cobalt carbonyl and other cobalt salts. Because cobalt is an important nutrient, it is included in dietary supplements. It is a forerunner of blue ceramic glazes, most notably in the instance of Delftware. Cobalt carbonate has several potential applications in ceramics.

Molecular Formulae- CoCO3

Alternative Names- Cobaltous carbonate; Cobalt (II) salt

Country of Origin- India

BENEFITS AND APPLICATION-

• It may be used alone, by applying it to the surface of an unfired pot and then firing it to the temperature of the clay body.
• When mixed with other colorants such as magnesium and applied to a glaze, it can generate more intense purples and reddish blues in oxidation and reduction firings.
• When combined with white clay bodies, this colorant can be used to create blue slips. In this manner, you may generate many different colors of blue with varying intensities.
• In addition, when blended in the right quantities with iron and manganese, it is possible to generate strong blacks. In general, cobalt carbonate is a colorant that is generally stable in all kiln atmospheres. 
• Cobalt carbonate is another popular ingredient in ceramic decals, and it is the colorant that has traditionally been linked with Delft ceramics.
• Using cobalt in washes and with brush application adds another layer of vibrancy to the surface ornamentation of ceramics.