Monday, 20 February 2012

What is the use of Cobalt carbonate?

Cobalt is a lustrous, silvery-blue metallic chemical element, symbol Co, atomic number of 27 and an atomic weight of 58.93.
Cobalt compounds are used as pigments in glass and ceramics. It is used as a drying agent for paints, varnishes and inks.
Uses
Cobalt carbonate is a precursor to cobalt carbonyl and various cobalt salts. It is a component of dietary supplements since cobalt is an essential element. It is an precursor to blue pottery glazes, famously in the case of Delftware.
Cobalt carbonate has the coloring application as it decomposes to cobalt oxide at high temperature. Cobalt carbonate tends to disperse better in a glaze but can produce blisters because of the CO2 gas presence at high temperature. Commercial grades of cobalt carbonate are the complex of carbonate and hydroxide such as cobalt carbonate hydroxide (1:1) (CAS RN: 12069-68-0), Cobalt carbonate hydroxide (2:3) (CAS RN: 12602-23-2), and cobalt carbonate hydroxide (2:3) monohydrate (CAS RN: 51839-24-8).
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