1. Cobalt Acetate

CAS No.: 71-48-7
Cobalt Acetate is the cobalt salt of acetic acid. It may also be found as the tetrahydrate. It may be formed by the reaction between cobalt oxide or hydroxide and acetic acid. Cobalt acetate may be reacted with salen H2 to give salcomine, an oxygen-transportcompound.

2. Cobalt Chloride

CAS No.: 7646-79-9
Cobalt Chloride is an inorganic compound of cobalt and chlorine, with the formula CoCl2. It is usually supplied as the hexahydrate CoCl2·6H2O, which is one of the most commonly used cobalt compounds in the laboratory.[1] The hexahydrate is deep purple in color, whereas the anhydrous form is sky blue. A blend would be mauve. Because of the ease of the hydration/dehydration reaction, and the resulting color change, cobalt chloride is used as an indicator for water in desiccants. Niche uses include its role in organic synthesis and electroplating objects with cobalt metal. Cobalt(II) chloride gives a blue-green color in a flame.

3. Cobalt Carbonate

CAS No.: 513-79-1
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 a precursor to blue pottery glazes, famously in the case of Delftware.

4. Cobalt Nitrate

CAS No.: 10141-05-6
Cobalt Nitrate is the inorganic cobalt(II) salt of nitric acid, often with various amounts of water. It is more commonly found as a hexahydrate, Co(NO3)2·6H2O, which is a red-browndeliquescent salt that is soluble in water and other polar solvents.

5. Cobalt Oxide

CAS No.: 1307-96-6
Cobalt Oxide has for centuries used as a coloring agent on kiln fired pottery. The additive provides a deep shade of blue named cobalt blue. The band gap (CoO) is around 2.4 eV. It also is used in cobalt blue glass.

6. Cobalt Sulphate

CAS No.: 10124-43-3
Cobalt Sulphate is used in the preparation of pigments, as well as in the manufacture of other cobalt salts. Cobalt pigment is used in porcelains and glass. Cobalt sulphate is used in storage batteries and electroplating baths, sympathetic inks, and as an additive to soils and animal feeds. For these purposes, the cobalt sulphate is produced by treating cobalt oxide with sulphuric acid.

7. Cobalt Sulphide

CAS No.: 1317-42-6
Cobalt Sulphide is the name for chemical compounds with a formula CoxSy. Well-characterized species include minerals with the formula CoS2 and Co3S4, and the synthetic material Co9S8. In combination with molybdenum, the sulfides of cobalt are used as catalysts for the industrial process called hydrodesulfurization, which is implemented on a large scale in refineries.

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