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Cobalt Sulfide (CoS)-Powder

  • 1317-42-6
  • CoS
  • 271600PD
  • 99.5%
  • - 100 mesh approx
  • 215-273-3
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Characteristic


Cobalt sulfide is the name for chemical compounds with a formula CoxSy. Well-characterized species include minerals with the formula CoS, CoS2, Co3S4, and Co9S8. In general, the sulfides of cobalt are black, semiconducting, insoluble in water


Chemical formula:CoxSy

Molar mass:90.9982 g/mol

Appearance:black solid (alpha)

                       grayish-red crystals (beta)

Density:5.45 g/cm3

Melting point:1195 °C

Solubility in water:0.00038 g/100 mL (18 °C)

Solubility:slightly soluble in acid

Magnetic susceptibility (χ):+225.0·10−6 cm3/mol

Crystal structure:octahedral (beta)


Application


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. Synthetic cobalt sulfides are widely investigated as electrocatalysts.




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