Cobalt sulfide
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Cobalt sulfide is the name for chemical compounds with a formula CoxSy. Well-characterized species include minerals with the formulas CoS, CoS2, Co3S4, and Co9S8. In general, the sulfides of cobalt are black, semiconducting, insoluble in water, and nonstoichiometric.[1]
Quick Facts Identifiers, Properties ...
Identifiers | |
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PubChem CID |
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RTECS number |
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UNII | |
Properties | |
CoxSy | |
Molar mass | 90.9982 g/mol |
Appearance | black solid (alpha) grayish-red crystals (beta) |
Density | 5.45 g/cm3 |
Melting point | 1195 °C |
0.00038 g/100 mL (18 °C) | |
Solubility | slightly soluble in acid |
+225.0·10−6 cm3/mol | |
Structure | |
octahedral (beta) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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