Names | |
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IUPAC name
Cobalt(II) cyanide
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Other names
cobaltous cyanide
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Identifiers | |
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3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.008.028 |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
Co(CN)2 | |
Molar mass | 110.968 g/mol (anhydrous) 147.00 g/mol (dihydrate) 165.02 g/mol (trihydrate) |
Appearance | deep-blue powder hygroscopic (anhydrous) reddish-brown powder (dihydrate) |
Density | 1.872 g/cm3 (anhydrous) |
Melting point | 280 °C (536 °F; 553 K) (anhydrous) |
insoluble[1] | |
Solubility | dihydrate degraded with dissolution by NaCN, KCN, NH4OH, HCl |
+3825·10−6 cm3/mol | |
Related compounds | |
Other anions
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Cadmium chloride, Cadmium iodide |
Other cations
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Zinc cyanide, Calcium cyanide, Magnesium cyanide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cobalt(II) cyanide is the inorganic compound with the formula Co(CN)2. It is coordination polymer that has attracted intermittent attention over many years in the area of inorganic synthesis and homogeneous catalysis.