Cobalt(II) nitrate
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| Cobalt(II) nitrate | |
|---|---|
-nitrate-hexahydrate-sample.jpg) |
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| Other names | Cobaltous nitrate Nitric acid, cobalt(2+) salt |
| Identifiers | |
| CAS number | [], 10026-22-9 (hexahydrate) |
| PubChem | |
| EC number | |
| RTECS number | GG1109000 |
| Properties | |
| Molecular formula | Co(NO3)2 |
| Molar mass | 182.943 g/mol (anhydrous) 291.03 g/mol (hexahydrate) |
| Appearance | pale red powder (anhydrous) red crystalline (hexahydrate) |
| Density | 2.49 g/cm3 (anhydrous) 1.87 g/cm3 (hexahydrate) |
| Melting point |
100 °C, decomp (anhydrous) |
| Boiling point |
100–105 °C, decomp (hexahydrate) |
| Solubility in water | 134 g/100 ml, 0 °C (hexahydrate) soluble (anhydrous) |
| Solubility | soluble in alcohol, acetone (hexahydrate) |
| Structure | |
| Coordination geometry |
monoclinic (hexahydrate) |
| Hazards | |
| MSDS | Cobalt (II) Nitrate MSDS |
| EU Index | 027-009-00-2 |
| EU classification | Carc. Cat. 2 Muta. Cat. 3 Repr. Cat. 2 Toxic (T) Dangerous for the environment (N) |
| R-phrases | R49, R60, R42/43, R68, R50/53 |
| Related compounds | |
| Other anions | Cobalt(II) sulfate Cobalt(II) chloride |
| Other cations | Iron(II) nitrate Nickel(II) nitrate |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Cobalt nitrate is a chemical salt formed from the metal cobalt and the nitrate ion. It is an oxidizer and is soluble in water. It is more commonly found as a hexahydrate, Co(NO3)2·6H2O
It is deliquescent in moist air and soluble in most polar solvents. It is derived from reacting metallic cobalt or one of its oxides, hydroxides, or carbonate with nitric acid. It is commonly used in dyes and inks.[1]
[edit] Uses
The high solubility of cobalt nitrate makes it a common source of cobalt in metal-organic frameworks and polymers. It is also reduced to metallic cobalt or precipitated on various substrates for Fischer-Tropsch catalysis.[2]
[edit] References
- ^ Lewis, Richard J., Sr. (2002). Hawley's Condensed Chemical Dictionary (14th Edition). John Wiley & Sons. Online version available at: http://www.knovel.com/knovel2/Toc.jsp?BookID=704&VerticalID=0
- ^ Ernst B, Libs S, Chaumette P, Kiennemann A. Appl. Catal. A 186 (1-2): 145-168 1999
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