Cobalt(II) acetate
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| Cobalt(II) acetate | |
|---|---|
 | |
| IUPAC name Cobalt(II) acetate | |
| Identifiers | |
| CAS number | 71-48-7  , (anhydrous)6147-53-1 (tetrahydrate) |
| PubChem | 6277 |
| ChemSpider | 6041 |
| UNII | 3XC4P44U7E |
| Jmol-3D images | {{#if:[Co+2].[O-]C(=O)C.[O-]C(=O)C|Image 1 |
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| Properties | |
| Molar mass | 177.02124 g/mol (anhydrous) 249.08 g/mol (tetrahydrate) |
| Appearance | Pink crystals (anhydrous) intense red crystals (tetrahydrate) |
| Odor | vinegar (tetrahydrate) |
| Density | 1.705 g/cm3 (tetrahydrate) |
| Melting point | 140 °C (tetrahydrate) |
| Solubility in water | Soluble |
| Solubility | soluble in alcohol, dilute acids, pentyl acetate (tetrahydrate) |
| Refractive index (nD) | 1.542 (tetrahydrate) |
| Hazards | |
| MSDS | J.T. Baker MSDS |
| NFPA 704 |
 0
1
0
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| LD50 | 503 mg/kg (oral, rat) |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | |
| Infobox references | |
Cobalt(II) acetate is the cobalt(II) 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:
- CoO + 2 HC2H3O2 → Co(C2H3O2)2 + H2O
Cobalt(II) acetate may be reacted with salenH2 to give salcomine, an oxygen-transport compound:[1]
- Co(OAc)2 + salenH2 → Co(salen) + 2 HOAc
Cobalt(II) acetate is harmful if swallowed or inhaled. It may cause an allergic skin reaction. Chronic exposure may affect heart, thyroid, lungs, and kidneys. [2]
References
- ↑ Appleton, T. G. (1977). "Oxygen Uptake by a Cobalt(II) Complex". J. Chem. Ed. 54 (7): 443. doi:10.1021/ed054p443.
- ↑ MallBaker MSDS
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