Cobalt(II) acetate

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Cobalt(II) acetate
Identifiers
CAS number 71-48-7 YesY, (anhydrous)
6147-53-1 (tetrahydrate)
PubChem 6277
ChemSpider 6041 YesY
UNII 3XC4P44U7E YesY
Jmol-3D images Image 1
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
NFPA 704.svg
0
1
0
LD50 503 mg/kg (oral, rat)
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 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]

[edit] References

  1. ^ Appleton, T. G. (1977). "Oxygen Uptake by a Cobalt(II) Complex". J. Chem. Ed. 54 (7): 443. doi:10.1021/ed054p443. 
  2. ^ http://www.mallbaker.com/americas/msds/english/c4895_msds_us_default.pdf%7CMallBaker MSDS
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