Calcium acetate

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Calcium acetate
Chemical formula Ca(CH3COO)2
OTP appearance white solid 
Molar Mass(g/mol) 158.17 
Density(g/cc) 1.509 
Solubility in water(g/L) 347
NFPA 704
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Thermal Decomposition
Calcium acetate
160°C
propanone,
calcium carbonate

Uses

Justification Questioned

Other

  • Feedstock for propanone
  • Component in "sterno"-type flammable gels (A semisolid saturated solution, gels by absorbing ethanol)
  • As an intermediate form in the purification of acetic acid
  • Nutritional calcium

Hazards

Calcium acetate is Generally Recognized As Safe by the US FDA

Production

Synthesis

  • Video Nowaclvid.gif
  1. Prepare a strong solution of cool acetic acid
  2. Dissolve calcium carbonate in excess.
    Check:This should produce bubbles of carbon dioxide.
    CaCO3 + 2 CH3COOH Ca(CH3COO)2 + H2O + CO2
  3. Filter the solution
  4. Run water in excess through the filter
  5. Discard the residue (chiefly calcium carbonate)
  6. Evaporate the solution gently leaving crystals of calcium acetate

N.B. This is a slight variation on the vinegar-and-baking-soda kitchen chemistry experiment, which produces sodium acetate. Because calcium carbonate is insoluble in water, it is easier to separate from the resulting acetate.

Testing

Purification

Storage

Disposal

References

See Also