Acetic Acid → Calcium Acetate

HRID 580755Notes

Reaction equation

HRID 580755 reaction equation
C(=O)([O-])[O-].[Ca+2:5].[C:6]([OH:9])(=[O:8])[CH3:7]>>[C:6]([O-:9])(=[O:8])[CH3:7].[Ca+2:5].[C:6]([O-:9])(=[O:8])[CH3:7]

Participants

3

Reactant 2

HCID 176Acetic Acid2×HCID 10112Calcium Carbonate

Product 1

HCID 6116Calcium Acetate

Procedure

In a similar experiment, 200 g of the ash was mixed with 3.0 L of 20% (v/v) or 21% (w/w) acetic acid. That amount of acetic acid corresponded to 4.2 times the stoichiometric proportion of calcium carbonate in the ash. The slurry was agitated and left overnight at room temperature. 2.7 L of liquid was collected. The liquid collected contained 9.2±0.2% solids (based on two separate measurements), as was shown by evaporation of a 10-mL sample at 105° C. The theoretical amount of calcium acetate, formed in the reaction mixture, would have been 6.6% by weight. The elemental calcium content in the dried solids was determined to be 19.2±0.4% (based on two independent measurements), translating into 76% Ca(CH3COO)2, or 85% Ca(CH3COO)2.H2O.

Workup

  1. custom2.7 L of liquid was collected
  2. customThe liquid collected
  3. customas was shown by evaporation of a 10-mL sample at 105° C

Sources & evidence

ORD record
ord-f8d8eb770bae400e911c76eb1fdb3e87
Source dataset
uspto-grants-1999_07
Patent number
US05919424

Reaction notes

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