Acetic Acid → Calcium Acetate

HRID 1737137Notes

Reaction equation

HRID 1737137 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

(EXAMPLE 18) 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 extract 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-9e69cea78c02407da574bd8e8b459cc3
Source dataset
uspto-grants-1999_10
Patent number
US05961941

Reaction notes

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