Citric Acid → Tricalcium Citrate

HRID 482673

Reaction equation

HRID 482673 reaction equation
C([O-])([O-])=O.[Ca+2:5].[C:6]([OH:18])(=[O:17])[CH2:7][C:8]([CH2:13][C:14]([OH:16])=[O:15])([C:10]([OH:12])=[O:11])[OH:9]>O>[C:6]([O-:18])(=[O:17])[CH2:7][C:8]([CH2:13][C:14]([O-:16])=[O:15])([C:10]([O-:12])=[O:11])[OH:9].[Ca+2:5].[C:6]([O-:18])(=[O:17])[CH2:7][C:8]([CH2:13][C:14]([O-:16])=[O:15])([C:10]([O-:12])=[O:11])[OH:9].[Ca+2:5].[Ca+2:5]

Participants

4

Reactant 2

HCID 311Citric AcidHCID 10112Calcium Carbonate

Product 1

HCID 13136Tricalcium Citrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To sixty grams of bright casing solution contained in a beaker and given continuous agitation with a magnetic stir bar, there were added 1.34 grams of Ca(OH)2 powder, 15 grams of CaCO3 powder, and 22.0 grams of citric acid dissolved in 60 ml of water. Upon completion of effervescence, the mixture was filtered through a Whatman grade 54 filter paper. The resultant clear solution had a pH of 3.47 and a solids content of about 19.3%. If allowed to stand quiescent for 15 hours, it formed a precipitate of calcium citrate, Ca3 (C6H5O7)2.4H2O.

Workup

  1. filtrationUpon completion of effervescence, the mixture was filtered through a Whatman grade 54
  2. filtrationfilter paper

Sources & evidence

ORD record
ord-acf1a1007f95487c80e95c813d50a6c9
Source dataset
uspto-grants-1986_03
Patent number
US04574819

Linked notes

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