Citric Acid → Calcium

HRID 2253556Notes

Reaction equation

HRID 2253556 reaction equation
C(O)[C@H]1O[C@H](O[C@]2(CO)O[C@H](CO)[C@@H](O)[C@@H]2O)[C@H](O)[C@@H](O)[C@@H]1O.C(=O)([O-])[O-].[Ca+2:28].[C:29]([OH:41])(=[O:40])[CH2:30][C:31]([CH2:36][C:37]([OH:39])=[O:38])([C:33]([OH:35])=[O:34])[OH:32].[C:42]([OH:50])(=[O:49])[CH:43]([CH2:45][C:46]([OH:48])=[O:47])[OH:44]>O>[C:29]([O-:41])(=[O:40])[CH2:30][C:31]([CH2:36][C:37]([O-:39])=[O:38])([C:33]([O-:35])=[O:34])[OH:32].[Ca+2:28].[C:29]([O-:41])(=[O:40])[CH2:30][C:31]([CH2:36][C:37]([O-:39])=[O:38])([C:33]([O-:35])=[O:34])[OH:32].[Ca+2:28].[Ca+2:28].[C:42]([O-:50])(=[O:49])[CH:43]([CH2:45][C:46]([O-:48])=[O:47])[OH:44].[Ca:28]

Participants

7

Reactant 4

HCID 311Citric AcidHCID 525Malic AcidHCID 5988SucroseHCID 10112Calcium Carbonate

Product 2

HCID 5460341CalciumYield 4.4%HCID 86746157HCID 86746157, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

In an alternate mode, the sucrose can be deleted from the above preparation. Thus, a calcium citrate-malate solution is prepared by admixing 62 g calcium carbonate with 11 g citric acid and 44 g malic acid dissolved in 1,040 g water at ambient temperature. This solution can be used to prepare low calorie beverages, beverage concentrates or freeze-dried for use in solid supplements. The calcium is 53% of the solid when dried to anhydrous conditions. Each ml of this solution provides 50 mg of calcium on an elemental basis.

Workup

  1. customto prepare low calorie beverages, beverage concentrates
  2. customfreeze-dried for use in solid supplements
  3. customdried to anhydrous conditions

Sources & evidence

ORD record
ord-993c7d7504174ade83c6baab875d1533
Source dataset
uspto-grants-1993_08
Patent number
US05232709

Reaction notes

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