Calcium Carbonate → Phytate

HRID 2109876

Reaction equation

HRID 2109876 reaction equation
C(=O)([O-])[O-].[Ca+2].[C@@H:6]1([O:37][P:38]([OH:41])([OH:40])=[O:39])[C@@H:11]([O:12][P:13]([OH:16])([OH:15])=[O:14])[C@H:10]([O:17][P:18]([OH:21])([OH:20])=[O:19])[C@@H:9]([O:22][P:23]([OH:26])([OH:25])=[O:24])[C@@H:8]([O:27][P:28]([OH:31])([OH:30])=[O:29])[C@H:7]1[O:32][P:33]([OH:36])([OH:35])=[O:34]>>[CH:8]1([O:27][P:28]([OH:31])([OH:30])=[O:29])[CH:9]([O:22][P:23]([OH:25])([OH:26])=[O:24])[CH:10]([O:17][P:18]([OH:20])([OH:21])=[O:19])[CH:11]([O:12][P:13]([OH:16])([OH:15])=[O:14])[CH:6]([O:37][P:38]([OH:41])([OH:40])=[O:39])[CH:7]1[O:32][P:33]([OH:35])([OH:36])=[O:34]

Participants

3

Reactant 2

HCID 10112Calcium CarbonateHCID 178527091HCID 178527091, compound

Product 1

HCID 890PhytateYield 137.9%

Conditions

Temperature
90 °C

Procedure

Alternatively, the phytic hexa-citrate compound was produced by the following method: First, 0.33 kg of calcium carbonate was slowly added, in increments of 0.1 kg, to 0.87 kg of phytic acid liquid. The mixture was heated and refluxed for about one hour at about 90° C. The two solids were separated and filtered. The white solid, which was calcium phytate, was collected. About 1 kg of the calcium phytate was dissolved into 2.0 liters of water and heated to about 89° C. for about 10-15 minutes until calcium phytate was completely dissolved in the water solution. About 0.9 kg of citric acid was then added to and stirred in the calcium phytate soluttion until the citric acid was completely dissolved. The heat source was removed and the resulting mixture was left sat at no more than 40° C. or in a refrigerated environment at a temperature of about 5-10° C. to allow the newly formed phytic hexa-citrate to crystallize for approximately 6 to 8 hours or until crystallization has ceased. The mixture was allowed to dry out at room temperature until no liquid was visible. The crystals were spread in a drying pan for approximately 24 hours at a temperature of no more than 40° C., which yielded approximately 1.2 kg of hexa-citrated phytate.

Workup

  1. temperatureThe mixture was heated
  2. customThe two solids were separated
  3. filtrationfiltered
  4. customwas collected
  5. dissolutionAbout 1 kg of the calcium phytate was dissolved into 2.0 liters of water
  6. temperatureheated to about 89° C. for about 10-15 minutes until calcium phytate
  7. dissolutionwas completely dissolved in the water solution
  8. additionAbout 0.9 kg of citric acid was then added to and
  9. dissolutionwas completely dissolved
  10. customThe heat source was removed
  11. waitthe resulting mixture was left
  12. customsat at no more than 40° C. or in a refrigerated environment at a temperature of about 5-10° C.
  13. customto crystallize for approximately 6 to 8 hours or until crystallization
  14. customto dry out at room temperature until no liquid

Sources & evidence

ORD record
ord-847bf9c7784c4aee87d2fd3e90c0dfce
Source dataset
uspto-grants-2009_04
Patent number
US07517868B2

Linked notes

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