Water → Citric Acid

HRID 1088442Notes

Reaction equation

HRID 1088442 reaction equation
O=C([O:13][C:14]([C@@H:16]([C@H:18]([C@@H:20]([C@@H:22](CO)[OH:23])O)[OH:19])O)=[O:15])[C@@H]([C@H]([C@@H]([C@@H](CO)O)O)O)O.[Mg].[Ca].[C:28](=O)([O-:30])[O-:29].[OH2:32]>>[C:14]([OH:13])(=[O:15])[CH2:16][C:18]([CH2:20][C:22]([OH:23])=[O:32])([C:28]([OH:30])=[O:29])[OH:19]

Participants

6

Reactant 5

HCID 962WaterHCID 19660Carbonate IonHCID 5460341CalciumHCID 5462224MagnesiumHCID 54023781HCID 54023781, compound

Product 1

HCID 311Citric Acid

Procedure

25 grams of gluconic acid anhydride; 80 grams of dried and purified magnesium hydroxycarbonate prepared by heating in a steel tray exposed to the steam and air at 165° C. for 18 hours so that all organic material present has been oxidized; 12 grams of magnesium acid citrate; and 4 grams of calcium as the carbonate were admixed, all in powdered form. Next 20 grams of distilled water was heated to a temperature of 80° C., and then added to the 300 gram heat-resistant glass bottle. The admixed powders were then introduced into the glass bottle containing the heated distilled water and were dissolved therein. The evolvement of carbon dioxide gas from the liquid was observed. When this evolution of carbon dioxide had subsided, the magnesium gluconocitrate solution was filtered, introduced into a glass bottle, stoppered and was placed into the autoclave as is done in the prior art. During autoclaving, the bottle did not break.

Workup

  1. custom80 grams of dried
  2. custompurified magnesium hydroxycarbonate
  3. customprepared
  4. additionThe admixed powders were then introduced into the glass bottle
  5. additioncontaining the heated
  6. distillationdistilled water
  7. dissolutionwere dissolved
  8. filtrationthe magnesium gluconocitrate solution was filtered
  9. additionintroduced into a glass bottle

Sources & evidence

ORD record
ord-f1e910185cdf4f988502a21ab9d67095
Source dataset
uspto-grants-1990_10
Patent number
US04962208

Reaction notes

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