Citric Acid → Malic Acid

HRID 1712861Notes

Reaction equation

HRID 1712861 reaction equation
C(O)(=O)C[C:3]([CH2:8][C:9]([OH:11])=[O:10])([C:5]([OH:7])=[O:6])[OH:4].P(=O)(O)(O)O>>[C:5]([OH:7])(=[O:6])[CH:3]([CH2:8][C:9]([OH:11])=[O:10])[OH:4]

Participants

3

Reactant 2

HCID 311Citric AcidHCID 1004Phosphoric Acid

Product 1

HCID 525Malic Acid

Procedure

5 pounds of citric acid; 4 pounds of Red Punch 586323 CE, available from Premium Ingredients, Franklin Park, Ill.; 8 pounds of Tropical Fruit 597540 C, available from Premium Ingredients, Franklin Park, Ill.; 8 pounds of Raspberry Flavor 01-EF956, available from Western Flavors and Fragrances, Livermore, Calif., may be added. The combined admixture may be mixed for 2 minutes, and the pH may be checked and adjusted if necessary with phosphoric acid to the desired target pH of about 2.8-3.4, usually about pH 3.1.

Workup

  1. addition, may be added
  2. additionThe combined admixture may be mixed for 2 minutes

Sources & evidence

ORD record
ord-583691c8ec0f415398785a606ed3a44e
Source dataset
uspto-grants-2010_09
Patent number
US07794770B2

Reaction notes

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