Citric Acid → Aluminum Citrate

Reaction equation

[Cl-].[Al+3:2].[Cl-].[Cl-].[C:5]([OH:17])(=[O:16])[CH2:6][C:7]([CH2:12][C:13]([OH:15])=[O:14])([C:9]([OH:11])=[O:10])[OH:8]>>[C:5]([O-:17])(=[O:16])[CH2:6][C:7]([CH2:12][C:13]([O-:15])=[O:14])([C:9]([O-:11])=[O:10])[OH:8].[Al+3:2].[Al:2]

Participants

Reactant 2

HCID 311Citric Acid2×

HCID 6451240Aluminum(III) Chloride

Product 2

HCID 91599Aluminum Citrate

HCID 5359268Aluminum

Procedure

combining the aluminum chloride solution with an aqueous solution of citric acid containing up to about 50% (w/w) citric acid while providing vigorous agitation to form a solution of aluminum citrate containing from 1 to about 3 weight % aluminum and having a mole ratio of aluminum ion to citric acid molecule of from about 1.5:1 to about 2:1; and