Calcium citrate is the calcium salt of citric acid. It is commonly used as a food additive (E333), usually as a preservative, but sometimes for flavor.
Product Name: Calcium Citrate
Chemical Names: Calcium citrate; Tricalcium dicitrate; Acicontral; TRICALCIUM CITRATE; 813-94-5; Citracal
Molecular Formula: (C6H6O7)2Ca3·4H2O or C12H10Ca3O14
Molecular Weight: 498.432 g/mol
IUPAC Name: tricalcium;2-hydroxypropane-1,2,3-tricarboxylate
CAS Number: 813-94-5
Physical Description: Fine white powder
Parent Compound: citric acid (CID 311)
Melting point: Decomposes
Boiling point: Decomposes
Molar mass: 498.4334 g/mol (anhydrous) , 570.4945 g/mol (tetrahydrate)
Appearance: White powder
Density: 1.63 g/cm3 (anhydrous) , 2.00 g/cm3 (tetrahydrate)
Solubility: Insoluble in alcohol
Uses: It is used as a flavoring agent, as an antioxidant in foods, and as a sequestrating agent.