Calcium Citrate is used in the food industry as a food additive as it is used as a preservative. It bears E 333 number. It is used in water cooling field. It is also used to prepare other citrate salts and enters in the composition of some medical preparations to reinforce calcium content such as toothpastes.
Calcium Citrate is obtained naturally as an intermediate compound during the isolation of citric acid from fermentation processes in industrial citric acid preparations.