Calcium Citrate USP

Calcium Citrate is the calcium salt of citric acid commonly used as a food additive. It is an odorless white powder, practically insoluble in cold water.


Calcium Citrate is an ingredient of some dietary supplements. It is used as a food additive known by the E number E333. It is used as a preservative and as a flavoring agent in foods.


Chemical Name: Calcium Citrate
Synonym: Tricalcium Citrate
Mol. Formula: Ca3(C6H5O7)2.4H2O
Mol. Weight: 570.5 g/mol
CAS No.: 5785-44-4


General Specifications

Test Specification…USP
Appearance A white, odorless crystalline/granular powder
Solubility Very slightly soluble in water. Insoluble in ethanol.
Loss on drying Between 10% and 13.3%
Arsenic Maximum 3 micro-gm per gm
Fluoride Maximum 0.003%
Acid insoluble substances Maximum 0.2%
Lead Maximum 0.001%
Heavy metals Maximum 20ppm
Organic volatile impurities Passes test
Residual solvents Passes test
Assay Not less than 97.5% and not more than 100.5%


Shelf life, Storage and Packing

It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.


GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

    Product Enquiry