Tricalcium Citrate
Calcium Tricitrate
- CAS
- 813-94-5
- EC
- 212-391-7
- Food Code
- E333
- Sectors
- Food & Nutrition, Nutraceuticals & Supplements, Pharma & Healthcare
Tricalcium Citrate, also known as calcium citrate tribasic, is a white, odorless powder with the formula C12H10Ca3O14 and a molecular weight of 498.43 g/mol. This Food Grade calcium salt of citric acid is slightly soluble in water yet dissolves readily in acids, and decomposes above 200°C.
It is one of the most bioavailable calcium fortification sources, absorbed efficiently even without gastric acid, which makes it the preferred calcium form in dietary supplements and for sensitive consumer groups.
Food producers use it (E 333) as a firming agent, acidity regulator, and calcium enrichment in dairy alternatives, juices, and bakery products. Produced by neutralizing citric acid with calcium hydroxide or carbonate, it is offered in anhydrous and tetrahydrate forms.
SoleChem, an ISO 9001:2015 certified chemical supplier based in Türkiye, delivers Tricalcium Citrate (CAS 813-94-5) to customers in more than 40 countries.
Tricalcium Citrate
Applications
Used as a nutrient supplement in dietary products for calcium fortification; food additive as sequestrant, buffer, antioxidant, firming agent, and acidity regulator in beverages, dairy, and baked goods; in pharmaceuticals for antacids and excipients; in cosmetics as pH adjuster; in animal feed for bone health; in water treatment for softening.
Safety & Risks
Low toxicity, GRAS by FDA; may cause mild eye/skin/respiratory irritation (H315, H319, H335). Avoid breathing dust (P261), use protective gloves/eye gear (P280), rinse if contacted (P302+P352, P305+P351+P338). Stable under ambient conditions; incompatible with strong acids.
Packaging
Typically in 25kg or 50kg multi-wall paper bags with PE liners or fiber drums to prevent moisture; store tightly closed in cool, dry, ventilated areas; non-hazardous for transport.