Calcium fortification
Used as a calcium source in qualifying foods, beverages, premixes and supplements.
Food grade ingredient · Citrate salt · INS 333(iii)
Food Grade Calcium Citrate
Calcium citrate is a calcium salt of citric acid used in suitable foods and supplements for calcium fortification, buffering and formulation support.
- CAS number
- 5785-44-4
- INS number
- 333(iii)
- Formula
- Ca3(C6H5O7)2·4H2O
- MOQ
- 500 kg
Reference assay97.5–100.5%
Standard packing25 kg bag
Container loading20 MT / 20' FCL
QualificationCOA and certificates on request
Direct product answer
What is food grade calcium citrate?
The supplied calcium citrate is identified as tetrahydrate Ca3(C6H5O7)2·4H2O, CAS 5785-44-4. Codex lists calcium citrate as INS 333(iii), while JECFA also records an anhydrous identity under a different CAS number.
The supplied commercial limits must be matched to the exact grade, intended food category and destination-market rules. A product name alone does not establish regulatory conformity.
Application screening
Common food grade Calcium Citrate applications
Confirm legal use, dosage, technical performance and sensory impact in the finished product.
Buffering systems
May support acidity and mineral balance in compatible formulations.
Chelation
Citrate can interact with selected mineral ions; validate the full formulation.
Emulsifying-salt systems
Evaluate suitability, solubility and texture in the actual product.
Nutrition premixes
Specify hydrate form, calcium basis, particle size and target dosage.
Tablets and powders
Assess flow, compression, dispersion and sensory effects.
Supplied technical data
Food grade Calcium Citrate reference specification
These values reproduce the supplied sheet. They are not a batch COA or universal standard.
| Test item | Specification |
|---|---|
| Calcium citrate content, dry basis | FCC-IV: 97.5–100.5%; USP24: 97.5–100.5% |
| Arsenic | FCC-IV/USP24: ≤0.0003% |
| Fluoride | FCC-IV/USP24: ≤0.003% |
| Acid-insoluble matter | FCC-IV/USP24: ≤0.2% |
| Lead | FCC-IV: ≤0.0002%; USP24: ≤0.0001% |
| Heavy metals, as Pb | FCC-IV: not stated; USP24: ≤0.002% |
| Loss on drying | FCC-IV: 10.0–14.0%; USP24: 10.0–13.3% |
| Residual moisture | FCC-IV: ≤0.003%; USP24: ≤0.0002% |
| Clarity | No complete limit supplied |
| Appearance | White powder or white crystalline powder |
Specification note: The attachment identifies the tetrahydrate CAS 5785-44-4, whereas the JECFA calcium citrate record lists CAS 813-94-5. Confirm hydration form, CAS, assay basis and the current reference standard before ordering.
Qualification support
Documents and evidence to request
Product documents
Request the current specification/TDS, SDS, methods and representative or batch COA.
Food qualification
Verify applicable HACCP, Kosher, Halal and ISO documents for the exact product and site.
Independent reference
Review the FAO/WHO JECFA calcium citrate record for identity context.
Storage and handling
Protect Calcium Citrate in storage
- EnvironmentStore sealed in a cool, dry, ventilated area away from heat and sunlight.
- MoistureProtect bags from rain, humidity, caking and contamination.
- ControlsFollow the current SDS and site hygiene procedures.
Buyer questions
Food grade Calcium Citrate FAQ
What is Calcium Citrate used for?
Calcium citrate is a calcium salt of citric acid used in suitable foods and supplements for calcium fortification, buffering and formulation support. Validate legal use and performance for the exact food.
What is the reference assay?
The supplied sheet states 97.5–100.5%. Confirm the signed specification and COA.
What are the packing and MOQ?
The reference packing is 25 kg per bag and the minimum order is 500 kg.
Which documents should be requested?
Request specification/TDS, SDS, COA and applicable food-quality certificates.
What information is needed for a quote?
Provide application, grade or hydrate form, specification, quantity, destination and delivery date.
Last reviewed 2026-07-20 by Bespring Chemical technical and export team.
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Specification-led sourcing
Request a Calcium Citrate quote
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