Molekula
tri-Calcium phosphate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Tri-Calcium phosphate is a calcium salt of phosphoric acid used in pharmaceuticals, dietary supplements, and as a food additive. Industrially, it is also used in fertilizer and phosphoric acid production, in glass and ceramics manufacturing, as an anticaking agent, and in animal feeds. It serves as a source of calcium and phosphorus in nutritional formulations. Available with CAS number 7758-87-4, molecular formula Ca3(PO4)2, and molecular weight 310.18 g/mol. Stable at ambient storage conditions. Molekula supplies tri-Calcium phosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 g — £39.80 per pack ex VAT · £47.76 inc. VAT
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1 kg — £65.00 per pack ex VAT · £78.00 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
| Heavy metals | ≤0.001% |
| Identification | Conforms to reference |
| Chloride (Cl-) | ≤0.002% |
| Assay | ≥99.0% |
| Clarity | Passes Test |
| Iron (Fe) | ≤0.005% |
| Insoluble: in HCL | ≤0.01% |
| Arsenic (As) | ≤3ppm |
| Sulphates (SO4)(2-) | ≤0.02% |
| Nitrate (NO3-) | ≤0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White amorphous powder |
| Odour | Odorless |
| Melting Point | 1670 °C |
| Density | 3.14 g/cm³ |
| Solubility (other solvents) | Practically insoluble in water; insoluble in ethanol, soluble in dilute hydrochloric and nitric acid |
| Refractive Index | 1.629 |
Source: PubChem CID 24456 (HSDB, EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 46511956 |
| CAS Number | 7758-87-4 |
| IUPAC Name | tricalcium diphosphate |
| EC Number | 231-840-8 |
| Molecular Formula | Ca3(PO4)2 |
| Molecular Weight | 310.18 |
| Exact Mass | 309.7946 |
| SMILES | [O-]P(=O)([O-])[O-].[O-]P(=O)([O-])[O-].[Ca+2].[Ca+2].[Ca+2] |
| InChIKey | QORWJWZARLRLPR-UHFFFAOYSA-H |
| InChI | InChI=1S/3Ca.2H3O4P/c;;;2*1-5(2,3)4/h;;;2*(H3,1,2,3,4)/q3*+2;;/p-6 |
| PubChem CID | 24456 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28352600 |
| Tariff Code | 2835260000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Bonarka
- Calcigenol simple
- Calcium orthophosphate
- Calcium phosphate, tribasic
- Calcium tertiary phosphate
- Phosphoric acid, calcium salt (2:3)
- Synthos
- Tertiary calcium phosphate
- Tricalcium diphosphate
- Tricalcium orthophosphate
Frequently asked questions
What is tri-Calcium phosphate used for?
Tri-Calcium phosphate is commonly used as a dietary supplement, a food additive for calcium enrichment, and in pharmaceutical formulations as a filler or excipient.
What is the chemical formula and molecular weight of tri-Calcium phosphate?
The chemical formula is Ca3(PO4)2, and the molecular weight is 310.18 g/mol.
How should tri-Calcium phosphate be stored?
It should be stored at ambient temperature, protected from moisture and contamination.
What grade of tri-Calcium phosphate does Molekula supply?
Molekula supplies tri-Calcium phosphate in reagent grade, suitable for laboratory and industrial applications.
Can Molekula supply tri-Calcium phosphate in bulk?
Yes, Molekula can supply tri-Calcium phosphate in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with a purchase of tri-Calcium phosphate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.