Buying calcium pyrophosphate (CAS 35405-51-7) for food, oral-care or nutrition use means matching the grade to the application and verifying every FCC specification item on the COA. This guide walks through the parameters and supplier questions.
1. The FCC Specification Sheet
| Parameter | Value | Why it matters |
|---|---|---|
| Appearance | White, tasteless, free-flowing powder | Handling and blendability |
| Assay (CaO basis), % Ca2P2O7 | 96% min | Active content |
| Loss on ignition (800 °C) | 1.00% max | Moisture/hydration control |
| Heavy metals (as Pb) | 15 ppm max | Food safety |
| Fluoride | 50 ppm max | FCC/pharmacopoeia limit |
| Arsenic (As) | 3 ppm max | Food safety |
| Lead | 2 ppm max | Food safety |
| On 200 mesh | 1% max | Coarse fraction control |
| On 325 mesh | 2% max | Fineness for tablets/oral care |
Result: according with FCC.
2. What a Complete COA Should Show
- Assay result with method; loss on ignition.
- Heavy metals, fluoride, arsenic and lead – measured values.
- Particle-size distribution (200/325 mesh).
- Batch number, production date and FCC compliance statement.
3. Packaging, Storage and Handling
- 25 kg multi-wall bags with PE liner, or bulk as agreed.
- Store sealed, cool and dry away from acids and moisture.
- Use dust control measures when handling large quantities.
4. FAQ
Can I get a sample for baking trials?
Yes – trial quantities are available; contact us with your application and target mesh.
Do you supply other mesh grades?
Particle size can be adjusted to the application (e.g. fine grades for oral care, standard grades for bakery).
5. References and Further Reading
- Food Chemicals Codex (FCC) monograph, calcium pyrophosphate.
- Supplier COA and MSDS for the specific grade.
This article is published for industrial and technical reference by PolyblueChem. Verify against the supplier’s COA and applicable food regulation.
See our calcium pyrophosphate chemistry guide and the bakery and fortification guide. PolyblueChem supplies calcium pyrophosphate (CAS 35405-51-7) – contact us for specifications and quotations.