Sodium pyrophosphate, also known as tetrasodium pyrophosphate or E450(iii), is a phosphate salt with the formula Na4O7P2. In food and beverage production it functions as an emulsifier, stabiliser, and pH buffer. It helps control acidity, prevents fat separation, and improves texture in processed foods. As a sequestrant, it binds metal ions that can cause rancidity or discolouration, supporting product consistency and shelf life.
Manufacturers use sodium pyrophosphate in meat and poultry processing, seafood, processed cheese, and baked goods. It is supplied as a white powder or granules and is highly soluble in water, making it easy to incorporate into liquid systems. It is hygroscopic and should be stored in a cool, dry place to prevent caking. Formulators should handle it with appropriate dust control measures, as fine particles can become airborne.
Also known as Tetrasodium pyrophosphate, Tetrasodium diphosphate, Sodium diphosphate
| Appearance | White to off-white powder |
| Shelf life | 24 months, unopened |
| Storage | Cool, dry place |
| Test | Requirement |
|---|---|
| Assay | >=95% Na4P2O7 |
| Heavy metals | <10mg/kg |
| Fluoride | <10mg/kg |
| Arsenic | <1mg/kg |
QC requirements shown apply to every destination or to the EU. Lot-specific results (assay, moisture, pH, microbiological and heavy-metal testing) vary by production batch and are supplied on the Certificate of Analysis for each shipment.
Yes. Every shipment of Sodium Pyrophosphate comes with a batch-specific Certificate of Analysis. If you need further documents, such as an allergen or GMO declaration or a certificate of origin, tell us at the enquiry stage and we will confirm what is available.
Storage: Cool, dry place. Shelf life: 24 months, unopened.
The certifications associated with Sodium Pyrophosphate include FSSC 22000, CNAS CoA, Food-grade decl. Tell us which certification your audit requires and we will confirm what can be provided before you order.
In most cases, yes. Tell us your target volume and application on the contact form and we'll confirm sample availability along with indicative pricing and lead time.