Tetrasodium pyrophosphate, also known as sodium pyrophosphate or tetrasodium diphosphate, is a phosphate salt with the formula Na4O7P2 and the E-number E450(iii). In food and beverage production it acts as an emulsifying salt, sequestrant and buffering agent, helping to stabilise proteins, control acidity and improve texture in processed foods. Its phosphate category covers a range of functional roles, and it is often chosen where a firm, consistent structure is needed.
Manufacturers use tetrasodium pyrophosphate in processed meats, seafood, dairy analogues and other formulated products where protein binding and moisture retention matter. It is supplied as a white, water-soluble powder that dissolves readily, so it is typically added during mixing or brining. As an alkaline salt, it can raise pH, and it should be stored dry to prevent caking. EU Regulation 231/2012 sets the specification for its use as a food additive.
Also known as Sodium pyrophosphate, Tetrasodium diphosphate, Sodium diphosphate
| Appearance | White to off-white powder |
| Shelf life | 24 months, unopened |
| Storage | Cool, dry place |
| Test | Requirement |
|---|---|
| Assay | >=95% |
| Fluoride | <10mg/kg |
| Heavy metals | Per specification |
| 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 Tetrasodium 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 Tetrasodium Pyrophosphate include FSSC 22000, CNAS CoA. 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.