Sodium Hexametaphosphate, also known as E452(i), is a phosphate salt with the formula Na6O18P6. In food and beverage production it acts as a sequestrant, binding metal ions that would otherwise catalyse oxidation or destabilise emulsions, and it helps control pH and improve water retention. Its category, phosphate, covers similar salts used for these functions. Common names include hexasodium hexametaphosphate, hexasodium metaphosphate and natrium hexametaphosphat.
Manufacturers use it in processed meats, seafood, dairy and beverages where ion control and texture matter. It is supplied as a white powder or granules, freely soluble in water, and is typically dissolved before addition. It is hygroscopic and can hydrolyse in solution, so keep it dry and sealed. EU Regulation 231/2012 sets its specification. Handle as a fine dust, using appropriate containment and personal protection.
Also known as Hexasodium hexametaphosphate, Hexasodium metaphosphate, Natrium hexametaphosphat
| Appearance | White to off-white powder |
| Shelf life | 24 months, unopened |
| Storage | Cool, dry place |
| Test | Requirement |
|---|---|
| Assay | >=65% P2O5 |
| Heavy metals | Per specification |
| Fluoride | <10mg/kg |
| Water insolubles | Per specification |
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 Hexametaphosphate 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 Hexametaphosphate include FSSC 22000, CNAS CoA, Food Grade declaration. 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.