Sodium Trimetaphosphate (STMP) is a cyclic phosphate used as a starch crosslinking agent, food-grade coating material and sequestrant in food and industrial applications.We supply bulk Sodium Trimetaphosphate sourced from leading China manufacturers, available in powder and granular forms for food and beverage manufacturers worldwide. Our Sodium Trimetaphosphate is widely used in starch crosslinking agent, food processing, processed meat curing accelerator, seafood phosphate coating and water treatment agent.
Sodium Trimetaphosphate (Na₃P₃O₉, STMP) is a cyclic trimer of sodium metaphosphate. Its primary food use is as a starch crosslinking agent (approved for modified food starches).
This improves starch stability against heat, acid and shear. Also used as a sequestrant, a curing accelerator in processed meats, and as a phosphate coating for seafood moisture retention. In industrial applications it serves as a water treatment agent and ceramic glaze ingredient.
Grades / Types Available: Food Grade
| Item | Specification |
|---|---|
| Appearance | White powder or granules |
| Assay (as Na₃P₃O₉) | ≥ 95.0% |
| P₂O₅ Content | 57-60% |
| pH (1% solution) | 6.0-7.0 |
| Water Insolubles | ≤ 0.1% |
| Heavy Metals (as Pb) | ≤ 10 mg/kg |
| Arsenic | ≤ 3 mg/kg |
| Fluoride | ≤ 10 mg/kg |
| Purity (Food Grade) | 99% |
| Heavy Metal (As Pb) % ≤ | 0.001% |
| Arsenic % ≤ | 0.0003% |
| Fluoride % ≤ | 0.001% |
| Water Insoluble % ≤ | 0.005% |
Our MOQ for bulk food/feed ingredient is generally 500 kg. We also support mixed containers — combine Sodium Trimetaphosphate with other food ingredients in one shipment to save on freight.
We provide free samples (100–500g) for quality testing before you place a bulk order. The buyer covers shipping costs only. Samples are typically dispatched within 2–3 business days.
Standard lead time is 7–15 days after order confirmation and payment. For stock items, delivery can be faster. We will confirm the exact timeline before you place the order.
You will receive the original COA (Certificate of Analysis), COO (Certificate of Origin), MSDS, TDS, and relevant certifications directly from the manufacturer. We guarantee full document authenticity and traceability.
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Whether you're sourcing bulk ingredients or mix container, contact our team for pricing, free samples, and technical support.