| CAS No.: | 7758-29-4 |
|---|---|
| Formula: | Na5p3o10 |
| EINECS: | 231-838-7 |
| Purity: | 95% Min |
| Type: | Sodium Tripolyphosphate |
| Grade Standard: | Food Grade |
| Samples: |
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| Customization: |
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Audited Supplier Sodium tripolyphosphate is an inorganic compound with the chemical formula Na5P3O10. It is an amorphous water-soluble linear polyphosphate. It is often used in food as a moisture retention agent, quality improver, pH regulator, and metal chelating agent.
Sodium tripolyphosphate has the functions of chelating, suspending, dispersing, peptizing, emulsifying, pH buffering, etc. It can be used as the main auxiliary agent of synthetic detergent, industrial water softener, pretanning agent for tanning, dyeing auxiliary agent, organic synthesis catalyst , pharmaceutical industry dispersants and food additives, etc. In addition to exporting STPP, domestic STPP consumption is mainly concentrated in the detergent industry, food, ceramics, etc.
| Item | Specification |
| Appearance | White granule or powder |
| Sodium tripolyphosphate |
≥ 95% |
| Total phosphate ( As P2O5) | ≥56.0%, ≤58.0% |
| PH ( 1% solution) | ≥9.5, ≤ 10 |
| Loss on drying (105C 1h) | ≤ 0.7% |
| Fluoride content | ≤ 10PPM |
| As content | ≤ 1PPM |
| Lead content | ≤ 1PPM |
| Performance density | ≥0.7g/ml, ≤0.8g/ml |
| Heavy metal content (As Pb) | ≤ 10mg/kg |
| 20 mesh pass | ≥98% |
| 80 mesh pass | ≥45% |
| Whiteness | ≥85% |
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