Sodium Tripolyphosphate (STPP)
| Chemical formula | Na5P3O10 |
|---|---|
| Molecular weight | 367,86 g/mol |
| Appearance | white powder or granules |
| Designation | E 451 (i) |
| CAS No. | 7758-29-4 |
| EINECS No. | 231-838-7 |
| P2O5 | 56,0 - 59,0 % |
| Na5P3O10 | min 85,0 % |
| % | max 0,001 |
| Arsenic (As) | max 1 ppm |
| Lead (Pb) | max 1 ppm |
| Cadmium (Cd) | max 1 ppm |
| Mercury (Hg) | max 1 ppm |
| Fluorides (F) | max 0,001 % |
| Loss on drying | 1,5 - 3,0 % |
| Water-insoluble substances | max 0,1 % |
| pH (1% solution) at 25°C | 9,1 - 10,3 |
| Shelf life | 2 years from date of production. |
| Form | Powder |
Food industry. Packaging Paper bags with polyethylene liner or multi-layer polyethylene bags of 25 kg, wooden collective pallet, bags of 25 kg in quantities of 40 pieces, shrink-wrapped. Storage In original packaging, in dry, clean and ventilated storage areas suitable for storing food products. In sealed packaging protecting the raw material from contamination and moisture.
