Other names: Sodium triphosphate, STP, TPP
CAS number: 7758-29-4
Molecular formula: Na5P3O10
Characteristics:
Sodium tripolyphosphate (STPP) is an inorganic compound. It is white odorless granule or powder. Specification:
| Item |
Standard |
| Standard |
GB/T 9983-2004 |
| Appearance |
White powder |
| Whiteness (WG) |
≥90 |
| N5P3O10 (%) |
≥94 |
| P2O5 (%) |
≤57 |
| Insoluble in water (%) |
≤0.1 |
| Iron (Fe) (%) |
≤0.007 |
| pH (1% aq. solution) |
9.2-10 |
| Bulk Density (g/ml) |
0.66-0.99 |
Packing:
In 25 kg net woven bags.
Use:
Sodium tripolyphosphate is used widely in ceramic, mine, petroleum and paper manufacturing industries. The most important application is as water softener sequestering agent and deflocculating agent in detergent industry.
MSDS: Available when required. |
