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CAS No.: 7758-29-4
Formula: Na5P3O10
Molecular weight: 367.86
H. S code: 2835311000
Appearance: White powder, free flowing.
Packing: 25/50 kg woven bags with plastic liner.
Application: The alkaline phosphates offer detergency activity in combination with the properties of sequestration, dispersion and buffering ability. STPP is used in water softening, industrial cleaners, food uses, detergent, emulsifier of oil and grease, peptizing agent, deflocculating agent in oil well, sequester in cotton boiling.
Storage: The product shall be stored in a clean, dry & cool area protected from exposure to moisture, foreign odors and other contaminants. Due to its strong hygroscopic properties, it shall be stored in a dry & cool area.
Packing: Totally packed in 25kg paper bags net each with white or yellow color, or made to customer's request.
20mt STPP can be loaded in one container with pallets shrunk or without pallets.
Specification:
| Property | Specification |
| Purity | 95.0% min |
| P2O5 | 57.0% min |
| Water insoluble | 0.05% max |
| Whiteness | 90.0% min |
| Fluoride as F | 0.003% max |
| Chloride as Cl | 0.03% max |
| Sulphate as SO4 | 0.4% max |
| Heavy metal as Pb | 0.001% max |
| Arsenic as As | 3 ppm max |
| pH value | 9.5 - 10.0 |