Product description:
Product name:Tetra Sodium Pyrophosphate 96.5%(TSPP)
Molecular Formula:Na4P2O7
CAS No.: 7722-88-5
EINECS No.: 231-767-1
Product Characteristics:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45 and melting point 890 ; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 but will be hydrolyzed into di-sodium phosphate when boiled .
Product Technical Data:
| Specifications | Industrial Grade | FoodGrade |
| Assay (as Na4P2O7 )%≥ | 96.5 | 96.5 |
| P2O5 %≥ | 51.5 | 51.5 |
| Ortho Phosphates | Pass | Pass |
| PH Value | 9.9-10.7 | 9.9-10.7 |
| Water Insoluble matter % ≤ | 0.2 | 0.2 |
| Size (through 60mesh sieve) | 90% Min. | 90% |
| L.O.I. % ≤ | 0.5 | |
| (As F)%≤ | 0.005 | |
| (As As)%≤ | 0.0003 |
Product Application:
Applied in industries of detergents as detergent auxiliary, paper production to bleach and electroplating; In food industry it is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
Product Packing and storage:
Packed in 25 Kg, 50 Kg or 1000 Kg net bags. It must be stored in places well ventilated and dry.