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Application
It is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
Molecular formula: Na4P2O7
Molecular Weight: 265.9
National Standard: GB25568-2010
CAS Number: 7722-88-5
Other Name: TSPP
INS.: E452(iii)
Properties
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3 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.
Package
Packing: 25 kgs bag,
Loading: 25 kgs on pallet: 10 MT/20’FCL; Un-palletized:17MT/20’FCL
Specifications
| NO | Item | Specifications |
| 1 | Appearance | white powder or granular |
| 2 | Assay (as Na4P2O7) %≥ | 96.5 |
| 3 | P2O5 %≥ | 51.5 |
| 4 | Ortho Phosphates | pass |
| 5 | PH Value | 9.9-10.7 |
| 6 | Water Insoluble matter % ≤ | 0.1 |
| 7 | Size (through 60mesh sieve) | 90 |
| 8 | Fluoride (as F) ≤ | 0.005 |
| 9 | Heavy Metals (as Pb) % ≤ | 0.001 |
| 10 | Arsenic (As)% ≤ | 0.0003 |
| 11 | Pb % ≤ | 0.0004 |
| 12 | L.O.I% ≤ | 0.5 |
Professional, efficient and meticulous, caring for human development.