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Specifications
Tetra Sodium Pyrophosphate, TSPP
Standard: FCC
Our advantage: Competitive price with high quality
Chemical Name: Tetra Sodium Pyrophosphate
Synonyms: Tetra sodium pyrophosphate
Molecular formula: Na4P2O7
Standard executed: GB25557-2010
Properties:
White powder; Soluble in water but insoluble in ethanol; Relative density 2.45g/cm3and melting point 890° C; Deliquescent in the open air. Its aqueous solution shows weak alkalinity and is stable at 70 ° C but will be hydrolyzed into di-sodium phosphate when boiled.
Sodium Pyrophosphate 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.
Packing and storage:
In 25Kg /50kgs net bags. It must be stored in places well ventilated and dry
| Quality index | HG2929-99 | FCC,1996 |
| Assay≥% | 95.0 | 93.0-100.5 |
| As≤% | 0.0003 | 0.0003 |
| Fluoride≤% | 0.005 | 0.005 |
| Heavy Metal≤% | 0.0015 | 0.0015 |
| Water insoluble matter≤% | 1.0 | 1.0 |
| Pb≤% | -- | 0.0002 |
| PH value | 4.0 ±0.5 | -- |
| Phosphorus pentoxide | 63.0-64.0 | 63.0-64.0 |