INTRODUCTION
Tetrasodium pyrophosphate (TSPP) anhydrous is a white, crystalline or granular inorganic compound, soluble in water but insoluble in alcohol. TSPP is widely used in food, industrial, and cleaning applications due to its sequestrant, dispersing, buffering, and emulsifying properties.
MANUFACTURE
TSPP anhydrous is produced through the thermal dehydration of hydrated forms of TSPP or by direct high-temperature processing of disodium phosphate.
| Synonyms | Sodium pyrophosphate Tetrasodium diphosphate |
| CAS no. | 7722-88-5 |
| EINECS no. | 231-767-1 |
| Molecular formula | Na₄P₂O₇ |
| Molecular weight | 266 |
| Structure |  |
APPLICATIONS
| Food Industry: |
| Used as an emulsifier, texturizer, and thickening agent in processed meats, dairy products, and seafood. |
| Acts as a chelating agent, preventing the precipitation of calcium and magnesium ions. |
| Helps retain moisture in food products. |
| Detergents & Cleaning Agents: |
| Commonly found in household and industrial detergents due to its ability to soften water and enhance cleaning efficiency. |
| Used in toothpaste formulations to prevent tartar buildup. |
| Industrial Applications: |
| Used in ceramics, water treatment, and as a dispersing agent in paints and coatings. |
| Plays a role in metal finishing and electroplating processes. |
SPECIFICATIONS
| Test | Unit | Specification |
|---|---|---|
| Appearance | – | White powder |
| pH (1% solution) | – | 10.0 – 10.7 |
| Assay (as Na4P2O7) | % | Min 94.0 |
| Moisture (at 110 °C) | % | Max 0.50 |
| Water Insoluble | % | Max 0.05 |
| P2O5 | % | Min 53.0 |
| Iron (as Fe) | % | Max 0.005 |
| Sulphates (as SO4) | % | Max 0.01 |
| Arsenic (as As) | % | Max 0.0003 |
| Heavy Metal (as Pb) | % | Max 0.003 |
| Cadmium (as Cd) | % | Max 0.0003 |
| Chloride (as Cl) | % | Max 0.05 |
| Lead | % | Max 0.0005 |
| Fluoride (as F) | % | Max 0.004 |
PACKING
25 kg bag/drum
STORAGE
Store in airtight container in a cool, dry place
REACH status
Not registered
ExSyn offers TSPP on commercial scales and welcomes enquiries. Our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please contact us.
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