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Tetrasodium pyrophosphate, also known as TSPP, is a sodium phosphate derivative with the chemical formula Na₄P₂O₇. It is a white, crystalline powder that is highly soluble in water. Tetrasodium pyrophosphate has various applications, primarily in the food industry and as a detergent additive.
| Property | Specification |
|---|---|
| Chemical Formula | Na₄P₂O₇ |
| CAS Number | 7722-88-5 |
| Molecular Weight | 265.90 g/mol |
| Appearance | White Crystalline Powder |
| Purity | 95% min |
| Solubility | Soluble in water |
| pH (1% Solution) | 10.0 – 10.7 |
| Loss on Drying | 0.5% max |
| Heavy Metals (as Pb) | 0.001% max |
| Insoluble Matter | 0.1% max |