How is TSPP made? Home News Industry News
How is TSPP made?
TSPP can be produced by the neutralization of phosphoric acid with sodium hydroxide with mol proportions of 2:1.

Food grade TSPP exists as two forms, and follows the corresponding chemical formula:

TSPP Anhydrous: Na4P2O7
TSPP Decahydrate: Na4P2O7 · 10H2O
Specification
Other names    
Tetrasodium disphosphate
Tetrasodium phosphate
Sodium pyrophosphate
CAS number    7722-88-5
Appearance    white powder or granular powder
Solubility    Soluble in water, insoluble in ethanol

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