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Synonyms: tetrasodium pyrophosphate, sodium diphosphate, TSPP
Molecular formula: Na4P2O7
Molecular Weight: 265.9
Standard executed: HG2923-1999 (Food Grade)
CAS Number: 7722-88-5
Properties:Sodium pyrophosphate anhydrous is white powder form; Easy to absorb moisture and deliquesce, but insoluble in ethanol; Relative density 2.45g/cm3 and melting point 890 ; Deliquescent in the open air. Its aqueous solution shows weak alkalinity but will be hydrolyzed into di-sodium phosphate when boiled .
Sodium pyrophosphate 10H2O is white needle crystals and it soluble in water, insoluble in alcohol, aqueous solution is alkaline. Easy to weathered in dry air.
Specifications:
Item Food grade
Appearance White powder or granule
Assay (Na4P2O7) % ≥96.5
Iron (Fe) % /
Heavy metal (as Pb) % /
Arsenic (As) % ≤0.0003
Lead (Pb) % ≤0.0002
Fluoride (F) % ≤0.001
pH (1% sol.) 9.9-10.7
Water insoluble % ≤0.1
Loss on ignition % ≤0.5
Usage: It is used as buffering agent, emulsifier, nutrition ingredients and quality improver.
Packing and Storage:In PP+PE bags of 25kgs net each, we can provide packages according to customer’s requirement .Store at a cool, dry and well ventilated place.
Harzards Identification & Classifications: N/A
Shelf life: 12 months.
Support: Sodium pyrophosphate material safety datasheet (MSDS).
