Tetrasodium pyrophosphate | 7722-88-5

Additional information

CAS ID

7722-88-5

IUPAC Name

tetrasodium;phosphonato phosphate

Molecular Formula

Na4O7P2

Molecular Weight

SMILES

[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O

Description

24403

Synonym : tetrasodium pyrophosphate, sodium pyrophosphate, tspp, phosphotex, tetrasodium diphosphate, diphosphoric acid, tetrasodium salt, sodium diphosphate, victor tspp, natrium pyrophosphat, caswell no. 847

Linear FormulaNa4P2O7
Merck Index14,9240
Solubility InformationSoluble in water,with slow hydrolysis to sodium orthophosphateSoluble in water; Insoluble in ethyl alcohol.
Formula Weight265.9
Physical FormGranular
GradeTechnical
Density2.534 g/mL
SensitivityHygroscopic
ColorWhite
Melting Point988°C
Chemical Name or MaterialSodium pyrophosphate, Anhydrous

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