Tetrasodium pyrophosphate

Na4O7P2CAS 7722-88-5265.90 g/mol

O−PO−OOPO−O−ONa+Na+Na+Na+
Phosphate

Properties

Molecular formula
Na4O7P2
Molar mass
265.90 g/mol
Exact mass
265.8710 Da
Density
2.53 g/mL
Melting point
988 °C
logP
-2.33Crippen estimate
Polar surface area
124.3 Ų
H-bond donors / acceptors
4 / 3
Rotatable bonds
2

Hazards

No GHS classification is on file for this compound. That is not evidence that it is harmless.

Identifiers

CAS number
7722-88-5
SMILES
[O-]P([O-])(=O)OP([O-])([O-])=O.[Na+].[Na+].[Na+].[Na+]
InChI

The InChI we hold for this record describes the parent acid and the metal separately rather than the salt above, so it is not shown here.

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

22 names · show all
  • SPP
  • Diphosphoric acid, sodium salt (1:4)
  • Pyrophosphoric acid, tetrasodium salt
  • Diphosphoric acid, tetrasodium salt
  • Anhydrous tetrasodium pyrophosphate
  • Phosphotex
  • Tetrasodium diphosphate
  • TSPP
  • Victor TSPP
  • Sodium pyrophosphate (Na4P2O7)
  • Sodium pyrophosphate
  • Sodium diphosphate (Na4P2O7)
  • Sodium phosphate (Na4P2O7)
  • Tetrasodium pyrophosphate (Na4P2O7)
  • Tetrasodium diphosphate (Na4P2O7)
  • Sodium diphosphate
  • Accoline 126
  • SPP (phosphate)
  • Thermphos pyro E 450
  • Sodium phosphorus oxide (Na4P2O7)
  • Phosphomix 110
  • Nankarin S 1

Work with Tetrasodium pyrophosphate

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Elsewhere