Disodium pyrophosphate

H2Na2O7P2CAS 7758-16-9221.94 g/mol

O−PO−OOPOOHOHNa+Na+
Phosphate

Properties

Molecular formula
H2Na2O7P2
Molar mass
221.94 g/mol
Exact mass
221.9071 Da
logP
-1.57Crippen 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
7758-16-9
SMILES
[O-]P([O-])(=O)OP(=O)(O)O.[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.

Names and synonyms

16 names · show all
  • Diphosphoric acid, sodium salt (1:2)
  • Pyrophosphoric acid, disodium salt
  • Diphosphoric acid, disodium salt
  • Sodium pyrophosphate (Na2H2P2O7)
  • Disodium dihydrogen pyrophosphate
  • Dihydrogen disodium pyrophosphate
  • Disodium acid pyrophosphate
  • Disodium dihydrogen diphosphate
  • Disodium diphosphate
  • Disodium pyrophosphate (Na2H2P2O7)
  • Sodium hydrogen phosphate (Na2H2P2O7)
  • Disodium dihydrogen diphosphate (Na2H2P2O7)
  • SAPP-RD 1
  • SAPP
  • SAPP 40
  • E 450i

Work with Disodium pyrophosphate

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Elsewhere