1.02010-04-08 22:10:41 UTC2018-05-29 01:04:49 UTCFDB013382Sodium diphosphate (Na4(P2O7))It is used in foods as a buffering agent, pH control agent, alkalinity source, dispersing agent, protein modifier, coagulant and sequestrantAnhydrous tetrasodium pyrophosphateDiphosphoric acid, sodium salt (1:4)Diphosphoric acid, tetrasodium saltPhosphotexPyrophosphoric acid tetrasodium saltSodium diphosphate tetrabasicSodium pyrophosphate tetrabasicTetrasodium diphosphate, 9CITetrasodium pyrophosphate, 8CITetrasodium pyrophosphate, anhydrideTetrasodium pyrophosphate, anhydrousNa4O7P2265.9024265.871004078tetrasodium (phosphonatooxy)phosphonatetetrasodium diphosphate7722-88-5[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=OInChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4FQENQNTWSFEDLI-UHFFFAOYSA-J belongs to the class of inorganic compounds known as alkali metal pyrophosphates. These are inorganic compounds in which the largest oxoanion is pyrophosphate, and in which the heaviest atom not in an oxoanion is an alkali metal.Alkali metal pyrophosphatesInorganic compoundsMixed metal/non-metal compoundsAlkali metal oxoanionic compoundsAlkali metal pyrophosphatesInorganic oxidesInorganic sodium saltsAlkali metal pyrophosphateInorganic oxideInorganic saltInorganic sodium saltinorganic sodium saltmelting_pointMp 993° (985°)logp-1.4pka_strongest_acidic1.7iupactetrasodium (phosphonatooxy)phosphonateaverage_mass265.9024mono_mass265.871004078smiles[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=OformulaNa4O7P2inchiInChI=1S/4Na.H4O7P2/c;;;;1-8(2,3)7-9(4,5)6/h;;;;(H2,1,2,3)(H2,4,5,6)/q4*+1;/p-4inchikeyFQENQNTWSFEDLI-UHFFFAOYSA-Jpolar_surface_area135.61refractivity21.04polarizability9.03rotatable_bond_count2acceptor_count6donor_count0physiological_charge-3formal_charge0odorless