1.0 2010-04-08 22:10:40 UTC 2025-11-18 23:43:46 UTC FDB013351 Calcium diphosphate It is used in foods as a nutrient supplement and pH control agent Calcium diphosphate Calcium pyrophosphate Calcium pyrophosphate (Ca2P2O7) Dicalcium diphosphate Dicalcium pyrophosphate Diphosphoric acid, calcium salt Diphosphoric acid, calcium salt (1:2) Pyrophosphoric acid, calcium salt (1:2) Ca2O7P2 254.099 253.837107688 dicalcium (phosphonatooxy)phosphonate dicalcium diphosphate 7790-76-3 [Ca++].[Ca++].[O-]P([O-])(=O)OP([O-])([O-])=O InChI=1S/2Ca.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4 JUNWLZAGQLJVLR-UHFFFAOYSA-J belongs to the class of inorganic compounds known as alkaline earth 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 alkaline earth metal. Alkaline earth metal pyrophosphates Inorganic compounds Mixed metal/non-metal compounds Alkaline earth metal oxoanionic compounds Alkaline earth metal pyrophosphates Inorganic calcium salts Inorganic oxides Alkaline earth metal pyrophosphate Inorganic calcium salt Inorganic oxide Inorganic salt calcium phosphate logp -1.4 ChemAxon pka_strongest_acidic 1.7 ChemAxon iupac dicalcium (phosphonatooxy)phosphonate ChemAxon average_mass 254.099 ChemAxon mono_mass 253.837107688 ChemAxon smiles [Ca++].[Ca++].[O-]P([O-])(=O)OP([O-])([O-])=O ChemAxon formula Ca2O7P2 ChemAxon inchi InChI=1S/2Ca.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4 ChemAxon inchikey JUNWLZAGQLJVLR-UHFFFAOYSA-J ChemAxon polar_surface_area 135.61 ChemAxon refractivity 21.04 ChemAxon polarizability 9.03 ChemAxon rotatable_bond_count 2 ChemAxon acceptor_count 6 ChemAxon donor_count 0 ChemAxon physiological_charge -3 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 1329370 Specdb::MsMs 1329371 Specdb::MsMs 1329372 odorless