1.0 2010-04-08 22:10:40 UTC 2025-11-18 23:43:53 UTC FDB013359 Disodium phosphate It is used in foods as a sequestrant, emulsifier, buffering agent, absorbent, pH control agent, protein modifier, source of alkalinity, stabiliser and nutrient supplement Disodium hydrogen phosphate (Na2HPO4) is a sodium salt of phosphoric acid. It is a white powder that is highly hygroscopic and water soluble. It is therefore used commercially as an anti-caking additive in powdered products. It is also known as disodium hydrogen orthophosphate, sodium hydrogen phosphate or sodium phosphate dibasic. It is commercially available in both the hydrated and anhydrous forms. Acetest Di-sodium hydrogen phosphate dihydrate Di-sodium hydrogen phosphate dodecahydrate Dibasic sodium phosphate Disodium acid orthophosphate Disodium acid phosphate Disodium hydrogen phosphate Disodium hydrogen phosphate dihydrate Disodium hydrogen phosphate dodecahydrate Disodium hydrogen phosphate, anhydrous Disodium hydrogenorthophosphate Disodium hydrogenphosphate Disodium hydrophosphate Disodium monohydrogen phosphate Disodium monohydrogenphosphate Disodium orthophosphate Disodium phosphate, anhydrous Disodium phosphoric acid DSP Exsiccated sodium phosphate Fleet enema Na2HPO4 Natriumphosphat Phosphate of soda Phosphoric acid, disodium salt Phosphoric acid, sodium salt (1:2) Sec-sodium phosphate Secondary sodium phosphate Soda phosphate Sodium acid phosphate, anhydrous Sodium hydrogen phosphate Sodium hydrogenphosphate Sodium monohydrogen phosphate Sodium monohydrogen phosphate (2:1:1) Sodium orthophosphate, secondary Sodium phosphate (Na2HPO4) Sodium phosphate (NaHPO4) Sodium phosphate dibasic Sodium phosphate dibasic dihydrate Sodium phosphate dibasic dodecahydrate Sodium phosphate dibasic, USAN Sodium phosphate, dibasic Sodium phosphate, dibasic (anhydrous) Sodium phosphate, exsiccated HNa2O4P 141.9588 141.940784382 disodium hydrogen phosphate disodium hydrogen phosphate 7558-79-4 [Na+].[Na+].OP([O-])([O-])=O InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2 BNIILDVGGAEEIG-UHFFFAOYSA-L belongs to the class of inorganic compounds known as alkali metal phosphates. These are inorganic compounds in which the largest oxoanion is phosphate, and in which the heaviest atom not in an oxoanion is an alkali metal. Alkali metal phosphates Inorganic compounds Mixed metal/non-metal compounds Alkali metal oxoanionic compounds Alkali metal phosphates Inorganic oxides Inorganic sodium salts Alkali metal phosphate Inorganic oxide Inorganic salt Inorganic sodium salt sodium phosphate melting_point 250 ºC decomp. logp -1 ChemAxon pka_strongest_acidic 1.8 ChemAxon iupac disodium hydrogen phosphate ChemAxon average_mass 141.9588 ChemAxon mono_mass 141.940784382 ChemAxon smiles [Na+].[Na+].OP([O-])([O-])=O ChemAxon formula HNa2O4P ChemAxon inchi InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2 ChemAxon inchikey BNIILDVGGAEEIG-UHFFFAOYSA-L ChemAxon polar_surface_area 83.42 ChemAxon refractivity 12.41 ChemAxon polarizability 5.23 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 1 ChemAxon physiological_charge -2 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 1306420 Specdb::MsMs 1306421 Specdb::MsMs 1306422 Specdb::MsMs 1420930 Specdb::MsMs 1420931 Specdb::MsMs 1420932 34683 odorless