1.0 2010-04-08 22:10:40 UTC 2025-11-18 23:43:59 UTC FDB013366 Potassium phosphate (K3PO4) It is used in food processing as a source of alkalinity, buffering agent, emulsifier, nutrient, protein modifier and stabiliser Potassium orthophosphate (K3PO4) Potassium phosphate (XK) Tripotassium phosphate, 9CI, 8CI K3O4P 212.2663 211.844540583 tripotassium phosphate tripotassium phosphate 7778-53-2 [K+].[K+].[K+].[O-]P([O-])([O-])=O InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3 LWIHDJKSTIGBAC-UHFFFAOYSA-K 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 salts Alkali metal phosphate Inorganic oxide Inorganic salt logp -1 ChemAxon pka_strongest_acidic 1.8 ChemAxon iupac tripotassium phosphate ChemAxon average_mass 212.2663 ChemAxon mono_mass 211.844540583 ChemAxon smiles [K+].[K+].[K+].[O-]P([O-])([O-])=O ChemAxon formula K3O4P ChemAxon inchi InChI=1S/3K.H3O4P/c;;;1-5(2,3)4/h;;;(H3,1,2,3,4)/q3*+1;/p-3 ChemAxon inchikey LWIHDJKSTIGBAC-UHFFFAOYSA-K ChemAxon polar_surface_area 86.25 ChemAxon refractivity 11.29 ChemAxon polarizability 4.93 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 4 ChemAxon donor_count 0 ChemAxon physiological_charge -2 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 1243144 Specdb::MsMs 1243145 Specdb::MsMs 1243146 odorless