1.0 2010-04-08 22:08:58 UTC 2025-11-18 23:18:35 UTC FDB010118 Potassium bisulfite It is used as a food additive . Monopotassium sulfite Potassium acid sulfite Potassium hydrogen sulfite Potassium hydrogen sulphite Potassium sulfite (KHSO3) Potassium sulfite, hydrogen Sulfurous acid, monopotassium salt Sulfurous acid, potassium salt (1:1) KO3S 119.161 118.920521417 potassium sulfite potassium sulfite 7773-03-7 [K+].[O-]S([O-])=O InChI=1S/K.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2 DJEHXEMURTVAOE-UHFFFAOYSA-L belongs to the class of inorganic compounds known as alkali metal sulfites. These are inorganic compounds in which the largest oxoanion is sulfite, and in which the heaviest atom not in an oxoanion is an alkali metal. Alkali metal sulfites Inorganic compounds Mixed metal/non-metal compounds Alkali metal oxoanionic compounds Alkali metal sulfites Inorganic oxides Inorganic salts Alkali metal sulfite Inorganic oxide Inorganic salt logp -1.2 ChemAxon pka_strongest_acidic -3.7 ChemAxon iupac potassium sulfite ChemAxon average_mass 119.161 ChemAxon mono_mass 118.920521417 ChemAxon smiles [K+].[O-]S([O-])=O ChemAxon formula KO3S ChemAxon inchi InChI=1S/K.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+1;/p-2 ChemAxon inchikey DJEHXEMURTVAOE-UHFFFAOYSA-L ChemAxon polar_surface_area 63.19 ChemAxon refractivity 10.08 ChemAxon polarizability 5.1 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 3 ChemAxon donor_count 0 ChemAxon physiological_charge -1 ChemAxon formal_charge -1 ChemAxon Specdb::MsMs 1338016 Specdb::MsMs 1338017 Specdb::MsMs 1338018