1.0 2010-04-08 22:11:49 UTC 2025-11-19 00:54:50 UTC FDB015408 Potassium nitrite (KNO2) Preservative for red meat and poultry products. Potassium nitrite (KNO2) is found in animal foods. E249 Nitrous acid potassium salt, 8CI Nitrous acid, potassium salt Nitrous acid, potassium salt (1:1) Potassium nitrite Potassium nitrite (1:1) Potassium nitrite [UN1488] [Oxidizer] KNO2 85.1038 84.95661011 potassium nitrite potassium nitrite 7758-09-0 [K+].[O-]N=O InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1 BXNHTSHTPBPRFX-UHFFFAOYSA-M belongs to the class of inorganic compounds known as alkali metal nitrites. These are inorganic compounds in which the largest oxoanion is nitrite, and in which the heaviest atom not in an oxoanion is an alkali metal. Alkali metal nitrites Inorganic compounds Mixed metal/non-metal compounds Alkali metal oxoanionic compounds Alkali metal nitrites Inorganic nitrites Inorganic oxides Inorganic salts Alkali metal nitrite Inorganic nitrite Inorganic oxide Inorganic salt melting_point Mp 440° logp 0.17 ChemAxon pka_strongest_acidic 3.32 ChemAxon pka_strongest_basic -3.5 ChemAxon iupac potassium nitrite ChemAxon average_mass 85.1038 ChemAxon mono_mass 84.95661011 ChemAxon smiles [K+].[O-]N=O ChemAxon formula KNO2 ChemAxon inchi InChI=1S/K.HNO2/c;2-1-3/h;(H,2,3)/q+1;/p-1 ChemAxon inchikey BXNHTSHTPBPRFX-UHFFFAOYSA-M ChemAxon polar_surface_area 52.49 ChemAxon refractivity 7.6 ChemAxon polarizability 2.44 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 3 ChemAxon donor_count 0 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 1314895 Specdb::MsMs 1314896 Specdb::MsMs 1314897 Specdb::CMs 8815