1.0 2010-04-08 22:11:50 UTC 2025-11-19 00:55:05 UTC FDB015435 Sodium nitrite Colour fixative and preservative for fish and meat products Sodium nitrite, with chemical formula NaNO2, is used as a color fixative and preservative in meats and fish. When pure, it is a white to slight yellowish crystalline powder. Sodium nitrite is found in fishes and animal foods. E250 Erinitrit Nitrite, sodium Nitrous acid, sodium salt Nitrous acid, sodium salt (1:1) Nitrous acid, sodium salt, 8CI NNaO2 68.9953 68.982672924 sodium nitrite sodium nitrite 7632-00-0 [Na+].[O-]N=O InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 LPXPTNMVRIOKMN-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 sodium salts Alkali metal nitrite Inorganic nitrite Inorganic oxide Inorganic salt Inorganic sodium salt inorganic sodium salt nitrite salt melting_point Mp 271° logp 0.17 ChemAxon pka_strongest_acidic 3.32 ChemAxon pka_strongest_basic -3.5 ChemAxon iupac sodium nitrite ChemAxon average_mass 68.9953 ChemAxon mono_mass 68.982672924 ChemAxon smiles [Na+].[O-]N=O ChemAxon formula NNaO2 ChemAxon inchi InChI=1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 ChemAxon inchikey LPXPTNMVRIOKMN-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 1286230 Specdb::MsMs 1286231 Specdb::MsMs 1286232 Specdb::CMs 7356 Fishes Unknown generic