1.02010-04-08 22:11:49 UTC2018-05-29 01:18:42 UTCFDB015398Sodium disulfiteFood preservative; sanitising agent for food containers and fermentation equipment
Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium (metabisulfite). It is used as a disinfectant, antioxidant and preservative agent. Disodium disulfiteDisodium disulphiteDisulfurous acid disodium salt, 9CIDisulfurous acid, sodium salt (1:2)E223Pyrosulfurous acid disodium salt, 8CISodium bisulfite anhydrousSodium disulfate(IV)Sodium metabisulfite, USANSodium metabisulphiteSodium pyrosulfite (Na2S2O5)Na2O5S2190.107189.89825384disodium (sulfinatooxy)sulfinatedisodium sulfinatooxysulfinate7681-57-4[Na+].[Na+].[O-]S(=O)OS([O-])=OInChI=1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2LDTLADDKFLAYJA-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 sulfitesInorganic compoundsMixed metal/non-metal compoundsAlkali metal oxoanionic compoundsAlkali metal sulfitesInorganic oxidesInorganic sodium saltsAlkali metal sulfiteInorganic oxideInorganic saltInorganic sodium saltlogp-1.3pka_strongest_acidic-4.3iupacdisodium (sulfinatooxy)sulfinateaverage_mass190.107mono_mass189.89825384smiles[Na+].[Na+].[O-]S(=O)OS([O-])=OformulaNa2O5S2inchiInChI=1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2inchikeyLDTLADDKFLAYJA-UHFFFAOYSA-Lpolar_surface_area89.49refractivity18.63polarizability9.27rotatable_bond_count2acceptor_count4donor_count0physiological_charge-2formal_charge0Specdb::MsMs1244089Specdb::MsMs1244090Specdb::MsMs1244091