Bisulfite

HCID 104748CAS 15181-46-1

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Basic information

Standard SMILES: O=S([O-])O
InChIKey: LSNNMFCWUKXFEE-UHFFFAOYSA-M
Molecular formula: HO3S-
Average molar mass: 81.07 g/mol
Monoisotopic mass: 80.96518847

Overview

Bisulphites, aqueous solutions are light colored liquids. They can cause severe burns to skin, eyes and mucous membranes. The material is noncombustible. If available, obtain the technical name of the material from the shipping papers and contact CHEMTREC, 800-424-9300 for specific response information.

Names & identifiers

Preferred name: Bisulfite
IUPAC: hydrogen sulfite
English name: sulfurous acid
Molecular formula: H2O3S
Molecular weight: 81.07

Names & synonyms

Hydrogen sulfiteBisulfitehydrogensulfiteBisulphiteHydrosulfite anion15181-46-1HSO3-Hydrogen sulfite(1-)OJ9787WBLUCHEBI:17137RefChem:147076Sulfite, hydrogen

Show more names

HYDROGENSULPHITE

sulfonic acidbisulfite ionSULFUROUS ACID, ION(1-)Sulfite LYESulfite (HSO3)-Sulfite (HSO3 1-)Sulfonsaeuresulphonic acid

Database identifiers

CAS: 15181-46-1
PubChem CID: 104748
DTXSID: DTXSID5075311
ChEMBL: CHEMBL1794637
ChEBI: CHEBI:17137
UNII: OJ9787WBLU
Nikkaji: J338.736D

Properties

Computed structural properties

XLogP: -1
Topological polar surface area: 79.6 Å²
Hydrogen bond donors: 1
Hydrogen bond acceptors: 4
Rotatable bonds: 0
Heavy atoms: 4
Formal charge: -1
Complexity: 24.8

Experimental & physicochemical properties

Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR

Physical Description · 1 item

Physicochemical properties

CAS DataBase Reference: 15181 · 15181-46-1
Indirect Additives used in Food Contact Substances: BISULFITE
EWG's Food Scores: 1 · 1
FDA UNII: 9787 WBLU · OJ9787WBLU
EPA Substance Registry System: Sulfite, hydrogen (15181-46-1)

Safety & regulation

Hazard information

DOT LabelCorrosive

Fire HazardsExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Health HazardsExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Reactive GroupSulfite and Thiosulfate Salts

Reactivity AlertsStrong Reducing Agent

Reactivity ProfileWhen heated to decomposition or on contact with mineral acids it emits highly toxic fumes of sulfur dioxide gas [Sax, 9th ed., 1996, p. 2949].

Safety & protection

Fire FightingExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

First AidExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Nonfire Spill ResponseExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Isolation and EvacuationExcerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Personal Protective Equipment (PPE)Excerpt from ERG Guide 154 [Substances - Toxic and/or Corrosive (Non-Combustible)]:

Chemistry & industry

Applications · 1 item

General DescriptionBisulphites, aqueous solutions are light colored liquids. They can cause severe burns to skin, eyes and mucous membranes. The material is noncombustible. If available, obtain the technical name of the material from the shipping papers and contact CHEMTREC, 800-424-9300 for specific response information.