Na2O3S
126.05 g/mol
Industrial ChemicalDanger
SODIUM SULFITE
CAS7757-83-7EC231-821-4
Category
Industrial Chemical
Compound Class
Inorganic Salt
Primary Use
antioxidant and preservative
Sodium sulfite is an inorganic compound used commercially as an antioxidant and preservative. It is also employed in the wood pulping and refining processes to soften lignin.
antioxidant and preservativelignin softening agent in wood pulping
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing or supplying this compound?
List your inventory or post a purchase request
CAS 7757-83-7
Related Compounds
StrongSame Parent
Potassium sulfite
CAS10117-38-1
preservative and antioxidant in foods
ReferenceSame Category
Sodium chlorite
CAS7758-19-2
bleaching agent and disinfectant
ReferenceSame Category
Sodium tripolyphosphate
CAS7758-29-4
detergent builder and sequestrant
ReferenceSame Category
Cuprous chloride
CAS7758-89-6
precursor to copper oxychloride fungicide
ReferenceSame Category
Ferrous chloride
CAS7758-94-3
reducing agent and mordant
Referencestereoisomer of
Potassium hydrogen sulfite
CAS7773-03-7
Food preservative and antimicrobial agent
Referencestereoisomer of
Ammonium bisulfite
CAS10192-30-0
Chemical reagent
Referencestereoisomer of
Sodium hydrogen sulfite
CAS7631-90-5
Food preservative and disinfectant
Safety Reference
Danger
H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319Causes serious eye irritation
H318Causes serious eye damage
Identifiers
IUPAC Name
disodium;sulfite
InChIKey
GEHJYWRUCIMESM-UHFFFAOYSA-L
SMILES
[O-]S(=O)[O-].[Na+].[Na+]
Synonyms (30)
- E-221
- S-WAT
- Anhydrous sodium sulfite
- Anhydrous sodium sulphite
- Disodium sulfite
- Disodium sulfite (Na2SO3)
- Dried sodium sulfite
- Dried sodium sulfite (JP17)
- Exsiccated sodium sulfite
- INS NO.221
- Natrii sulphis
- Natrium sulfurosum
- Natriumsulfid
- Natriumsulfid [German]
- Natriumsulfit
- Natriumsulfit [German]
- Natrum sulphurosum
- SODIUM SULFITE
- SODIUM SULFITE [MART.]
- Sodium sulfite (NF)
- Sodium sulfite (Na2SO3)
- Sodium sulfite anhydrous
- Sodium sulfite, exsiccated
- Sodium sulphite
- Sodium sulphite anhydrous
- Sulftech
- Sulfurous acid, disodium salt
- Sulfurous acid, sodium salt