Basic information
- Standard SMILES
O=S([O-])[O-].[Mg+2]- InChIKey
JESHZQPNPCJVNG-UHFFFAOYSA-L- Molecular formula
- MgO3S
- Average molar mass
- 104.37 g/mol
- Monoisotopic mass
- 103.94185656
Names & identifiers
- Preferred name
- Magnesium sulfite
- IUPAC
- magnesium sulfite
Names & synonyms
Magnesium sulfiteMagnesium sulphiteSulfurous acid, magnesium salt (1:1)UNII-792J6K230WEINECS 231-825-6792J6K230WEC 231-825-6MAGNESIUM SULFITE [MI]DTXSID50884418RefChem:155270DTXCID2010238597757-88-2
Show more names
magnesium;sulfiteMagnesiumsulfitSCHEMBL162894NS00081668Q2396092
Database identifiers
- CAS
7757-88-2- PubChem CID
- 3014583
- DTXSID
DTXSID50884418- UNII
- 792J6K230W
- EC Number
- 231-825-6
- Nikkaji
- J43.895B
Properties
Computed structural properties
- Topological polar surface area
- 82.4 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 4
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 18.8
Experimental & physicochemical properties
Chemical ClassesOther Classes -> Sulfites
Physical DescriptionHexahydrate: Colorless or white solid; [Merck Index] Solid; [ECHA REACH Registrations]
Safety & regulation
GHS classification
GHS ClassificationNot Classified
Hazard information
Regulatory InformationStatus: Active Update: 30-11-2010 https://echa.europa.eu/registration-dossier/-/registered-dossier/7214
Hazards SummaryExists as the tri- and hexahydrate; Slowly oxidized by air to the sulfate; [Merck Index] See SULFITES.
Hazard Classes and CategoriesNot Classified
Chemistry & industry
Uses & manufacturing
Uses
Used to make paper pulp (as solution in sulfurous acid); [Merck Index]
Pulp and Paper Processing [Category: Industry]
General Manufacturing InformationSulfurous acid, magnesium salt (1:1): ACTIVE
Related reactions
10 records
Linked notes
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