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Sodium metabisulfite

Catalog No. 71930 Name Sigma Aldrich
CAS Number 7681-57-4 Website http://www.sigmaaldrich.com
M. F. Na2O5S2 Telephone 1-800-521-8956
M. W. 190.10654 Fax
Purity ≥95% (RT) Email
Storage Chembase ID: 129535

SYNONYMS

Title
偏重亚硫酸钠
IUPAC name
disodium sulfinatosulfonate
IUPAC Traditional name
disodium metabisulfite
Synonyms
焦亚磷酸钠
Sodium disulfite
Sodium pyrosulfite
偏二亚硫酸钠

DATABASE IDS

MDL Number MFCD00167602
EC Number 231-673-0
CAS Number 7681-57-4

PROPERTIES

Antion Traces chloride (Cl-): ≤100 mg/kg
Cation Traces Ca: ≤50 mg/kg
Cation Traces Cd: ≤50 mg/kg
Cation Traces Co: ≤50 mg/kg
Cation Traces Cu: ≤50 mg/kg
Cation Traces Fe: ≤50 mg/kg
Cation Traces K: ≤200 mg/kg
Cation Traces Ni: ≤50 mg/kg
Cation Traces Pb: ≤50 mg/kg
Cation Traces Zn: ≤50 mg/kg
Grade purum p.a.
Linear Formula Na2S2O5
Purity ≥95% (RT)
Melting Point >300 °C(lit.)
GHS Pictograms GHS05
GHS Pictograms GHS07
GHS Signal Word Danger
GHS Hazard statements H302-H318
European Hazard Symbols Harmful Harmful (Xn)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements P280-P305 + P351 + P338
Risk Statements 22-31-41
RTECS UX8225000
Safety Statements 26-39-46
Supplemental Hazard Statements Contact with acids liberates toxic gas.
German water hazard class 1

DETAILS

REFERENCES