Sodium metabisulfite

Name: Sodium metabisulfite
Grade: Laboratory
Application: Synthesis, Pharma
Synonyms: Sodium metabisulfite
CAS Number: 7681-57-4  EC Number: 231-673-0 Molar Mass: 190.10 g mol-1   Chemical Formula: Na2S2O5
Download: Datasheet | CoA | SDS
Chemical formula: Na2S2O5 Molar Mass: 190.10 g mol-1  
Appearance:  White to pale yellow solid Density: 1.48 g/cm3   (20 °C)
Solub. in water: 640 g/l  (20 °C) Melting point: 170°C (decompousition)
Boiling point:  N/A Flash point: N/A
Storage temp.: Below  +30 °C Cautions: Corrosive, irritant
R: 31-36/37 S: 26
HS-No.: 2832100 EC-Index-No.:  231-673-0

 

 

 

 

 

 

 

 

 

Technical Specifications

Assay of SO2 65 – 67.4 %
Identification (Sodium) Conforms
Identification  (Sulfite) Conforms
Chloride (Cl) 0.05 %
Limit of thiosulfate 0.05 %
Iron 20 ppm

 

 

 

 

 

 

Order code

Ordering code 1 kg 2.5 kg 5 kg 10 kg 20 kg
P.E. 429.05.01000.02 429.05.05000.02 429.05.10000.02
Glass

 

Warning signs

Hazard Symbol
 

 

 

 

 

 

Download

Download

  • Datasheet
  • CoA
  • SDS

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