Millipore Sigma Vibrant Logo
Attention: We have moved. EMD Millipore products are no longer available for purchase on emdmillipore.com.Learn More

SX0785 Sodium Sulfite

View Products on Sigmaaldrich.com
SX0785
Purchase on Sigma-Aldrich

Overview

Replacement Information

Key Specifications Table

CAS #EC NumberChemical FormulaMolar Mass
7757-83-7231-821-4Na₂SO₃126.04 g/mol

Products

Catalog NumberPackaging Qty/Pack
SX0785-1 Plastic bottle 500 g
SX0785-3 Plastic bottle 2.5 kg
SX0785-5 Plastic drum 12 kg
Description
Catalogue NumberSX0785
Alternate Names
  • Sodium Sulfite
References
Product Information
CAS number7757-83-7
EC number231-821-4
Chemical formulaNa₂SO₃
Molar Mass126.04 g/mol
Quality LevelMQ200
Applications
Applicationanhydrous, Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS
Key Applications General Chemistry
Biological Information
Physicochemical Information
Melting Point>500 °C (decomposition)
pH value9.0 - 10.5 (126 g/l, H₂O, 25 °C)
Solubility220 g/l
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Disposal6
Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E.
Safety Information
Product Usage Statements
Storage and Shipping Information
StorageStore at room temperature.
Packaging Information
Transport Information
Supplemental Information
Specifications
Assay (iodometric)98.0% min
Chloride (Cl)0.02% max
Free acidTo pass test
Heavy Metals (by ICP-OES)0.001% max
Insoluble matter0.005% max
Iron (Fe)0.001% max
Titrable free base0.03meq/g max
Global Trade Item Number
Catalog Number GTIN
SX0785-1 04061839444621
SX0785-3 04061839444638
SX0785-5 04061839444645

Documentation

Sodium Sulfite SDS

Title

Safety Data Sheet (SDS) 

Sodium Sulfite Certificates of Analysis

TitleLot Number
SX0785