Linear Formula: Na2SO3
CAS Number: 7757-83-7
Molecular Weight: 126.04
EC Number: 231-821-4
MDL number: MFCD00003503
UNSPSC Code: 12352302
PubChem Substance ID:
57652384
NACRES: NA.25
grade: reagent
grade
form: powder
solubility: H2O:
1 M at 20 °C, clear, colorless
Grade: reagent
grade
Quality Level: 200
product line: BioUltra
Assay: ≥98%
(RT)
Form: powder
Impurities: insoluble
matter, passes filter test
Loss: ≤0.1%
loss on drying, 20 °C (HV)
pH: 9.0-10.5
(25 °C, 1 M in H2O)
solubility: H2O:
1 M at 20 °C, clear, colorless
anion traces:
chloride (Cl-): ≤50 mg/kg
thiosulfate (S2O32-): ≤200 mg/kg
cation traces:
Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤200 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg
Absorption: cut-off
at 265 nm in H2O at 1 M
SMILES string: [Na+].[Na+].[O-]S([O-])=O
InChI: 1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
InChI key: GEHJYWRUCIMESM-UHFFFAOYSA-L
Application
- Tuning
Structural Characteristics of Corn Stover Through Ammonium and Sodium
Sulfite (ASS) Pretreatment for Enhanced Enzymatic Hydrolysis.: This
study demonstrates the effective use of sodium sulfite in pretreating
biomass to enhance its enzymatic breakdown, crucial for improving biofuel
production efficiency (Chen
X et al., 2024).
- A
Soy Protein-Based Film Based on Chemical Treatment and Microcrystalline
Cellulose Reinforcement Obtained from Corn Husk Byproducts.:
Highlights the application of sodium sulfite in the development of
biodegradable films, showcasing its potential in creating sustainable
materials in the food packaging industry (Zhang B et al., 2024).
- Sodium
Sulfite as a Novel Hypoxia Revulsant Involved in Hypoxic Regulation in
Escherichia coli.: Investigates sodium sulfite′s role as a hypoxia
revulsant, providing insights into its biochemical applications for
managing bacterial growth under low oxygen conditions, relevant for
biomedical research and microbial management (Ye Q et al., 2024).
- Modelling
energy-harvesting processes in primitive cells: Proton transport across
bilayers driven by the oxidation of sulfite.: Explores the potential
of sodium sulfite in facilitating proton transport across biological
membranes, which is crucial for understanding cellular energy mechanisms
and could lead to advancements in bioenergy and synthetic biology (Paula S et al.,
2024).
Other Notes
Cleaves disulfide bonds to form the S-sulfonate
derivative[1]; Inhibits gram positive bacteria in culture media;
