Sodium sulfite

• Product NameSodium sulfite
  CAS No.7757-83-7
  Purity95%-98%
  Min Quantity10Metric Tons
  Price~
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  Molecular Structure

Detailed Description

Molecular Formular: Na2SO3
Molecule weight: 126.04
Appearance: White or light yellow crystalline powder
Quality standard: HG/T 2967-2000

Company standard
Item Index
Top-grade First grade Qualified product
Total content(as Na2SO3)% ≥97.0 ≥96.0 ≥93.0
Fe(as Fe)% ≤0.003 ≤0.005 ≤0.02
Water-insoluble % ≤0.02 ≤0.03 ≤0.05
Free alkali(as Na2Co3)% ≤0.10 ≤0.40 ≤0.80
Sulfate(as Na2SO4)% ≤2.0 -- --
Chloride(as NaCI) ≤0.10 -- --

Application:
1. Used as decolorizer in tannage and leather industry and plant fiber;
2. Used as reducing agent in industrial manufacture.
Packing: in white PP laminated bag with inner poly bag.
Net weight: 25 kg/bag, 50kg/bag.