food grade Sodium sulfite

• Product Namefood grade Sodium sulfite
  CAS No.7757-83-7
  Purity95%-98%
  Min QuantityMetric Tons
  Price210~360
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  Molecular Structure

Detailed Description

Molecular Formular: Na2SO3
Molecule weight: 126.04
Appearance: White or light yellow crystalline powder
Quality standard: GB/1894-2005

Company standard
Item Index
Total content(as Na2SO3)% ≥97.0
Fe(as Fe)% ≤0.01
Free alkali(as Na2Co3)% ≤0.60
Heavy metals(as Pb )% ≤0.001
As(As)% ≤0.0002
Clarity Passed

National standard
Item Index
Total content(as Na2SO3)% ≥96.0
Fe(as Fe)% ≤0.01
Free alkali(as Na2Co3)% ≤0.60
Heavy metals(as Pb )% ≤0.001
As(As)% ≤0.0002
Clarity Passed

Application:
Used as preservative, decolorizer, bulking agent in food processing in case of being oxidated;
Used as antichlor and decolorization in printing and dyeing industry in the boiling process of all kinds of baffeta, which will prevent the baffeta fiber being oxidated partly and in which case the intensity of the fiber could be badly influenced.
Used as eikonogen in photographic industry;
Used as metaphenylene diamine in organic industry;
Used as reducing agent in the manufacture of aminosalicylic acid;
Used as man-made fiber and stabilizer in textile industry;
Also applied in paper making, electronics, water treatment etc.
Packing: in white PP laminated bag with inner poly bag.
Net weight: 25 kg/bag, 50kg/bag.