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Home > Products > Water Treatment & Cleaning > Sodium Metabisulfite (CAS No. 7681-57-4)

Sodium Metabisulfite (CAS No. 7681-57-4)

Sodium Metabisulfite (CAS No. 7681-57-4)

Payment Type: L/C,T/T,D/P
Incoterm: FOB,CFR,CIF
Min. Order: 20 Ton
Delivery Time: 7 Days

Basic Info

    Model No.: CAS 7681-57-4

Additional Info

    Packaging: in 25 Kg bags

    Productivity: 100000 MT/a

    Brand: Kylin Chemicals

    Transportation: Ocean,Land

    Place of Origin: China

    Supply Ability: 100000 MT/a

    Certificate: ISO 9001

Product Description

Sodium Metabisulfite


Sodium pyrosulfite; Disodium disulphite;

Disulfurous acid disodium salt; Pyrosulfurous acid disodium salt

Sodium Metabisulfite food grade

CAS No.: 7681-57-4

Molecular Weight: 190.10

Molecular Formula: Na2S2O5


  • industrial bleaching and reducing agent.
  • remove excess chlorine from drinking water.
  • photographic developing and fixing bath agent.


Appearance: White or light yellow crystalline powder

Purity (as Na2S2O5): ≥96.5%

Heavy Metals (as Pb): ≤0.005%

Iron (as Fe): ≤0.003%

Arsenic: ≤0.001%

Water insoluble: ≤0.05%


In cool and dry place without sunlight.

Sodium Metabisulfite CAS 7681-57-4

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Product Categories : Water Treatment & Cleaning

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