Sodium Metabisulphite, Sodium Pyrosulfite, Sodium Metabisulfite, SMBS
Chemical Formula: Na2S2O5
Cas No.: 7681-57-4
Description: It is white or slightly yellow crystalline powder in appearance.
Application:
In Industrial Fields
As a disinfectant. Sodium pyrosulfite has good sterilization and disinfection effects, and is widely used in medical, food processing and other fields.
As a bleach. Sodium metabisulfite can be combined with the chromophore in the dye to decolorize it, and it is used for bleaching in textile, paper, leather and other industries.
As a reducing agent. Sodium pyrosulfite can reduce metal ions such as silver and mercury, and is widely used in silver salt photography, electroplating and other fields.
As a medicine. The pharmaceutical industry is used for the purification of chloroform, phenylpropyl sulfone and benzaldehyde. Sodium metabisulfite can be used to treat skin diseases, digestive tract diseases, etc
In the rubber industry, it is used as a coagulant. In the printing and dyeing industry, it is used as a dechlorination agent for cotton cloth after bleaching, as a scouring aid for cotton cloth, and as a mordant for printing and dyeing. In the tanning industry, it is used for leather treatment, which can make the leather soft, plump, tough, waterproof, anti-folding, and wear-resistant. In the chemical industry, it is used to produce hydroxyvanillin, hydroxylamine hydrochloride, etc.
Item | Specification |
Na2S2O5 content | 97% min |
Arsenic ( As) | 0.0001% max |
Iron (Fe) | 0.0030% max |
Water insoluble | 0.02% max |
PH value | 4.0-4.8 |
Package: 25kg bags, 500kg bags, 1000kg bags, 1350kg bags
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