Sodium pyrosulfate CAS 13870-29-6
Chemical name: Sodium pyrosulfat
Synonymous names:disulfuric acid;SODIUM DISULFATE;disodium disulfate
CAS No:13870-29-6
Molecular formula:Na2O7S2
Molecular weight:222.11
EINECS No:237-625-5
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Structural formula:
Product Description:
Items |
Specifications |
Appearance |
White powder |
Assay |
95.8% MIN |
Water insoluble |
0.00% |
Chloride |
5ppm |
Calcium phosphate |
5ppm |
Ca Mg |
48ppm |
Iron |
8ppm |
Heavy metals |
5ppm |
Arsenic |
0.5ppm |
Silicic acid and ammonia precipitation |
0.01% |
Conclusion |
The results meet the company standards |
Properties and Usage:
Sodium pyrosulfate (CAS 13870-29-6) is a colorless crystal or granule with reducing and bleaching properties. It is mainly used in food, beverage, chemical treatment and water treatment.
1. Food industry
In food processing, sodium pyrosulfate is used as a high-efficiency preservative and bleaching agent to effectively inhibit the growth of bacteria and mold and extend the shelf life of food. It is often used in the production of dried fruits, vegetables, juices and wines to ensure food safety and freshness.
2. Beverage and wine production
In the production of wine and beer, sodium pyrosulfate is used to remove oxygen and prevent oxidation, thereby improving the stability and shelf life of the product. At the same time, it controls the growth of microorganisms during fermentation and ensures the quality of beverages.
3. Chemical industry
As an important reducing agent and bleaching agent, sodium pyrosulfate is often used in the treatment of dyes, leather and paper. Its reducing properties enable it to change the color of chemicals or remove unnecessary pigments, improving the quality and appearance of the final product.
4. Water treatment
Sodium pyrosulfate is used as a dechlorinating agent to effectively remove free chlorine in water, protect water treatment systems and pipelines, reduce corrosion risks, and extend the service life of equipment.
5. Pharmaceutical industry
Sodium pyrosulfate is used as a reducing agent and antioxidant in the production of certain drugs to help stabilize drug formulations and improve the safety and efficacy of drugs.
6. Photographic industry
In traditional photography, sodium pyrosulfate is used in developer and fixer to remove unexposed silver salts, fix photo images, and ensure the clarity and durability of photos.
Storage conditions: Keep away from fire and heat sources during storage, and the storage conditions should be kept dry and well ventilated.
Packing: This product is packed in 25kg bags, and it can also be customized according to customers' requirements