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Sodium Metabisulfite Na2S2O5 For Chemical Industrial

Sodium metabisulfite (Na2S2O5) is an inorganic compound in the form of white or yellow crystals with a strong pungent odor. Very soluble in water, its aqueous solution is acidic. On contact with strong acids, sodium metabisulfite liberates sulfur dioxide and forms the corresponding salt. However, it should be noted that this compound is not suitable for long-term storage, because it will be oxidized to sodium sulfate when exposed to air.

Product Detail

Product Tags

Technical Index

Items Unit Value
Content Na2S2O5 %,≥ 96-98
Fe %,≤ 0.005
As %,≤ 0.0001
HEAVY METAL(Pb) %,≤ 0.0005


Sodium metabisulfite used in the production of insurance powder, sulfadimethylpyrimidine, anethine, caprolactam, etc.; For the purification of chloroform, phenylpropanone and benzaldehyde. Used in the photographic industry as a fixing agent ingredient; The spice industry is used to produce vanillin; Used as a preservative in brewing industry; Rubber coagulant and cotton bleaching dechlorination agent; Organic intermediates; Used for printing and dyeing, leather; Used as a reducing agent; Used as electroplating industry, oilfield wastewater treatment and used as mineral processing agent in mines; It is used as a preservative, bleach and loose agent in food processing.

This multifunctional compound has a wide range of applications in various industries. In the field of production, sodium metabisulfite is used in the manufacturing process of hydrosulfite, sulfamethazine, metamizine, caprolactam, etc. Furthermore, it also plays a vital role in the purification of chloroform, phenylpropanol, and benzaldehyde, making it an important ingredient in the pharmaceutical and chemical industries.

The uses of sodium metabisulfite are not limited to manufacturing and purification. In the photographic industry, it is used as a fixer component, ensuring the longevity of photographs. Furthermore, it is used in the perfume industry to produce vanillin, which enhances the fragrance of various products. The brewing industry benefits from sodium metabisulfite as a preservative, ensuring the quality and longevity of beverages. Its applications also include rubber coagulation, dechlorination of cotton after bleaching, organic intermediates, printing and dyeing, leather tanning, reducing agents, electroplating industry, oilfield wastewater treatment, mine beneficiation agents, etc.

The food processing industry relies on the versatility of sodium metabisulfite as a preservative, bleach and loosening agent. Its effectiveness in maintaining freshness and ensuring food quality has made it a valuable component in the culinary world.

To sum up, sodium metabisulfite has become an essential compound in various industries because of its wide range of uses and excellent performance. It can be used in various processes such as manufacturing, purification, preservation, etc., demonstrating its adaptability and effectiveness. Whether restoring photographs, enhancing fragrance, decontaminating chemicals or preserving food, sodium metabisulfite proves to be an invaluable asset in any industry.

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