Sodium Sulfite Anhydrous CAS 7757-83-7

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  • Appearance: White powder
  • Purity: 99. 0%min
  • Stock: In stock
  • Sample: Available
  • Zhishang Chemical: Sodium Sulfite Anhydrous Supplier & Manufacturer

Basic Info of Sodium Sulfite Anhydrous

What is Sodium Sulfite Anhydrous?

Sodium sulfite anhydrous is a not natural substance. It is white granular powder at room temperature level, with sulfur dioxide odor, steady when dry and conscious moisture. It is soluble in water and also glycerol, insoluble in ethanol, as well as the liquid remedy is alkaline. Its liquid option is alkaline to base test paper as well as phenolphthalein. It reacts with acid to create poisonous sulfur dioxide gas. The pH of 1% aqueous service is 8.3 ~ 9.4, as well as it has solid reducibility. It is disintegrated right into sodium sulfide as well as sodium sulfate when heated, and gradually oxidized right into sodium sulfate when put airborne. In nature, there are 3 forms of anhydrous sodium sulfite, salt sulfite heptahydrate as well as sodium sulfite decahydrate, of which anhydrous sodium sulfite is the most difficult to be oxidized.

Sodium sulfite anhydrous(Na2SO3), as a soluble sodium salt of sulfite, has the homes of bleaching, desulfurization and dechlorination, and is commonly used in numerous areas. Because of its bleaching activity, it is primarily utilized in the pulp as well as paper sector. It can be used as a great additive to help keep the fresh look of top quality items. Furthermore, salt sulfite is a component of lots of medications, which can properly preserve the efficiency as well as security of medications. It can also be made use of as a deoxidizer for water therapy, flue gas desulfurization, designer preservation, and so on.

Sodium Sulfite Anhydrous Uses

  1. Salt sulfite can be utilized for the micro-analytical decision of tellurium as well as niobium; utilized as a basic logical reagent; used in the laboratory to prepare sulfur dioxide; perfume and also dye reducing representative; made use of in the preparation of cellulose sulfite, sodium thiosulfate, preservatives, dechlorination Wait.
  2. Sodium sulfite anhydrous in printing and also dyeing industry is used as deoxidizer as well as whitening agent for searching different cotton textiles, which can protect against regional oxidation of cotton fibers and also influence fiber toughness, as well as boost the brightness of scouring products.
  3. Sodium sulfite anhydrous in the organic industry is made use of as a minimizing agent for the manufacturing of m-phenylenediamine, 2,5-dichloropyrazolone, anthraquinone-1-sulfonic acid, 1-aminoanthraquinone, salt aminosalicylate, etc, which can prevent the reaction Oxidation of semi-finished items at the same time.
  4. Sodium sulfite anhydrous can be utilized as programmer, prep work of cellulose sulfite, prep work of salt thiosulfate, chemical for dried out fruit and meat, deoxidizer in printing and also dyeing industry, and also as minimizing chemical reagent, made use of in chemical industry and In lab manufacturing as well as synthesis.
  5. The paper industry is made use of as a lignin cleaner. The textile sector is used as a stabilizer for manufactured fibers. The electronics sector is utilized to make photoresistors. The water treatment sector is used for the treatment of electroplating wastewater and also alcohol consumption water.

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Application of Sodium Sulfite Anhydrous

Anhydrous sodium sulfite is utilized as an establishing protective representative in the photographic industry; it is made use of to bleach fabrics in fabrics; it is used as a calcium eliminator in the tanning sector; it is utilized as a preservative in the food sector, as well as it is primarily utilized as a reducing agent in the manufacturing of pharmaceutical preparations. Examples of its application are as adheres to:

Preparation of Sodium Sulfite Anhydrous


  1. Sodium sulfite – PubChem
  2. CN201910010047.9 A kind of method for simply producing anhydrous sodium sulfite as a pharmaceutical excipient

Sodium Sulfite Anhydrous Supplier and Manufacturer

As a sodium sulfite anhydrous supplier and manufacturer with a strict standard product quality system certificate, Zhishang Chemical has long been providing the best sodium sulfite anhydrous raw materials to customers all over the world.

Over the years, relying on professional team experience and customer-centric team concept to meet customer needs in a timely manner, our company enjoys a high reputation in the world. At present, our company has served more than 6,000 customers and has established long-term cooperative relations with customers from many countries.

If you have a demand for sodium sulfite anhydrous and related products, please contact our service staff Zhishang Chemical – White directly, and we will provide you with high-quality products at the best price.

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