Packaging specification: 25kg/bag
Store in a cool and dry warehouse.

Application of sodium sulfite:
1. Used for trace analysis and determination of tellurium and niobium, preparation of developing solutions, and also as a reducing agent;
2. Used as a stabilizer for artificial fibers, fabric bleaching agent, photographic developer, dye bleaching deoxidizer, fragrance and dye reducing agent, papermaking lignin remover, etc;
3. Used as a common analytical reagent and photoresistor material;
4. As a deoxidizer and bleaching agent, the printing and dyeing industry is used for the cooking of various cotton fabrics, which can prevent local oxidation of cotton fibers and affect fiber strength, and improve the whiteness of the cooked fabrics.
5. The photosensitive industry uses it as a developer.
6. Organic industry is used as a reducing agent in the production of meta phenylenediamine, 2,5-dichloropyrazolone, anthraquinone-1-sulfonic acid, 1-aminoanthraquinone, sodium aminosalicylate, etc., which can prevent the oxidation of semi-finished products during the reaction process.
7. Used as a lignin removal agent in the paper industry.
8. The textile industry uses it as a stabilizer for synthetic fibers.
9. The electronics industry is used to manufacture photoresistors.
10. The water treatment industry is used for the treatment of electroplating wastewater and drinking water;
11. The food industry uses it as a bleaching agent, preservative, loosening agent, and antioxidant.
12. Used for preparing cellulose sulfite esters, sodium thiosulfate, bleached fabrics, etc., as well as reducing agents, dechlorination agents, etc;
13. The laboratory is used for preparing sulfur dioxide.