loading
Basic info
Model NA. | Sodium Sulfite/ Sodium Sulphite | EINECS | 231-821-4 |
CAS No. | 7757-83-7 | Appearance | Crystal or Powder |
Classification | Sulfate Salt | Grade Standard | Tech Grade |
Application | Paper Pulps,Textiles,Mining,Waste Water Treatment | MF | Na2so3 |
Water Solubility | Easily Soluble in Water | HS.CODE | 2832100000 |
Solubility | Easily Soluble in Water | Specification | 90% min - 98% min |
Density | 2.63G/Cm³ | Transport Package | 25kg Woven Bag/ 1.25mt Bag |
Certification | CCIC, CIQ, RoHS, ISO | Storage Condition | Keep in Cool, Dry, and Ventilated Place |
Trademark | ZHD | Origin | China |
Molecular Weight | 126.043 | Application | Mainly Used as a Stabilizer for Artificial Fibers, |
Melting point | 500 °C | Water solubility | 23 g/100ml (20 C) |
Specification
Food Grade | Tech Grade | Tech Grade | |
Na2SO3 | 97% min | 96% min | 93% min |
Free Alkali | 0.1% max | 0.4% max | 0.4% max |
Iron | 0.002% max | 0.005% max | 0.005% max |
Water Insoluble Matter | 0.02% max | 0.05% max | 0.05% max |
Sodium Sulfate(Na2SO4) | 2.5% max | — | — |
NACL | 0.1% max | — | — |
Product Description
Sodium sulfite is a common inorganic compound, typically appearing as white crystals or powder and is highly soluble in water. Its core chemical property is strong reducing power, enabling it to react effectively with substances like oxygen. Consequently, it is primarily used industrially as an excellent reducing agent and antioxidant.
Leveraging this property, it finds extensive applications across multiple sectors: in the paper industry as a cooking agent to remove lignin; in textiles as a dechlorinating agent and bleaching agent; and in food processing as a preservative and bleaching agent for products like dried fruits and candied fruits. Additionally, it serves as a crucial chemical in certain chemical manufacturing processes and water treatment applications.
Package
Package: 25kg neutral woven bags, 1000kg or 1250kg jumbo bags
or as client's request.
Application
1. Bleaching agent: Used for bleaching pulp and textiles.
2.Water treatment: Employed as a dechlorinating and deoxygenating agent in wastewater treatment.
3.Chemical synthesis: Serves as a reducing agent and sulfonating agent in the production of dyes, pharmaceuticals, and other chemicals.
4.Mining industry: Functions as a frothing agent for mineral separation and enrichment.
5.Leather processing: Acts as an auxiliary chemical in leather tanning.
6.Food industry: Used as a preservative and antioxidant in food processing, such as dried fruits and molasses.
