Sodium Sulfite
- Product Name:
- Sodium Sulfite
- CAS No.:
- 7757-83-7
- Molecular Formula:
- Na₂SO₃
- Molecular Weight:
- 126.04 g/mol
- Appearance:
- White crystalline powder
- Purity:
- Typically ≥96–98%
Sodium Sulfite Industrial Supplier
YuXing supplies Sodium Sulfite, CAS No. 7757-83-7, molecular formula Na₂SO₃. The product is white crystalline powder, with purity Typically ≥96–98% and typical packaging of 25 kg bags.
For grade, impurity limits, packaging and delivery confirmation, browse Inorganic Salts & Chemicals or send the application, specification, quantity and destination port through the contact page.
Sodium Sulfite Specifications
| Item | Specification |
|---|---|
| Product Name | Sodium Sulfite |
| CAS No. | 7757-83-7 |
| Molecular Formula | Na₂SO₃ |
| Molecular Weight | 126.04 g/mol |
| Appearance | White crystalline powder |
| Purity | Typically ≥96–98% |
| Solubility | Soluble in water |
| Product Type | Industrial Chemical / Reducing Agent |
| Typical Packaging | 25 kg bags |
These are common or typical specifications, not a fixed promise for every batch. Confirm the agreed product specification, batch COA and contract requirements before purchase.
Product Characteristics and Use Considerations
Sodium Sulfite is an industrial chemical / reducing agent and is soluble in water. Performance and suitability depend on grade, impurity control, process conditions and compatibility with other materials. Validate the product before bulk use.
Industrial Applications
- Industrial reducing-agent and oxygen-scavenging processes.
- Water and wastewater dechlorination in compatible systems.
- Pulp, paper, textile and chemical-processing applications.
- Preservation or stabilization uses only where the confirmed industrial grade is appropriate.
How to Select the Right Grade
Confirm sodium sulfite assay, sulfate, thiosulfate, iron, insoluble matter and moisture. Because sulfite can oxidize during storage, packaging integrity and storage conditions should be reviewed.
Packaging, Storage and Documents
Typical packaging is 25 kg bags, subject to grade, quantity, transport and destination requirements. Keep the product sealed and follow the applicable SDS, label, compatibility and site procedures. TDS, MSDS/SDS and COA can be coordinated according to the confirmed grade, order and batch conditions.
Frequently Asked Questions
What are the CAS number and formula of Sodium Sulfite?
The CAS number is 7757-83-7 and the molecular formula is Na₂SO₃.
Are the listed specifications fixed for every batch?
No. The page shows common or typical values. Final values are based on the confirmed grade, batch COA and contract specification.
What information is required for a quotation?
Provide the product name, target content or key values, application, quantity, packaging preference, destination port and required documents.
Can YuXing provide TDS, MSDS/SDS and COA?
The relevant technical and batch documents can be coordinated according to the confirmed product grade, order and batch conditions.
How can I request a quotation?
Submit the requirement through the YuXing contact page.
Product Information Notice
- The values shown are typical reference information and are not a guaranteed sales specification. Final specifications are subject to the confirmed product, grade and batch COA.
- Packaging, transport method and hazard classification must be confirmed according to product grade, order quantity, destination regulations, shipping route and the current SDS.
- TDS, SDS/MSDS and COA files are provided according to product, batch and destination requirements. Public documents should not be treated as final delivery documents unless issued for the current batch.
- This page is for procurement discussion and technical selection reference only. It does not replace safety, regulatory, process design or site operating advice. Users must follow local regulations and the latest SDS.
