Sodium Thiosulfate
- Product Name:
- Sodium Thiosulfate
- CAS No.:
- 7772-98-7 (anhydrous)
- Molecular Formula:
- Na₂S₂O₃
- Molecular Weight:
- 158.11 g/mol
- Appearance:
- White crystalline powder
- Purity:
- Typically ≥98–99%
Sodium Thiosulfate Supplier
YuXing supplies Sodium Thiosulfate for dechlorination, water treatment and chemical processing. The anhydrous product has CAS No. 7772-98-7 and molecular weight 158.11 g/mol, with typical purity of ≥98–99%.
For grade, packaging and delivery confirmation, browse Water Treatment Chemicals or send the application, specification, quantity and destination through the contact page.
Product Specifications
| Item | Specification |
|---|---|
| Product Name | Sodium Thiosulfate |
| CAS No. | 7772-98-7 (anhydrous) |
| Molecular Formula | Na₂S₂O₃ |
| Molecular Weight | 158.11 g/mol |
| Appearance | White crystalline powder |
| Purity | Typically ≥98–99% |
| Solubility | Highly soluble in water |
| Product Type | Industrial / Water Treatment Chemical |
| Main Application | Dechlorination, water treatment, chemical processing |
| Typical Packaging | 25 kg bags |
These are common or typical specification ranges, not a fixed promise for every batch. Confirm the agreed product specification, COA and contract requirements before purchase.
How It Works and Use Considerations
Sodium thiosulfate is a water-soluble reducing agent commonly used to neutralize residual chlorine in compatible water-treatment processes. Product form, purity and required dosage should be confirmed according to the treatment system and residual oxidant level.
Applications
- Residual chlorine neutralization and dechlorination.
- Water and wastewater treatment processes.
- Chemical processing and reducing-agent applications.
- Industrial processes requiring a readily water-soluble thiosulfate source.
How to Select the Right Grade
Confirm whether anhydrous or another hydrate form is required, because CAS number, molecular weight and assay basis can differ. Provide purity, application, water conditions, quantity and packaging requirements when requesting a quotation.
Packaging, Documents and Quotation
Packaging is shown in the table above and is confirmed according to product form, order quantity, transport requirements and destination. TDS, MSDS/SDS and batch COA can be coordinated subject to order conditions. Include product name, target specification, application, quantity, packaging preference and destination port in the inquiry.
Frequently Asked Questions
Are the specifications on this page fixed?
No. The page shows common or typical ranges. Final requirements are confirmed by grade, batch COA and the agreed contract specification.
What information is needed for a quotation?
Provide the product name, target specification or concentration, application, quantity, packaging requirement and destination port. For water-treatment projects, also describe the source water or wastewater and treatment target.
Can YuXing provide TDS, MSDS/SDS and COA?
The relevant technical and batch documents can be coordinated according to the confirmed grade, order and batch conditions.
How can I request a quotation?
Submit the requirement through the YuXing contact page. We will confirm the supply option based on specification, quantity, packaging and destination.
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.
